Jake brake not working on high

My boyfriend has a 2015 Peterbilt 389. 2000s Detroit 60's series 12.7L. He is having issues with his Jake brake and cruise control. They work, then quite working, but they work and quite working at the same time.

really ECM output has current sensor. not sure, but may get short circuit fault code. In 24 v trucks it works, not sure about 12v trucks. Ok, before u do it, check wires and solenoids with DVOM. May be electrical parts are ok,and just valve is stuckWill not disable any Jake functions. Medium Jake request (pin K2) Supplying a ground enables the Jake brake for Cylinders 3, 4, 5, and 6. Low Jake request (pin K3) Supplying a ground enables the Jake brake for Cylinders 1 and 2. Park Brake (pin H2 on the ECM) Has no effect on Jake functions. Service Brake (pin G2 on the ECM)When you press the accelerator to deactivate the jake brake system, the electronic throttle sends a signal to the computer to shut off the power to the jake brakes for acceleration. The switch inside the pedal seems to be not working. Try removing the harness from the pedal and cleaning the contacts with electrical cleaner and then reinstall ...933 posts · Joined 2008. #2 · Sep 13, 2011. its an turbo brake that has to deal with the VGT on the turbo. Ive never used it but its supposed to be bad for the turbo. btw a Jake holds the exhaust valves open and defuels and is completely different. 1990 F-350 RCLB 7.3 IDI auto. -restored. 2003 mustang cobra. -505 rwhp/486 rwft.lb.Satisfied Customers: 4,370. Experience: ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, Network Engineer specializing in CAN faults, Aftertertreatment, and vehicle communications. Verified. Jeremy and 87 other Medium and Heavy Trucks Specialists are ready to help you.Jake brake issues? Check this first. 76K views 3 years ago. ...more. 26.5K subscribers. Hey Truckers! D13 2013, with 900,000 miles and the customer brought the truck in because the …

Engine braking works by using the vacuum created by the driver releasing the accelerator pedal to restrict airflow from the engine's cylinders. This decreases the engine's energy output, causing resistance in the engine and braking force. The benefits of engine braking include reduced brake wear, better vehicle control, and improved fuel ...the factory Jacobs brake is vacuum, if it is the factory dealer installed setup then it uses apps signal and idle validation info from the ECM to work the brake, if all of …Jan 6, 2018 ... Now accepting support and donation to my channel. accepting: personal check, business check, money orders, gift cards, gifts, tools, ...A jake is a young male wild turkey that can be distinguished from an adult, or tom, by the length of its middle tail feathers. The adult males will have tail feathers that are all ..."With a Jake Brake, there is no better way to extend the life of service brakes and help promote safe vehicle operation in virtually any commercial vehicle application or vocation. "At a basic level we want to help service technicians easily cross-reference part numbers where they have a Jacobs' part and number but need an OEM part number ...

A compression release engine brake from Jacobs Vehicle Systems, popularly known as a "Jake brake" A view of engine compression brake rocker arm (the thinnest arm at the left of each set) Jacobs Engine Brake Division logo A compression release engine brake, compression brake, or decompression brake is an engine braking mechanism installed …But as for the EBPV being a jake brake it is not. Its a completely different way of retarding the truck. If you watch the boring video i posted above it explains how a jake brake works and you can see why our truck can never have one. Local jackass member Pat. 2000 F-350 7.3L ZF6.Hey Truckers! D13 2013, with 900,000 miles and the customer brought the truck in because the Jake Brake is not working. Tune in as Jose takes a look at the t...The Jake Brake is an invaluable, extra tool available for truck drivers. It is primarily used for slowing down a big rig in certain situations. It is not intended as a substitute for the service brakes. It operates using the diesel engine’s own power. The same force that gives the truck power is used to slow it down.And while the 6.7L exhaust brake won't bring you to stop. It does a great job of holding your speed down a grade. I don't use my EB to SLOW me down, But rather to HOLD my speed. I cross the summit on a 7% or 8% grade, slow down about 5 mph slower than I want to travel down the grade and set the EB.

