DIAGNOSIS OF A STUCK PARTIALLY OPEN VALVE SHOWING SYMPTOMS AND AFTER REPAIR CONFIRMATION.
GM EGR DIAGNOSIS AND REPAIR
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DIAGNOSIS OF A STUCK PARTIALLY OPEN VALVE SHOWING SYMPTOMS AND AFTER REPAIR CONFIRMATION.
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Good one from my brother, thought you guys would enjoy it.
Nice video !!! like your real world approach. did your repair also fix the
po300 ?
Well done-Thanks Danner
Good video
Add a message to your video
awesome video, so you mean if the pcm did not command open the egr the
system 02 sensor shows lean?? and when pcm command to open rich?
Engine got a knock?
Nice video I liked how you knew exactly which code to go after instead of
getting thrown off by the other ones. Hey just curious what does the
message at the end of each video mean? Is it some kind if subliminal
message?
Hey James
Can the egr valve cause a stalling problem? Can it also cause a complete no
start every once in a while? I have a 2004 silverado idling rough
Nice video Danner one day I will have to ride up and take you and your Bro
out for a beer. I know its tough for you to do videos all the time. But do
them from time to time they are appreciated. Chip from Philly
Can we get a walk around video of the nova?
Great video showing the usefulness of bidirectional controls in a scan
tool!.
Good one James.
John 20:27
Excellent as always James! I was very happy to see a new vid posted!
Thanks for taking the time to post these for everyone. Your helping more
people than you probably will ever hear from!
Nice video; clearly presented and to the point.
Nice video, thanks. If you get Clarke as official camera man I will give
you a standing ovation!
thanks
thanks
Nice video
Great video showing that you can still repair a part instead of replacing
it 🙂
why does a stuck egr would cause fuel trims to be positive? should it be
vice versa?
hi
Nicely done! I will say, from my experience as a GM tech, I have very,
very rarely seen those linear PWM EGRs fail outright. They get all
schmung’d up and stick, but the solenoid control itself rarely fails. Give
it a good cleaning, and slap it back on; you’ll be good to go. The “shaft
play” you mentioned in the video is normal. The pintle head itself is
self-centering in its seat, and is energized closed to maintain a seal, as
well as energized open during normal operation.
As a caution, however: DO NOT SOAK that style of EGR valve in any sort of
cleaner. The pintle shaft seal may as well be non-existent, and fluid both
can and WILL find its way up the shaft, eating the coating on the coil and
shorting it out.
Also worth noting: If you do replace that style of EGR valve, there’s a
99% chance you will have to run the PCM through an EGR re-learn procedure,
otherwise the thing will throw codes left and right. :-)
Good one from my brother, thought you guys would enjoy it.