Question about 1991 Buick Regal

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1991 buick regal 3.8l rough idle after hot soak.

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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Richie_asg1
  • 1036 Answers

SOURCE: 1996 buick regal over heating

Hi,
This sounds normal to me..... Except "runs to hot when idling"

When you're driving about (airflow over rad) all seems fine, but when sat in traffic idling - the fans come on to cool. Is the problem that even with the fans running, temperature still goes up - and fans never turn off again?

Is this the problem?

If it is, then the coolant pump may be badly corroded, not driving efficiently, or the coolant needs flushing and replacing.

Posted on Jun 15, 2008

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  • 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

honeymokey
  • 3113 Answers

SOURCE: 1991 Buick Regal 3.8L Belt Tensioner

Remove belt and unbolt center pulley bolt. I believe it's a backward theaded bolt. Turn to the right to loosen.

Posted on Jun 17, 2009

  • 2 Answers

SOURCE: ENGINE IDLES ROUGH, BUT RUNS FINE WHILE DRIVING

Check all vacuum lines for leaks. Check spark plug wires for and spark plugs that may be worn and causing idle misfire.

Posted on Aug 29, 2009

emissionwiz
  • 76164 Answers

SOURCE: I have a 1991 Buick Park Avenue. Runs rough in

Here are the common cause of surges, cold stalls, 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.
To correct this problem I want you to get a can of intake cleaner (ABOUT $5.00) from any local auto parts store like NAPA or Carquest, do not use carburetor spray, intake cleaner only or u will damage the Teflon coating inside the throttle valve and air bypass valve, 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.

Posted on May 25, 2010

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Got a Code 43 on my 1992 Buick Regal Custom.


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I have a 1991 Buick Regal. Once the car starts,and the engine gets hot, the car will die out, and not start again til cooled off.


one of 2 items are probable. have the ignition module tested. also check the crank position sensor.check for spark and injector pulse when it dies.

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ENGINE IDLES ROUGH, BUT RUNS FINE WHILE DRIVING. My car is a 1995 Buick Regal Gran Sport with the 3800 series motor with 212000 miles. The rough idle tarted after driving through some muddy and wet roads


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Aug 29, 2009 | 1995 Buick Regal

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Buick Regal problem-help!!!!!!!!


Have you done the basic maintenance. Spark plugs, oil change, ect.? As for the fans, if you have a/c one of them should only come on when your a/c is on. The other is regulated by a relay so when your car reaches a certain temp it kicks on.

Jun 02, 2009 | 1991 Buick Regal

1 Answer

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.

Apr 05, 2009 | Buick Regal Cars & Trucks

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Car problem with 91 buick regal


Replace the timming chain, gears, and magnet. With that cat getting that hot it has to be out of time. When the cam sensor picks up no signal, ecu can't control timming and reverts back to a preset,fixed base # .

Feb 01, 2009 | 1991 Buick Regal

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