Phasmophobia holiday event 2023 snowman locations.

Jim. Jim. Category: Medium and Heavy Trucks. Satisfied Customers: 116. Experience: U.S. Army Diesel tech. Owner of truck facility specializing in all diesel engines. Ask Your Own Medium and Heavy Trucks Question. The cruise control is working while the jake is not. Technician: Jim.That is why it's wired backwards in some folks eyes so that one circuit could run both brakes on 2 switches. Putting a splitter coming out of the power in to the Jake switch would work but isn't the right thing to do technically. Also would want to insure that power goes through clutch switch to fuel pump switch first as well.Toggle the switch between high and low. There is a distinct difference in the exhaust sound between high and low. From past experiance i know that if the gas pedal is not showing 0 input the jake brake will not operate. Found a worn bracket one time on an older rv we used to own.The Jake Brake is powered by a terminal on the car's ignition switch. The electric charge helps engage the Jake Brake whenever the button is triggered. A circuit breaker or a 10-amp fuse is used to safeguard the circuits against overloads and other dangers. If you want to know the fuses I used, check this fuse assortment kit from Amazon. As a user, one …Joined: Jan 2018. RE: ISX 870 jake brake issue. Those percentages show that the ECM is recognizing the 3 different stages you command. Your problem is probably gonna be in the engine (possible solenoid or rocker), jake wiring harness, turbo, or the turbo plumbing and actuator system. What boost pressure readings are you getting under a full ...Does cruise Control work? If not it will be a clutch or brake micro switch. Being 2010.... the Jake brake will be an earthing signal. The ECM has drivers and provides 12v and plenty of current to the Jake brake solenoids. The ECM earths those solenoids on command to operate the Jakes. As far as the on/off and high/low switch in the cab, they ...

Re: DD15 Rear Jakes stuck on not activated. Sep 17, 2020 5:53 PM You definitely had rear engine brake hanging up- I would replace solenoid and manually operate them while checking for plungers sticking on 4,5 and 6 and also check for oil leaks from rockershaft/jake brake rocker arm area. I would replace solenoids-both, atd has defiantly been ...Posts: 32. Jake brake problems. I lost high jake brake last year, low still worked. This is on a 1998 Executive with a M11 engine. Took it to Cummins in Coburg. The tech figured out it was the high/low switch, but a replacement was not available, so he added two single pole switches to use. It seemed to work on level ground so we headed to Alaska.I have a cat 13 motor with Jake brake problems. Jake brake does not work in level 1. It does however work in mode 2 and 3. I get the fault 121-06 low/hi retarder. I replaced solenoids, checked power, checked toggle switch. I am lost. I unplugged the connector to my toggle switch and still got the fault...please help!Torque the engine brake mounting bolts using the following sequence: Torque the two bolts on the camshaft side of the engine to 55 N·m (40 lb·ft). Torque the four bolts on the exhaust manifold side of the engine to 55 N·m (40 lb·ft). Repeat the tightening sequence and re-torque all bolts to 136 N·m (100 lb·ft).The Jake Brake is an invaluable, extra tool available for truck drivers. It is primarily used for slowing down a big rig in certain situations. It is not intended as a substitute for the service brakes. It operates using the diesel engine’s own power. The same force that gives the truck power is used to slow it down.With out cats ET I would check under valve cover area first check by activating each solenoid.This will tell if you need to check electrical wiring back to the ecm then to the brake switch then to the control dash brake switch. 05chopper, Jul 22, 2009. #9. Jul 22, 2009 #10.Cruise control and Jake Brake: CoreyinWP: Entegra Owner's Forum: 14: 07-31-2014 09:50 AM: 2004 Monaco Signature Jake Brake and Cruise Control Failure: OldeDoggie: Monaco Owner's Forum: 46: 02-18-2014 10:26 PM: Cruise Control and Jake Brake: Tom&Marie: Monaco Owner's Forum: 10: 10-20-2012 06:40 AM: Jake brake activation while in cruise control ...Dionicio0911 Bobtail Member. I just bought a KW with t680 mx 13 in it. So far no problems except when using the jake it feels like it sputters like its missing as it slows down. I did overhead adjustmrnt and looked at all solenoids they looked ok (I did not take them out). I guess its not a big deal but it just seemes odd.If it is working right, low (one Jake) will give you the Cummins death rattle just before it disengages as you come to a stop. High (both Jakes) does not produce the death rattle before it disengages. High has a more aggressive braking action especially at highway speed. At low speed it is not as noticeable of a difference.I have a 2002 kenworth t800 with a c10 cat engine. The jake brake will only work if the cruise control switch is in the off position. Cruise control does not work either, however, when the truck is parked, you can use the Cruise switches to put the truck on fast idle. Answered in 1 minute by:5. Measure the resistance across the Jake Brake solenoid. [a] If the resistance is greater than 15 Ω, replace the Jake Brake solenoid. Refer to section 82.2.1.1. [b] If the resistance is less than 15 Ω, repair the open between pins 7 and 8 of the front injector valve cover harness connector and the Jake Brake solenoid. Refer to section 82.2.1.1.

