Question about 2003 Buick Regal

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Why does my 2003 buick regal ls stop ideling afer it warms up?

When you start the car it idels for about 8 minutes then the engine starts missing badly.evenuatly the engine stalls. when the engine cools it starts runs gets wwarm and stalls again.

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  • 10,045 Answers

The automatic idle control valve may have stopped working or the control module that operates it.

Posted on Nov 22, 2016


6 Suggested Answers

  • 2 Answers

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Posted on Jan 02, 2017

  • 8 Answers

SOURCE: 2002 buick regal vibration

Could be several things, check the following: engine mounts, transmission mounts, transmission universal joints. If its not these then you may have a bad misfire?

Posted on Nov 04, 2008

  • 2 Answers

SOURCE: fans run constantly

Irwinr12 is right, no amount of fan will keep the Regal from warming up if the thermostat is working properly, Replace it. Clear SES light with OBDII tool & you should be good to go. BTY its the car computer that keeps the fans running, and they will continue to run until you clear the code. Any kind of cooling/overheating proiblem will kick in the SES light and set both fans running. I own '01 GS, my son has '03 GS and we have both complete set of service manuals. Trust me, do what I say. Batman

Posted on Mar 11, 2009

  • 107 Answers

SOURCE: 1991 buick regal starting and running problem

Sounds like your car is overheating. If you have a temp gauge it should show that. If you just have an idiot light, by the time it comes on it's already too hot to operate. AFTER the car is cooled down, open the radiator cap to see how much coolant has been lost. Chances are there is alot missing. Add WATER (no sense in adding coolant if it's going to leak out) and idle the car at home. Look underneath as it warms up to find where the leak is.

Posted on Apr 05, 2009

  • 130 Answers

SOURCE: 1994 Buick Regal Gran Sport shuts off once engine warms up.

it might be a bad ignition moduale. or could be a bad ignition coil

Posted on Jan 15, 2010

  • 10319 Answers

SOURCE: I have a 1991 buick regal stalls and shut off after warming up

egr valve is not opening up when the engine reaches it normal operating temperture

Posted on Feb 07, 2010

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Idels fine when cold if I run it about 5 miles it starts to miss end wont idel then dies

Check the ECT coolant sensor for sticking in a false low range letting engine run rich when warm. Check for vacuum leaks also.

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1 Answer

My 2003 chryler seabring water pump went out i changed it got the car back together when i first start it in the morning it idels fine then when it warms up at stops the idle go's to 800 rpm or st

OK. Nothing to do with water pump.
Recommend checking your IAC (Idle Air Control) circuit. This allows air to bypass the throttle body while idling, at stop sign, etc.
Here are a couple of links that should help you
Chrysler Sebring Idle Air Control Valve
How To Install Replace Idle Air Control Valve 2 7L 2001 06 Chrysler...

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You have a failed IAC (Idle air control valve) its on the throttle body,11_24_2012_4_07_52_am.jpg

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1 Answer

Rough idle then stalls

Vacume leak or bad idle motor. With the car in park and running with the hood open listen for leaks moving your hand around the different hoses looking for a change in the sounds that you hear. The idel motor also makes the car idel up to 1500 RPM or so right at start-up then idel down, If it doesn;t the idel motor is likly. Check engine light is on when running? Test for codes, Follow code test charts don't skip any steps!.

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Sounds like you need to service your carb as the mainjet is probably partially blocked or you have a choke thats not opening properly or a blocked filter.

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2002 buick regal vibration

Could be several things, check the following: engine mounts, transmission mounts, transmission universal joints. If its not these then you may have a bad misfire?

Nov 04, 2008 | 2002 Buick Regal

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