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ABRAM BRITT BOYD Posted on Sep 21, 2013

94 Pontiac Sunbird SE 3.1L Poor Idle Quality, Hesitation, Surge, Stall

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triggeradams

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  • Contributor 31 Answers
  • Posted on Sep 21, 2013
triggeradams
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Joined: Aug 14, 2012
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Egr valve might be bad . look for cracks in the air intake tube. if hose from filter to throttle body has a crack in it it will run bad

2 Related Answers

Anonymous

  • 107 Answers
  • Posted on Jul 20, 2009

SOURCE: 1991 Pontiac Sunbird SE sometimes stall after starting

2 possable... bad fuel injector....or leaky intake gasket worst case the intake manafold is craced

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ernesto cuadra

  • 12223 Answers
  • Posted on Sep 19, 2012

SOURCE: Poor Idle Quality, Hesitation, Surge, Misfire

go to the scanner and computer test is the ONLY way that you can be shure what going on.
Suggesting to the repair shop.
God bless you

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1994 pontiac sunbird le won't start in cold weather

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I wouldn't say it's a connection between the two but if there was an electrical surge when the alternator finally went out it could have fried the ABS system/sensor
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I have a 94 sunbird it keeps cutting out when stopped what could it be the fuel pump or fuel filter someone put a bad bottle of gasline to help clean the jets

if it stalls at or near idle do this.
Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

1helpful
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1991 Pontiac Sunbird SE sometimes stall after starting

2 possable... bad fuel injector....or leaky intake gasket worst case the intake manafold is craced
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It dies when I hit the brakes, unless I put it in neutral, then dies when I put it in drive (its an automatic).

Here is the common cause of surges, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

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OBD 1 and 2 will not communicate with PCM.

a blown fuse will also cause the obd to not communicate
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