93 grand prix runs bad when hot

Sep 21, 2005 3 Replies

i have a 93 grand prix. when its cold it runs fine but when it warms up it acts like its missing. i found somebody else on line with the same problem. they replaced the fuelpump fuse. it didnt work for me , has anybody else ran into or across this problem?



WooHOO! My first FAQ thumper! Thanks Shep.

Hello Lapatte, Mike De Vito here, car runs fine cold, but seems to miss when warm, sounds like a vacumn leak to me, a squirt bottle filled with water, spray each vacumn line, on the engine, engine running, if there=92s a vacumn leak, engine speed will increase, then simply replace that vacumn line when the car has cooled off. Mike De Vito

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required