Engine Performance problem
2000 Chevy Impala V8 Front Wheel Drive Automatic 130000 miles
I have an 00 Impala LS 3.8. I had to replace the upper manifold last winter and then tuned it up. It ran fine for a while and then it would search for power for a split second. Minor at first until the car died all together on the expressway. It started right up though and would do that periodically and then it would not start back up. It would crank for a while, trying several times, and then eventually it will catch and run fine. It also will hesitate and the RPM's will go way up and down like it is choking, but all the hoses and airways are fine. This happens when I first put it into drive if it has been sitting for more than an hour. I had a recall for a spark plug wire clip and asked the mechanic what was working about it and he noticed and pointed out that one of my spark plug wires was arcing and that is likely the problem and since he didn't have that wire in stock, he put plastic insulation on it as a temp help. That completely melted and I replaced the wire. Car ran about the same and has died twice on me yesterday. I will replace anything myself, but can't afford to play trial and error or bring it in for a diagnostic test (which is usually inconclusive anyway). Any ideas on where to look next. Spark plugs again? Fuel injectors? Please any feedback will be helpful.
have the same problem?
Saturday, September 12th, 2009 AT 10:22 AM