HELP! 97 pontiac blowing smoke, not acclerating
littleman2001db
08-05-2007, 12:59 PM
Hello,
weve been having problems with our 97 grand am pontiac for the longest time. It goes into random fits where it blows black smoke and wont accelerate past 30-35 mph until you floor then it eventully kicks up to speed. It also burns gas quick when it does this. No one can diagnose the problem. Weve replaced oxygen sensors and other things but it just doesnt seem to work. The weird part is that these fits are totally random and arent triggered by anything. Please help us with what this could be, weve been fighting it for years!
thnx:frown:
weve been having problems with our 97 grand am pontiac for the longest time. It goes into random fits where it blows black smoke and wont accelerate past 30-35 mph until you floor then it eventully kicks up to speed. It also burns gas quick when it does this. No one can diagnose the problem. Weve replaced oxygen sensors and other things but it just doesnt seem to work. The weird part is that these fits are totally random and arent triggered by anything. Please help us with what this could be, weve been fighting it for years!
thnx:frown:
98gpking
08-09-2007, 08:11 AM
Hello,
weve been having problems with our 97 grand am pontiac for the longest time. It goes into random fits where it blows black smoke and wont accelerate past 30-35 mph until you floor then it eventully kicks up to speed. It also burns gas quick when it does this. No one can diagnose the problem. Weve replaced oxygen sensors and other things but it just doesnt seem to work. The weird part is that these fits are totally random and arent triggered by anything. Please help us with what this could be, weve been fighting it for years!
thnx:frown:
this same thing happened to my trans am for about 7 months, then i demolished 2 pistons. so you might wanna check into it
weve been having problems with our 97 grand am pontiac for the longest time. It goes into random fits where it blows black smoke and wont accelerate past 30-35 mph until you floor then it eventully kicks up to speed. It also burns gas quick when it does this. No one can diagnose the problem. Weve replaced oxygen sensors and other things but it just doesnt seem to work. The weird part is that these fits are totally random and arent triggered by anything. Please help us with what this could be, weve been fighting it for years!
thnx:frown:
this same thing happened to my trans am for about 7 months, then i demolished 2 pistons. so you might wanna check into it
xeroinfinity
08-09-2007, 12:02 PM
Welcome to AF littleman2001db.
Has anyone done a compression or leak down test on the cylinders ??
Could be bad rings and when oil is spashed on the piston it drags excess up into the cylinders and burning it.
Could also be a partially cloged CAT Converter.
Good Luck
Has anyone done a compression or leak down test on the cylinders ??
Could be bad rings and when oil is spashed on the piston it drags excess up into the cylinders and burning it.
Could also be a partially cloged CAT Converter.
Good Luck
jp_sdmf
08-12-2007, 09:57 PM
A friend of mine had the same problem a couple years ago with a 98 Grand Am apparently it was the cat being partially plugged.
xeroinfinity
08-13-2007, 12:45 AM
Other thing, I forgot before, would be bad valve seals leaking oil into the cylinder(s).
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