Question about 2002 Pontiac Grand Prix

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Fuel issue I have a 2002 grand prix. Lately when I drive it I lose acceration going up hills when I hit the gas pedal the RPM goes up and I still lose power. Today when I came home I slowed down on to the road and it died I waited several minutes and got it to start. As long as I had my foot on the gas it was ok, once I let up and slowed down it died again? I am assuming a fuel problem, the mass air flow was replaced a year or so ago. Do you think the fuel filter or pump? Thanks Susan

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On this on, begin by running a simple compression check on each cylinders, this comparison would tell if there is any mechanical damage to pistons, piston rings, cylinder walls, just to name a few items.
Just from the facts you have provided, I would turn away from your issue being fuel related.

Hope this helps!

Posted on Apr 29, 2012

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Yes definately sounds like a fuel problem try replacing the filter first and go from there

Posted on Jun 25, 2008


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Sometimes when driving I hit the gas pedal the car does not move it just idels then it starts to go what do you think is the problem

so the throttle fails, in Park too? or neutral or in drive.
we need to know all facts here.
the throttle adds air the EFI measures that and adds fuel.
then RPM rises, to 3000 rpm easy in park.
does it do that?
then fail to make power in drive.? power is in move car?
check fuses first.
then scan it. using any scan tool works on all USA 1998 and canada. cars.

or "then it starts to go"

my guess now is ,that car drives ok, but has a small hesitation
and has full power up any hill wide open throttle and the transmission does not slip.?
is that it?
that can be a bad TPS sensor. (hesitates then catches up)

what is the delay time, from ignoring right foot to go.
1sec, 1 minute, what?

Mar 20, 2015 | 1998 Jeep Grand Cherokee

1 Answer

"I have a 1993 Grand Prix...It chugs when in park & u push on the gas.. Aso when going up a hill it starts to chug & drops down to like20 MPH..It wont go past 20 MPH until I get over the hill, then it...

Sounds like you are getting too miuch fuel and not enough air. Try replacing your spark plugs and wires, then cleaning your throttle body. Replace the air filter too if its been awhile. This will probably fix the problem.

Aug 16, 2014 | 1993 Pontiac Grand Prix

1 Answer

Why mygas pedal vibrates

you could have a bad motor mount.

Jul 24, 2014 | 2002 Pontiac Grand Prix GT

1 Answer

Push down on gas pedal bogging then goes

It could possibly be that there is a wore spot on your throttle position sensor (TPS). It basically is connected to the cable running to the gas pedal and tells the computer how much you're pushing down on the pedal.

If you find that it's bogging down more and more often (like when you need more power climbing hills and never really gets going), it could be that your catalytic converter is clogged, but this will eventually throw some check engine lights.

Oct 03, 2013 | 1990 Pontiac Grand Prix

1 Answer

My rpm's are raising to 4000 before i reach 30 mph.and it chuggs when going up hill around 2000 rpm's.i checked the fuel filter,air filter,spark pugs and wires,coils

You have to separate transmission slippage, which
there is no fix for,from engine drivability issues

Then give us more to go on

Aug 05, 2011 | 2004 Pontiac Grand Prix

2 Answers

I have lost a lot of power in the vehicle lately. Especially driving up hills. Real sluggish. A lot of play in the gas pedal with slow engine response. When I drive on the freeway I activate the cruise...

i would change fuel filter and if that does not do it, have the fuel system pressure checked. fuel pump may be going bad and loosing pressure. let us know what happens after this. thank you

May 28, 2011 | 2001 Nissan Xterra

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Our 2002 crv starts to sputter going up hills,as if there is water in the gas. If the rpm is kept low ( under 2000) and the gas pedal is gently depressed it will keep going. If the gas pedal is depressed...

This can be Caused by Both the Fuel Pump and the Fuel Filter. If you have not Changed the Fuel Filter in a While, Try that First and see if it Helps Before going to the Fuel Pump. It is Easier and Cheaper that the Fuel Pump to Replace. Please Rate my Response, I need all the Help That I can Get! Thanks!

Jan 27, 2009 | 2002 Honda CR-V

2 Answers

Acceleration problme

I have the same car and i had the same problems
I did the same stuffs you did to try and figure it out
The answer, my friend is
My mechanic replaced the catalytic converter and WOW, it runs like a brand new car
The car was getting dangerous to drive and now you touch the gas pedal and it goes
good luck

Dec 16, 2008 | 2002 Pontiac Grand Prix

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