Question about 2000 Pontiac Bonneville

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Car chugs while accelerating. changed spark plugs and wires, fuel pressure regulator, and fuel pump could this be a bad coil pack

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Yes it could , try having the computer scanned for any codes and see if theres a misfire code, if it where a coil there should be a misfire code with the cylinder thats missing then you will know which coil it is, also the fuelpump is pushing enogh preasure? low preasure would cause this also. try the codes first, autozone parts store scans for free. hope this helps.

Posted on Aug 27, 2010

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Posted on Jan 02, 2017

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My daewoo lanos 1999 model can start and drive it has no power if you try to accelaret the car then cut off or just reduce the speed whats the problem


Walter: The most common cause of acceleration issues lies in the transmission. However, 2CarPros.com suggests:
Inspect and test all the following:

Oxygen sensor.
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1 Answer

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Check spark in each cylinder. You may have a bad plugwire or coil pack. Make sure fuel is spraying from every injector.
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Sounds like the fuel pressure regulator. Could also be that the timing jumped. But I'm leaning towards the pressure regulator. Hope that I could help. Best wishes.

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