My 95 ES Won't accelerate - Tach Drops
My 95 ES was running sweet up until I driven it one morning to work at hi speed and came off expressway and immediately hit a bunch of pot holes and broken ice. The car got rattled and then immediately began to act funny. When I would attempt to accelerate and she would reach about 2,000rpm the tach / engine would suddenly drop. If I attempt to push thru-it, she would pick up speed but feel like she wanted to die. However, at idle she would be fairly stable, with an occasional "miss" (post pot hole incident mind you), but seem to idle rather normally. Another odd symptom is that as I try to push thru-it the cruise control light intermittently flashes on, and off when I back off the accelerator. One mechanic said "we need to start with a tune-up" - I took it home and did the tune up (plugs and wires). Still has the problem. Another mechanic says it is in a "open-loop state" (running rich and causing some back-firing) and won't go closed loop, but doesn't throw any computer codes or check engine light. He recommends "we start with a PCM replacement". I feel uneasy about spending the $600 on a computer when he cannot even be sure it will solve the problem - and besides, there aren't any codes or chk engin light. ANY IDEAS? ANYONE EVER EXPERIENCE SUCH SYMPTOMS?
I suggested they check out the O2 sensors since my Hyanes manual makes reference to the car remaining in open loop when these go bad.