1994 Chevrolet C2500 "check engine light comes" Questions

...check engine light comes on and goes off at times. I was told that it was the egr valve. I replaced it and the light still comes on. Now I was told that the ports in the intake that go to the egr ...

...but theres a check engine light comes on and when it comes on the truck shifts hard...what can it be i changed the filter and fluid and it still does it Transmission has over heated. Watch it

...and I do not get the check engine light, it seems to come on while running the interstate at the higher rpm's. Any help would be appreciated. Frank K. Hi Frank, Give me a call, 866-718-1234 ext

...check engine light comes on. I have replaced the fuel filter air filter sparkplugs and wires fuel injectors and had the timing done, any ideas on what it could be?? how about the deposits on the old ...

...a code,But the check engine light comes on once in a while Check or replace your injectors if it is a TBI, run some injector cleaner through your gas tank if you have a MFI or CSFI injection

tester on your battery and check the battery.Second I would check your battery connections if the batter checks out. Also check engine grounds. You will hear noises when re-powering up. That is normal

check engine light, then it should be scanned for trouble codes. If there isn't , then it sound like a full tune-up with proformance tests [ compression, timing, fuel pressure & volumn, etc, ] are

...check engine light. All gears shift smooth, except it goes in & out of overdrive, i can stay in overdrive if i continue to lay on the pedal, if i lay off the pedal, it goes back into drive. Now ...

engine off key off). If you have no voltage, then check the battery connections. Some GM have two large positive wires coming off the positive post. Make sure both are getting voltage. If only one has