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Originally Posted by fatmacsumo
please tell me your symptoms i can help you i have 24 years exp in the auto ind i need year make & model with engine size this message is for zoom
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Hi Fatmacsumo, thatīs excellent of You!
Specs:
-89 Silverado k1500
5,7L Engine
4x4 Stepside
Symptoms:
Runs great on all 8 by the sound of it. -When cold!!!
But as soon as it has reached operating temperature it starts:
When I try to accelerate it loses power dramatically and lose revv. But it doesnīt die completely. It sounds like it is beeing smothered/choked.
Brrrrrrrrr(accel.)...oouuuuhrfhrfrrfhhh...(let go)..r.r.rrrrrrrrrrrrrrrr
If I ease up on the pedal it returns to normal idle. It always starts, and idles ok. even when warm.
And it comes very abruptly. The first 5-7 minutes of driving is totally OK, and then it starts acting up. Seems like thereīs something that occurs when the engine goes into "ordinary working loop"?
After it closes off the choke, so to speak... (Iīm Swede so my english is probably not 100%...)
Someone suggested disconnecting the EGR-valve.
(The former owner said it might be faulty on my car, but I have not experienced any problem at all until now, so I never got around to check it...)
The "Check engine" light comes on every now and then, only to go out again 5 min later...
BTW It came overnight. One day it was ok, next day it was not.
Thanks again for Your input!