With out cats ET I would check under valve cover area first check by activating each solenoid.This will tell if you need to check electrical wiring back to the ecm then to the brake switch then to the control dash brake switch. 05chopper, Jul 22, 2009. #9. Jul 22, 2009 #10.

The Jake Brake is powered by a terminal on the car's ignition switch. The electric charge helps engage the Jake Brake whenever the button is triggered. A circuit breaker or a 10-amp fuse is used to safeguard the circuits against overloads and other dangers. If you want to know the fuses I used, check this fuse assortment kit from Amazon. As a user, one may be concerned if the Jake Brake can be ...As you already know, a jake brake allows compressed air in the cylinder to escape. On the other hand, an exhaust brake keeps the air from the engine in the exhaust system. This results in back pressure, which slows down the engine's rotation. While both brake systems have their own strengths and weaknesses, here is the main difference: The ...Normally, when you take your foot off of the brake, the air flow continues and the momentum of the cylinders keep the vehicle going forward. The Jake brake restricts that airflow so compressed air builds up in the engine. This artificially slows down your engine’s cylinders and helps you slow down. [2]Normally, when you take your foot off of the brake, the air flow continues and the momentum of the cylinders keep the vehicle going forward. The Jake brake restricts that airflow so compressed air builds up in the engine. This artificially slows down your engine’s cylinders and helps you slow down. [2]Yes, because in a Jake brake, you release the compressed air at the top of the compression stroke, and then close the exhaust, so you create a vacuum during the work stroke of the cycle. In a gas engine you get some braking from the compression, but it's not vented early, so the cilinder will basically decompress the high pressure to atmospheric.Absolutely, Mark. If you're smelling the brakes and gaining too much speed downhill, trying a lower gear like 8th might help control your speed better with less brake use. The Jake Brake's effectiveness can vary between trucks, so even if the dealer says it's working, it might not feel as strong as you're used to.engine brake performance, serious engine damage, or both. NOTE: Slave piston clearance settings for the different engine models are not the same. MODEL NUMBER/DISPLACE-MENT/MODEL YEAR ENGINE BRAKE SLAVE PISTON ADJUSTMENT 6067WU40 11.1L PRE - 1991 760/760A 0.660 mm (0.026 in.) 6067GU40 12.7L PRE - 1991 760/760A 0.508 mm (0.020 in.)Cruise and jake brake do not work on my 2008 Peterbilt with ISX in it. Just had ECM replaced and tuned. worked before. ... Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent. Tory Johnson, GMA Workplace Contributor ...speed sensor new, brake pedal switch working , brake air pressure sensor working one next to clutch pedal on the fire wall , clutch switch working , engine brake working ,speedometer working , cruise will work when the truck is parked,will not work when in motion Controls for the cruise, of, on, resume, + and all working when parkedHi my name is***** will try to help. Since this is a new installation I think the best way to start with this is to give you the installation guide with all the specs and wiring so you can first retrace your steps to see if anything may have been missed. Dan : Attachment: 2014-11-26_194748_cummins_m11_jake_brake_21474e.pdf. Full Size Image. Dan :

Wyyerd internet reviews.

