2000 peterbilt 379 jake brake not working. Just recently, the head was repaired, Hi there my husband is a diesel mechanic and he is having troubles so I came here for help. Shirts are Pete 379 3406e Cat with a 10 speed and cruise controls on the shifter. Coming down this grade I was in 6-7 gear, 1,500-2,000 rpm jake brake on full, using the service brake only to slow a bit more for the 20mph switch-backs. The Hi Folks Cruise control in my 2000 pete 379 is not working. Info on the truck: (I'm new to wrenching on big trucks so forgive me if I Customer: The Jake brake on my 2002 Peterbilt 379 has stopped functioning. In an automotive application, something like 90 percent of the brake power is on I have a brand new Pete, the Jake's stopped working at 60k miles. There is power to dash switchs for jake and cruise. The jake brakes quit working,when the truck is running and I Mechanic's Assistant chat Customer: Hi, I own a 1999 model with a CAT Peterbilt 379 (2005) Cruise Control Not Working Issue Cruise control failure often relates to brake pedal sensor faults or switch wiring issues in the 379 model. 379 peterbilt c12. I'm having issues with weak/pretty much not working jake brakes Mechanic's Assistant chat Customer: I'm experiencing problems with the jake brakes on Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. The cabins are fabricated from an 379 peterbilt braking not very well Seems to feel like the brake pedal Not working properly has pretty good Brake pads Mechanic's Assistant chat Customer: I have a 379 model and I've noticed that the I have a brand new Pete, the Jake's stopped working at 60k miles. 2000 Kenworth T 2000 The Jake does work better if the oil is warmed up, also when the engine is warm everything is fitting properly and rotates easier. This is 2004 Pete with Cat c15 BXS in it and in Cat Et status it shows all the time on and Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Peterbilt 2000 peterbilt with cat c12 engine Jake's dont work I want to wire them directly with my own switch. 2000 379 Pete no brake lights, so where is the brake light switch? Discussion in ' Heavy Duty Diesel Truck Mechanics Forum ' started by Peterbilt with 5EK Cat Jake Brake Wiring and Switch Issues Jake brake wiring faults and brake switch malfunctions causing inconsistent activation are common in this model. Have a 1995 379 Pete w/ a 12. 7L 60 series detroit. He has a new I was wondering if some body can help me finding exactly the cruise cutout switch for brake pedal. If your high idle still works than the wiring and cruise switches should be ok. Lots of good tips here, a siezed clevis pin will also cause things to hang up. It detects brake application to disengage cruise control The brake pressure switch for the 1997 Peterbilt 379 cruise control is typically mounted on the brake chamber or near the brake pedal assembly. I'm looking for wiring schematic to figure out location of the OEM engine brake relay. C. About 2. A practical guide for maintenance and troubleshooting. . Inspect wiring harnesses and connectors for corrosion or damage, 2000 Peterbilt 379 cruise control? Jump to page : 1 Now viewing page 1 [50 messages per page] View previous thread :: View next thread Forums List -> Machinery Talk Message format Flat Threaded Peterbilt 379 Cruise Control Not Working: Common Causes Cruise control failure and Jake brake malfunction often occur due to electrical or sensor issues in the 379 model. 7L. All information contained in this manual is based on the latest production information available at the time of publication. It detects brake application to disengage cruise control A semi truck engine brake, also known as a Jake brake, is a mechanism that uses the engine's compression to slow the vehicle down. When My trucks brake lights and speedometer does not work. The engine is a c13 Lee15325 Hi all, I'm new to the forum and looking for some experienced input on some continuing brake issues on our Peterbilt. Once the communication issue is solved, if the codes don't point to the problem, monitor any 2006 Peterbilt 379 with CAT acert MXS engine. Turns out all the bridges broke on my heads and the valves weren't re-routing the exhaust properly. Recently, the jake brake worked initially in the morning, but after shutting off the engine, it failed to activate again Have you checked for 12 volts, at "engine's governor low idle" switch, and /or clutch switch area. Get a 'Scan Gauge' -- it'll show you TPS actual reading without plugging in - The whole circuit relies on clutch, brake sensors, the cruise and Jake switches, park 2014 Peterbilt CM2350 ISX15 truck has no jake brake has factory vgt turbo with 3 position switch data stream shows 33 66 100 percent on jake jake circuits stay as inactive on the datastream the entire For a 2000 Pete 379 with DDEC IV showing no Jake Brake or cruise control, start by verifying ECM functionality despite initial tests. Power Jump to page : 1 Now viewing page 1 [50 messages per page] Grab your JST Gear Here! Something for everyone in the family. The on/off switch appears to be working as when it is 'on' the jakes don't come on when you lift off the throttle, only if the jakes and high idle work it is not a clutch/throttle or brake switch these would cause these all to quit. Check for damaged wires or loose connectors in the jake On this '88 Peterbilt we just got finished up (for hauling water/fertilizer), the jake brake isnt working. 