car has no power

[tcorb99]

Have a 2002 G.A. GT 3.4L at idle would flutter from 500 to 1100 Rpm, and when driving would hardly go down the road.Would bog down when accelerating. so I changed the throttle position sensor. and it didnt solve the problem. did fix the fluttering idle. anyone have any ideas?

[GTP Dad]

Welcome to AF!!

You don't say how many miles on the car but this sounds like a problem with the catalytic convertor to me. Does the engine rev when you are trying to drive it or does it fall flat like it won't rev up. If so then the cat is the problem. If the engine revs but the car doesn't want to move then the issue is with the transmission.

[tcorb99]

Had car hooked to scanner it says it is the mass air flow sensor.thanks for reply I was thinking it may be the cat also but wasnt sure

[matt66]

hi my names matt well i have a 1994 grand am it starts but when i start it the car acts like it wants to bog out .... i replace the converter on it and it still does this., and i was woundering if it could be the iac vavle or the tps sensor on it ,when i go to put it in drive the car has no power at all and takes forever to get up to speed ....

was wound if u know what it could be u can contact me at [email protected]
thanks very much ////

[chiropeeps]

i dont know if this will help but i have a 93 with 3.3 and my car was hesitatinig off th line wiould feather the pedal and would go. usally got better when car warmed up. i took off the mass air flow sensor,unplug first get a can of crc mass air flow cleaner($7) spray little filaments on under side of mas,mine were all carboned up ,10 sprays later clean and shiny,reinstall it is like i have a brand new car,throttle response and idle are perfect hope this helps.

[xeroinfinity]

matt66 & chiropeeps, please look at the dates before posting in outdated threads!!!
This is pointed out clearly in the Community Participation Guidelines.

If you need assistance, please post your own topic thread!

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