P129f chevrolet

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Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. Look at the dash and sure enough, the check engine light is on. No idea what that means, but will call the dealer tomorrow and get it in to be fixed. Will let you all know how it goes.

P129f chevrolet

From buying research to owner support, join 1. I got a Chevy HD with the duramax 6. You can post now and register later. If you have an account, sign in now to post with your account. Paste as plain text instead. Display as a link instead. Clear editor. Upload or insert images from URL. By Jettech1 Started February By jd64 Started August 17, By diyer2 Started March 14, By using this site, you agree to our Terms of Use. Sign up for FREE! Become a GM-Trucks. Sign in with Facebook.

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The most common cause of this issue is a faulty Fuel Pump and Level Sensor Assembly, but it can also be due to an open or shorted harness, poor electrical connection, or a faulty Fuel Pump Driver Control Module. To fix this problem, you should visually inspect the wiring harness and connectors for any damage. When the engine light is on or the service engine soon warning light is illuminated, it could be a sign of the pf fault code. The automobile fault code PF can be caused by a faulty fuel pump and level sensor assembly, an open or shorted harness, a poor electrical connection in the circuit, or a faulty fuel pump driver control module. To fix the automobile fault code pf, start by checking the possible causes and visually inspecting the wiring harness and connectors for any damage or corrosion. The automobile fault code PF diagnosis and fixing cost is influenced by the estimated repair time of 1. The DTC will be triggered if the difference between the commanded and actual fuel pump speed is outside the calibrated range for more than 7 seconds.

P129f chevrolet

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. It still runs but you have to feather the throttle to get it up to speed. It also goes into a reduced power mode. I have read that there may be some wiring issues to the lift pump. It seams that the lift pump is making a strange noise during the initial key on 30 second run time. I have also read up on the lift pump but it is some kind of 3 phase variable speed pump that I am not familiar with.

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General Discussions Sort by Oldest first Oldest first Newest first Most reactions. Lee F 39 Replies. Become a GM-Trucks. Stay Tuned Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! I just did this today and if anything, else comes up with it I will post. Sort by Oldest first Oldest first Newest first Most reactions. Look at the dash and sure enough, the check engine light is on. Hi I got a Chevy HD with the duramax 6. Upload or insert images from URL. Log in. Will look forward to the resolution. Last saturday when i turned my car on it made kind of a knocking noise but sounded like it was coming from the back.

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I got that message from GMC and my check engine light came on. Posted July 31, Insert Quotes Quotes Post Reply. Log in. This is an older thread, you may not receive a response, and could be reviving an old thread. Said the car only needed a system update for the ecm. JavaScript is disabled. I have not looked to see if you can find the module online as this is my work truck and I had to get it back up and running quickly. It's a crew cab. They have to order in a new one for me they don't have them in stock and expect it to take about a week to arrive. Did my research and found that it was the fuel pump control module. Go to topic listing. Sign in with X.