1995 Chevy Corsica no power

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Engine Performance problem
1995 Chevy Corsica 4 cyl Two Wheel Drive Automatic 185000 miles

I believe I have 1 that will stump ya, I have a 95 corsica that when you start up in the morning runs fine but a mile down the road it loses power and I mean NO power shutters and stumbles just trying to get through a redlight. Ok heres the measures ive taken so far, ive replaced the o2 sensor fuel filter all fuel injectors the catalitic converter fuel pressure regulator, complete tune up and still nothing has changed, last week I took it to a well known repair shop and they ran a battery of test from top to bottom. Found nothing wrong with the car, the mechanic went as far to ask me if I ever found out what the problem was, would I call and let him know, he was that puzzled! After almost 3 hours and not a glimpse of what it might have been. Should I just junk the car?

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have the same problem?
Saturday, May 31st, 2008 AT 7:03 AM

1 Reply

  • 17,507 POSTS

Check the EGR system, it may be sticking partially open, and or the idle air control valve. If you can scan it and read the ECT and IAT sensor info in degrees, first thing in the am before you start it, attach a scanner, tun key to on, but dont start it, read the ect and iat sensors, they should read within 5 degrees of each other, if not change the ect and retest.

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Saturday, May 31st, 2008 AT 7:17 AM

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