non buick: can anyone help me w/ my 3.3L V6???

[fireberd350]

i have a 93 grand am gt that i am trying to sell, i borrowed money from my parents for the GN and i need to sell the pontiac but its running like crap....the idle goes up and down and up and down and occassionally stalls.....its a 3300(3.3L) pontiac...its only got 60k on it and it pisses me off how bad its running....

also it only does it in park or neutral....its fine in drive or reverse....

any ideas would be appreciated....i need to sell this thing!!!!

 

[fireberd350]

any1?

 

[arista5]

Maybe this can help you

http://www.gaownersclub.com/

its a board like this for Grand Am Owners

 

[blackbuick87]

Probably has a vacuum leak. Does it stumble on acceleration also?

Check all vacuum lines and try spraying WD40 around the intake manifold base. May need a new manifold gasket