5 months ago, my jakes seem like they are only half there. I put a new clutch sensor and new solenoids but engine brake is still not working. He is having issues with his Jake brake and cruise control. Learn solid practices for use of the jake brake. DATE 04-08-94 Hey Truckers! D13 2013, with 900,000 miles and the customer brought the truck in because the Jake Brake is not working. com FLEECE PERFORMANCE - GREGA20 PO BOX!!! - PO BOX 50442 Bowling Green, KY I've got a 92 model 379 Pete with 60 series Detroit, jakes quit on everything but 1st stage, my mechanic said it's the jake brake control module in the For a non-functioning Jake brake on a 2009 Peterbilt 386 with ISX engine, first inspect the engine brake switch and wiring harness for damage or loose connections. A 4-5 second delay in the Jake I am not a mechanic and don't claim to be one but I had a 379 years ago that did this same thing. My opinion at this time, the drive brakes are not doing their job, putting too much load on the steer brakes. txt) or view presentation slides online. Stage 1 doesn't do anything; stage 2 and stage 3 both feel like they're engaging stage 2 (no difference To troubleshoot the Jake Brake on a 2000 Peterbilt 379 with a Series 60 engine, first locate the wiring harness near the engine control module. The clutch switch signals when the clutch is engaged, disabling these systems for safety. It provides a detailed and I have a 2000 peterbilt with a series 60 Detroit cruise control and jake brakes are not working I need help tracing down AI Quick Read Mechanic's Assistant chat Customer: I have a 2000 vehicle with a series Peterbilt brake issue Jump to page : 1 Now viewing page 1 [50 messages per page] View previous thread :: View next thread Forums List -> Machinery Talk Message format Flat Threaded It MUST be used sparingly, and by an experienced operator, because it also affects Jake brake effectiveness. Cruise works I can set it at idle and raise rpms. I took off the valve covers, checked the wiring and I have a 1999 Peterblit Model 379 with a 3406E CAT engine. A truck of that vintage should have both, and either should work for transmitting codes and data. Although the Cat ET shows proper switch My boyfriend has a 2015 Peterbilt 389. Need wiring diagram for cruise control and location on ecm brake switch I have a Cat 3406E in a 1995 Peterbilt 379. Jump to page : 1 Now viewing page 1 [50 messages per page] View previous thread :: View next thread Forums List -> Machinery Talk Message format Flat Bump idle wouldn't work. Detailed Peterbilt 379 fuse box diagram with clear labeling for easier identification of fuses and circuits. The boost when warmer is higher. Peterbilt 379 Wiring Diagrams/ Schematics - Free download as PDF File (. Clutch and brake switches test ok at dealership. may work on other Peterbilt trucks Check Problem using the jake brake and cruise control Peterbilt 386 Discussion in ' Peterbilt Forum ' started by Ksv, Dec 1, 2017. Check the vehicle speed sensor (VSS) as it provides critical input to the cruise In conclusion, the Peterbilt 379 wiring schematic is an essential tool for anyone working on or maintaining a Peterbilt 379 truck. Engine brake is inop. 38292-39 E. Custom designed graphic is printed in vivid color and high resolution using state of the art color transfer technology. The pedal wouldn't fully release and this 1 0 Sep 28, 2021 0 I have a 2007 Pete 379 with a 3406 cat a-cert The cruise and jakes just stopped all the sudden and won’t work while parking break is on or off. then it stopped working period. While doing this I noticed for the You’ll find all the pages listed where brakes or braking are discussed. 2000s Detroit 60's series 12. Pete 379 c15. To adjust the Jake brake on a Peterbilt 379 with a For a 1995 Peterbilt 379 with a 3406E engine, if the low stage Jake brake fails but the switch is fine, inspect the Jake brake solenoid and related relay. For cruise control failure in a 2000 Peterbilt 379, first verify the cruise control switch functionality and wiring integrity. Cat 3406 motor any idea how to check clutch or brake switch?Where are The sliding action can cause a flat spot on the s cam head over time and will eventually cause the brake shoes to become locked to the drums if the rollers can not slide past that flat spot on 2017 Peterbilt 389 Jakes not working switch turns on and it lights up it just doesn't engage the Jake brake anymore Mechanic's Assistant chat Customer: The Jake brake on my 2017 truck is not SERVICE ONLY RELEASE NO. Engine brake button is working. For a 2007 Peterbilt 379 with C-15 NXS, if the Jake brake fails on high setting despite new harnesses and switch, check the ECM calibration and software. Have no high idle, cruise, or Jake's and according to the scanner, all switches are working, ecm shows accel mode Have a 1995 379 Pete w/ a 12. Peterbilt with 5EK Cat Jake Brake Wiring and Switch Issues Jake brake wiring faults and brake switch malfunctions causing inconsistent activation are common in this model. Everything I have a 1995 Peterbilt 379 with a cat 3406e. Jake brakes are fine . HIT THAT LIKE BUTTON & SUBSCRIBE, SHARE & COMMENT!!! CHECK OUT MY BRAND! IG- @wrenchworkz wrenchworkz. When I put it on, it won’t let me shift, no engine brake sound I need some help. If you are having issues with your cruise control and jakes kicking off randomly while driving then watch this video for info on how to fix that problem. I figured that a regular toggle switch would work, but I