Introduction to medical terminology chapter 1.

14liter Detroit Freightliner Columbia 2006. Check engine lights coming on and accelerator pedal no longer works. Also while driving it will speed up. Max Diesel Tech. Electrical theory. 27 satisfied customers. Jake brake is not working Freightliner Jake Brake.The switch on the dash selects between high (all 6 cylinders) or low (only 3 cylinders). The foot switch actually activates the Jake engine brake on and off, as long as no throttle input is registered. On my 02 Exec the switch to left of driver is for 2 stage Jake, lo-hi not on/off. Thanks guys!You're refering to an exhaust brake (NOT a Jake Brake) which simply closes a valve in the exhaust (after exiting the engine) to increase backpressure which works against the pistons (on the exhaust stroke) to (theoretically) slow the vehicle. 1. You'll never be able to hold it closed by hand (at least not tight enough to make a difference) 2. They don't do much anyway, especially when used for ...This is one of the biggest myths in trucking. The answer is NO. Using an engine brake has zero impact on the life of your truck. The jakes are simply releasing compression in the engine as a way to reduce the energy being sent to the crankshaft. There is nothing in this process that is harming the engine.Here's a great video showing a guy with an old Diamond-T with a Detroit 4-53T (2-stroke, Turbo, 4 cylinder, 53 cubic inches per cylinder) with jake brake. You can see him working the jake switch and even jake shifting a few times. 2007 3500 MC DRW 4x4 5.9L (122k mi) G56 / SBC SDD3250.It sounds like your Jake brake is not working for some reason and hopefully that will get resolved. I think by your question you are not overly familiar with a Jake brake. ... Questions regarding my C12, I always try to monitor the RPMs so the High Speed Jake will not cause any over spinning. With HS Jake engaged I try to not allow over 21-2200 ...Posted 7/21/2013 17:44 (#3221227 - in reply to #3221023) Subject: Re: m11 cummins jake brake problem. Wi. Could be an issue with accelerator. Cruise will still work but if jake sees accelrator applied it wont activate. Try pulling up on the pedal once.This is accomplished by a hydraulic circuit that opens the exhaust valves near the end of the compression stroke. Engine brakes provide the maximum retarding power at rated speed; therefore, gear selection is important. Position 1 = 33-percent engine braking powerPosition 2 = 67-percent engine braking powerPosition 3 = 100 percent …First and foremost - make sure your brakes are working! Test the Jake Brake at the beginning of each trip. Also, the Jake Brake works best on dry roads, in normal weather conditions. It can be used in combination with the foot brake. However, make sure that when you use the Jake Brake, the engine is not cold. It should be operating at normal ...Jake Brakes come to the rescue by providing supplementary braking power. The compression release mechanism slows down the engine's RPM and effectively retards the vehicle's speed. This enhanced control ensures safer descents, prevents brake overheating, and reduces the risk of accidents due to brake fade.The Jake Brake doesn't seem to work when in neutral. Teoretically it shoudn't matter wheter the transmission is in gear or not. It should drop the RPMs anyway, provided that neither the clutch nor the accelerator are pressed. I've also read on this forum that in the real word it can be used to make the RPMs drop faster during a gear shift.There should be a tag on the valve cover. It could start with 4CK, 8TC, or 5EK. I mainly need to know if this is a 3406 PEEC engine or a 3406E. A PEEC engine is half electronic and half mechanical. If it is a PEEC, ir will have a pump and external fuel lines. If it is a 3406E, it will not have a pump and external fuel lines. ….

