Question about 2002 Pontiac Grand Prix

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Engine produces little power on acceleration and difficult to achieve over 60 kilometers per hour. Flutters a bit on accelerations

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1st question - when was last tune up? Plugs, wires, cap, rotor, all fluids & filters including fuel filter. I'd start there and run a good fuel system cleaner through it. Another thing to watch for that Pontiacs are notorious for is timing chain & gears going bad. Right about 70k-90k you're in the "dark zone" and they give little or no warning. You might consider changing them out also.

Posted on Mar 24, 2011

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Posted on Jan 02, 2017

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After driving through standing water, check engine light flashes, flutters loud upon acceleration, but doesnt lose power. Idle is a little rough.


You need to STOP DRIVING THE VEHICL AND GET THE ENGINE CHECKED. If any water has entered the engine you will destroy it by using it, this could be very costly indeed if you ignore the warning. Engines work by comressing fuel/air misture, water cannot be compressed, it will destroy the innards of your engine
SEE A GOOD MECHANIC ASAP WITHOUT DRIVING THE VEHICL


Good Luck

Jun 11, 2015 | 2001 Ford Windstar

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2003 blazer p301 code ive changed coil plugs check engen still flashing when accelerating


The flashing light means the problem is serious enough to damage the catalytic converter.
The code means cylinder 1 is not producing power. So it could be fuel, compression, or ignition related.

Feb 05, 2014 | Chevrolet Blazer Cars & Trucks

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Low power and acceleration


Possibly timing belt is off a tooth or more , possibly fuel filter

Nov 06, 2012 | 2002 Hyundai Santa Fe

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2001 Mazda MPV, 2.5L eng. During accelerating on to highway, van lost power. Van continued to operate but with little power available. I have no engine light and my code "checker" shows PASS (no...


looks like not enough fuel pressure, check the fuel filter.
and the fuel pump pressure.with car running 60 psi
the pump is located at the rear seat driver side you have to remove the carpet to access the cover. if the fuel pressure checked "OK" suspect defective maf sensor (sometimes defective maf sensor do not show errors codes)another way to test is disconecting the maf sensor and start the car (computer goes to limp in mode) and works little better,or check by scanner idle= low grams per seconds and increase when accelerate.

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1 Answer

Vibration on acceleration


Take the car to have the tires rotated and balanced. That should cure the problem unless the brake rotors are warped.

Dec 03, 2008 | 2004 Nissan Maxima

1 Answer

Transmission Vibration i think


it could be from slightly bent axles or bad suspension such as tie rod ends or ball joints but I would lean towards axles if only certain speeds.

Jul 03, 2008 | 1992 Mazda 626

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