HESITATION

2001 Pontiac Aztek

Tiny

clarence1

August, 3, 2011 AT 1:31 PM

Any idea why my 2001 aztek would be hesitating when I slow down and go accelerate again? Because it's fine when I come to a complete stop and then take off it only happens on a basically a rolling stop.

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5 Answers

Tiny

Wrenchtech

August, 3, 2011 AT 1:47 PM

Is the engine hesitating or is it the transmission downshifting?

Tiny

clarence1

August, 5, 2011 AT 3:05 AM

No it's hesitating all most like it's going to stall out then it picks up again, but it only seems to me that it does this when the engine gets hot, I had it out today and it did not do it but I was not out long enough for it to worm up. I was also wondering if a bad body control module would cause this to happen or not, because I do know I have to get that replaced as I already checked in it to all the internal electrical problems such as the rear hatch the instrument panel lights, A/C, all do not work, also most of the warning lights in dash turn on and off and some stay on all the time.

Tiny

rasmataz

August, 5, 2011 AT 3:18 AM

http://www.2carpros.com/articles/engine-hesitates

Could be one of the following below -check and test:

Oxygen sensors.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard.

Tiny

clarence1

August, 5, 2011 AT 3:29 AM

Ok thanks, I had already thought about it being fiew of the things that you had mentioned but I just wanted to get a second opinion, I will surtenly do my home work on this one and I will let you know how I make out thanks again for your thoughts guys.

Tiny

rasmataz

August, 5, 2011 AT 9:23 AM

Keep us posted

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