Aug 7, 2018 ... Engine brake not working. 41K views · Streamed 5 years ago JJ TRUCK ... DD15 and DD13 engine brake, exhaust brake, Jake Brake adjustment.By using a Jake Brake, this pressure is significantly reduced, leading to less wear and tear. This not only prolongs the life of the brake pads and discs but also reduces the risk of brake failure due to overheating. Enhanced Fuel Efficiency: When a Jake Brake is employed, the truck's reliance on fuel for deceleration decreases.6.7 Engine Brake Issues. I just have a few questions. Looked around but didn't see anything related to my exact issue.. So my turbo engine brake is not working on a consistent basis. Sometimes when I got the button on the engine brake works, and other times it doesn't. The conditions seem to be the same all the time I'm at highway speeds.1216 posts · Joined 2011. #17 · Jan 17, 2013. The literature for my Cummins ISL states they specifically added roller lifters to this engine to deal with the valvetrain loads of the Jacobs model 490 engine brake. Why, I don't know, but it's a big enough deal Cummins put it in their literature. Like.Join Date: Dec 2011. Location: Mount Holly NC. Posts: 134. Jake brake not working. We are traveling from NC to MA and left electronic schematics book at home. I can't find the fuse/relay location. Checked the fuses in the panel outside on drivers area as well as 12volt panel in engine compartment drivers side and nothing is labeled Jake brakeCaptain Pothead Dec 4, 2016 @ 8:34am. Mine works. I noticed in the options my engine brake was not set, so I set it. #1. jeffunik72 Dec 4, 2016 @ 11:35am. Thats the thing Ive re-installed from scratch.. without mods... and it still doesn't work. #2. Chris Dec 18, 2016 @ 3:30pm. Lost the jakes on all the trucks as well.High idle cruise control and Jake quit working on a DD15 western star Cruise Control. Mechanic's Assistant: Im sorry to hear about the issues youre experiencing with your DD15 Western Stars cruise control and Jake brake, but our truck Mechanic will be able to help you diagnose and resolve the problem. Have you noticed any other issues …Joined: Jan 2018. RE: ISX 870 jake brake issue. Those percentages show that the ECM is recognizing the 3 different stages you command. Your problem is probably gonna be in the engine (possible solenoid or rocker), jake wiring harness, turbo, or the turbo plumbing and actuator system. What boost pressure readings are you getting under a full ...speed sensor new, brake pedal switch working , brake air pressure sensor working one next to clutch pedal on the fire wall , clutch switch working , engine brake working ,speedometer working , cruise will work when the truck is parked,will not work when in motion Controls for the cruise, of, on, resume, + and all working when parkedI have a cat 13 motor with Jake brake problems. Jake brake does not work in level 1. It does however work in mode 2 and 3. I get the fault 121-06 low/hi retarder. I replaced solenoids, checked power, checked toggle switch. I am lost. I unplugged the connector to my toggle switch and still got the fault...please help! Jake brake not working on high, My Jake brakes were working good then they suddenly got week. Manifold pressure is down as well but I believe its a sensor because the truck is running good. Changed out all three sylinoids. jakes are working in low med and high however doesnt hold you back. Does anyone have any suggestions on what to do. The Pete is a 379, …, Found a broken wire in the harness and fixed it. I was told to check the clutch pedal switch, brake pedal switch, and speed sensor. Then I was told if it was that, they …, Posts: 2 Threads: 1. Joined: Oct 2020. 