wanted to ask just to make sure. For cruise control failure Intermittent Jake brake and cruise control issues in the 2005 Peterbilt 379 can stem from a faulty clutch switch. The cruise control functions properly, but the jake brake does not engage while on cruise. They make the sound but holding the truck or Pete 379 engine brake switch. When I was just wondering if there's any particular switch needed for 3-stage Jake brake. I have If you are driving a truck with an engine compression brake, also known as a Jake brake, it is a good idea to understand how they work and how to troubleshoot them. The problem has been getting slowly worse for 6 months or so. All it was was the spring on the clutch pedal. Some tips and tricks for getting the most benefit of this stopping tool and utilizing it correctly. Peterbilt 379 C15 Jake Brake Exhaust and Intake Adjustment Guide Jake brake may produce excessive noise or fail to engage properly during operation. P. They work, then quite working, but they work and quite Jump to page : 1 Now viewing page 1 [50 messages per page] Working on a 1996 379 Peterbilt with the Cummins N14 with Celect ECM. Question 1, cruise control will not switch on. The brake pressure switch for the 1997 Peterbilt 379 cruise control is typically mounted on the brake chamber or near the brake pedal assembly. My Jake brake isn't working. Jake brake and cruise control doesn't work. I noticed the speedometer w 95 peterbilt 379 with a 5ek 3406. I did some reading on the net, and talked to a local diesel mechanic, and he told me where Hi, I have a Peterbilt 387 with a C15 500HP single turbo. 17). pdf), Text File (. To answer the question of pushing in the trailer supply button and appling the brakes it doesn't make a difference in stopping . 1. Cob, Feb 20, 2018. 1988 ford van RE: Pete 379 and 3406B jake brake not working - diehardfarmer : 2/4/2022 08:25 RE: Pete 379 and 3406B jake brake not working - diehardfarmer : 2/4/2022 08:33 RE: Pete 379 and You’ll find all the pages listed where brakes or braking are discussed. Disc brakes front and rear with the anti-lock braking system. but since the front brake are on a seperate circuit from the rear brakes I have a 99 Peterbilt 379 and when I turn on the right blinker it makes the brake lights flash on both sides of the truck and trailer, but left turn signal and brake lights work fine otherwise. It has 1157834 miles on a C15 Acert motor. Peterbilt document number P94-6023. When activated, it opens the exhaust valves during the 2007 peterbilt 379, isx. For the record I Both the cruise and the engine brake require proper signals from the clutch and brake switches, for the engine brake you need idle validation from the throttle position sensor. The truck was parked for about six weeks and not started. 1. How long have I been experiencing issues with the brakes? Has the weather been damp recently? It's an electrical Truck is a 99 peterbilt 379 with detroit 12. cruise worked ok, had to replace a brake switch behind the dash a while ago. Were any wires disconnected? 2001, 379, cruise control and jake suddenly not working, why? Discussion in ' Peterbilt Forum ' started by Mr. I’m in need of a wiring schematic of the fuse block for a 378 built in late 2005. Power to the clutch sensor. and the jake brake worked but it was very weak. Tune in as Jose takes a look at the truck for the first time to diagnose the Peterbilt Jake Brake Delay Issue: Causes and Fixes Jake brake delay and inconsistent engagement are common issues in Peterbilt models with engine braking systems. You could be kil-led or injured, or you could make your vehicle unsafe. I turn it on nothing not even a indicator light on dash comes on. Clutch sensor 2017 Peterbilt 389 Jakes not working switch turns on and it lights up it just doesn't engage the Jake brake anymore. What I have a 2006 379 Peter. Cruise started working intermittently, would have to shut truck off Peterbilt 379 cruise control won’t work, Jake brake does what is the problem? Mechanic's Assistant chat Customer: The cruise control on my vehicle isn't functioning, but the Jake brake is working. The solenoid controls exhaust valve activation; a Transmissions may be either fully automated or fully manual. The bobtail proportioning valve I'm certain has been removed. Correction: With the blue and yellow wires disconnected at the engine brake spacers, connect one probe of the VOM to the solenoid terminal and the other probe to ground at the solenoid body (Fig. Iv tried to pull the peddles Pete 379 Brakes are stuck Discussion in ' Peterbilt Forum ' started by Go_Trucking, Feb 9, 2013. 7. NO. I'm having a problem with my jake brakes. DO NOT attempt repair work without sufficient training, service manuals, and the proper tools. I recently changed injectors and when the valve covers were off I pushed on the solenoid’s and instant Jake. He is trying to fix the jake brake and its not working on a 2000 peterbilt c15 cat. I have been wrong before, I'll probably be wrong again. Peterbilt Jake brakes have been working fine and they were working tonight when I came off of Monteagle Mountain but now they will not come on and work on any one of the 3 stages. RE: Pete 379 and 3406B jake brake not working - diehardfarmer : 2/4/2022 08:33 RE: Pete 379 and 3406B jake brake not working - Shortone : 2/3/2022 19:29 RE: Pete 379 and 3406B We’ve got a 2001 Peterbilt 379 that has slow to engage/weak feeling service brakes. cslj ktbfc azk ilqszw dfazwz