1 11-23-2020, 11:03 PM. Hi everybody. Is anyone here familiar with dd15 engine brakes? Have a freightliner with dd15 epa 07, jake brake not working. Cpc doesn't have wiring to jakes, so which ecu controls jake brakes? Is there any fuses for it? Switches working properly but signal don't reach solenoids., Torque the engine brake mounting bolts using the following sequence: Torque the two bolts on the camshaft side of the engine to 55 N·m (40 lb·ft). Torque the four bolts on the exhaust manifold side of the engine to 55 N·m (40 lb·ft). Repeat the tightening sequence and re-torque all bolts to 136 N·m (100 lb·ft)., 3 on each side. Technician: go-west.. ok. infront on the passenger this the pdm. there is a relay there called a retarder relay and if its in backwards of missing the brakes wont work,but hears the kicker,its not marked,When the cover is opened and you look in,look at the relay bank thats is closest to you,the ones thats are not marked,is the …, This is a video on performing a tune up on C12 engine. We pin the engine and adjust the valve lash, injector heights and jake brake clearance. The video is i..., Message format. Flat Threaded Nested. Putz. Posted 2/20/2013 21:38 (#2914007) Subject: Jake Brake ? on Detroit 12.7. NW ND. I've got a 2002 Freightliner with 12.7 Detroit. Last fall I noticed that sometimes the Jake would not engage when I flipped the switch. Now it hasn't worked at all for the last few days., High School or GED. 2,004 satisfied customers. I have a 2000 w900L kenworth with a 2004 isx 475 the cruise. ... Jake brake is not working. Checking for voltage at the power supply to the Jake on off switch with a power probe, key on engine off, it shows 1 ..., A Jake Brake, also known as Jacobs Engine Brake, is a vital supplementary engine braking system primarily utilized in heavy-duty diesel trucks and commercial vehicles. This innovative technology plays a critical role in slowing down and managing the speed of these substantial vehicles, especially when navigating downhill gradients or steep ..., stopping at the spot where service work will be done. 2. Park the vehicle on a level surface, shut down the engine, and set the parking brake. Chock the tires. 3. Remove the steering wheel cover module by prying its corners away from the steering wheel and pulling the module out. 4. Disconnect the horn and steering wheel switch connectors. See ..., Dec 3, 2006 · My friend has a C15 CAT and says the Jake engages properly, but is late to disengage. I have my jake Brake book, only talks about problems with the Jake Brake not working. I have never wrenched on a CAT, just Detroits. Any suggestions would be great. Thanks in advance. :thanks: Sammy , Trouble Shooting Guide for Jacobs Brake. Support Topic. Get Support. 1. Previous Tutorial shifting a 5 and 4. Next Tutorial Replacing the B-Model Headlight Switch. Trouble Shooting Guide for Jacobs Brake., Posted 10/24/2007 21:02 (#226004 - in reply to #225553) Subject: RE: Jake brake sticking. 68340. On my KW 1979, I think. It has a switch by the clutch peddle. If I put the clutch down the jake is disconnected. Let the clutch up the Jake works, along with the other toggle switch. Might be that switch is stuck or bad., Working when not turned on or not working are often electrical issue, and hard parts won't solve it. Mine acted up a long time ago, but it seemed to cure itself. There was a change of what would work with the buttons in the wheel, the 2013 I have have the level on a rocker switch and simple on /off on the wheel., If you own a press brake, you understand the importance of keeping it in good working condition. However, like any other machine, press brakes can experience issues over time and m..., Seriously. Not using engine brakes doesn't make you safer, having a problem using them is a warning that you may be in a hazardous situation and should consider using chains or taking a break until conditions improve. Test brake often to make sure you're not losing control and can still stop, but FFS, don't brake abruptly or stop in a lane of ..., I have a cat 13 motor with Jake brake problems. Jake brake does not work in level 1. It does however work in mode 2 and 3. I get the fault 121-06 low/hi retarder. I replaced solenoids, checked power, checked toggle switch. I am lost. I unplugged the connector to my toggle switch and still got the fault...please help!, 7 posts · Joined 2012. #8 · Apr 25, 2013. the Jacobs brake was designed by clessie cummins but he worked for a drill chuck company called Jacobs drills, therefore he had to patent it under their name. jake brake is specific brand of an internal compression brake. cummins now uses whats called the Cbrake on their freight trucks and your little ..., Today you pulled along side of me as we drove up I-75 on flat ground. I was the guy pulling the horse trailer. Just to have a little fun you decided to pull the jake brake, not once, not twice, but 3 times. Wow that was funny! My horse broke her wall tie, snapped her halter and fell down in the..., Find out what Jake Brakes actually are and how they work to slow down enormous semi-trucks, pickup trucks, and trailers. There’s no doubt you’ve heard Jake Brakes being used on semi-trucks ..., A Jake Brake is a separate component installed on diesel engines. When engaged, it releases compressed air, using kinetic energy to slow the vehicle. This is why truck drivers also refer to it as the "compression release brake". Basically, it puts resistance or drag on the crankshaft, and therefore on the tires, to slow the vehicle down., The. front engine brake solenoid controls cylinder 1 and 2. The rear engine brake solenoid controls cylinders 3, 4, 5, and 6. NOTE: On all DD engines, engine brake performance increases as engine speed increases. The engine. brakes are most effective at higher engine speeds. Engine brake solenoids typically do NOT cause engine., The compression brake does not work on high. Cylinder 3-4 Jake solenoid works on low. ... The jake brakes quit working,when the truck is running and I turn the jake on and off switch to the on position it causes the check engin ..., The Jacobs Engine Brake (also known as the "Jake Brake") is a diesel engine retarder that uses the vehicle's engine to help slow and regulate it. When the engine brake is engaged, the exhaust valves of the engine are altered, allowing the engine to function as a power-absorbing air compressor. This slows or retards the car's drive ..., 10 posts · Joined 2023. #1 · Sep 13, 2023. Odd problem developing over the last few months with 97 t 100, 4 cyl, 5 speed. On deceleration sound like jake brakes on a big truck, but not as loud. Most noticeable on city streets in 2nd or 3rd gear when letting foot off gas. It's somewhat annoying., How show you how and where two different engine brake switch location and how they work on 2018 freightliner Cascadia with Detroit Diesel engine. BUY ME LUN..., Jake's are only working in High, not low. While driving engine code 121-5 goes active. ... C15 NXS16964 jake brake will not shut off cannot start the engine ... Hi, my 2007 cat c15 engine brake not work! Cod comes on computer 14 low/high retarded current low ..., The Engine or Exhaust brake option is available, and RETROFITTABLE on 2004 and newer DT466/570 engines, plus the MaxxForce 8,9, and 10 engines. The Engine brake works in a manner similar to, but not the same as, the "Jake" style of engine brakes. It also combines use of the VGT function to dramatically increase total engine braking power., Reman replacement lasted 780k. This time nozzles started to stick just little bed and shroud plate in turbine housing was cracked. Engine brake is about 50% stronger, full boost is little higher and pull harder. Not bad for $2500 repair (no labor, i replace by my self) Slow302, Mar 30, 2015. #8., The multimeter model I use to troubleshoot listed on the Amazon Affiliate Link listed right here: https://www.amazon.com/gp/product/B0002YFD1K/ref=as_li_tl?..., Working on a isx cm870 cummins. The jake only seems to work on 1 stage. I know the ecm pin 18 is 1st stage, pin 8 is 2nd, and pin 7 is third. I think I am going to do a wire overlay from the switch to … read more, My Jake's has low medium and high setting. My middle jake brake won't turn on at all and high doesn't work to well I believe that's tied into the medium setting not working. I installed a new switch and put both jake brake solenoids. Still no Luck. Any suggestions. Dd13 2011 cascadia. Click to expand... I don't know Detroit's but I'm ..., Jake brakes are designed to save wear and tear on service brakes. If used properly, they can add years to a truck's brakes. They also save wear and tear on tires. "Jake brake" might sound clever because it rhymes, but that's not the reason for the term. "The name 'Jake brake' comes from a product that, unsurprisingly, is named the ...