Question about Buick Regal

1 Answer

My 1991 Buick Regal cranks right up but lopes when in idle. Shuts off sometimes in drive and reverse. But still starts right up. Recently changed spark plugs and wires, pcv valve, MAP sensor. Car runs decent in park.

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Buick Master
  • 8,557 Answers

Hi, have to checked to make sure there is PCV flow? I see you put in a new valve, but did you check it with the engine running? The hose or port may be clogged.

Please see my tip at . These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me with model, year and engine info.

Posted on Mar 15, 2011


1 Suggested Answer

  • 2 Answers

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

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer


Sounds like the thermostat needs replaced. You may also want to check you MAF sensor.

Feb 21, 2013 | 1991 Buick Regal

1 Answer

1991 Buick Ragal Custom 3.1 starts, then stalls immediately.

You need the exhaust converter so the O2 sensor can
work properly

It sounds as though the converter is blocked,as well
as the fuel trim, if that is correct term for an OBD1 System,
is not able to report back the oxygen in the failed converter

So the ecm can not provide the correct fuel mixture by
pulsing the injectors

I would also expect the timing chain to have a lot of slop
& possibly be off a couple teeth, from worm plastic gear
on cam

Sep 05, 2012 | 1991 Buick Regal

1 Answer

Have a 1995 Buick Regal 3.8L, after driving about 80-90 miles the engine stops, let it cool down and will start up and drive away, the coil packs been changed????

The crank position sensor on your 3800 sounds like it is going bad...this is sometimes difficult to show up on diagnostics...The part is about $35...location is near the main crank pulley...Hope this helps.

Mar 15, 2011 | 1995 Buick Regal

1 Answer

My buick keeps stalling on me and than starts up up when it wants to i need help lol 3.1 engine this has been the problem since i got it like 4 yrs ago and none its doing it none stop now it wont even...

Clean out intake use sea foam directions on can. This is the cheapest fix but usually does the trick.Put in gas tank as well as crank case.

May 30, 2010 | 1991 Buick Regal

1 Answer

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

Feb 07, 2010 | 1991 Buick Regal

1 Answer

Hey ive got a 1991 buick regal 3.8L just a couple questions. #1 when the car has been running for awhile Idle or driving and then been shut off when it is re started in the near future before the genine...

Get the fuel pressure checked after you change the fuel filter. The magnet on the came gear will most likley need to be replaced. The timing cover will need to come off to do this. While you are in there replace the chain, cam thrust spring and tensioner too. The cars with 3800's will usually shut off when the crank sensor gets hot after driving. Cooling it with a spray bottle of water will sometimes make them run. As for you case when it acts up spay it and see if it clears up. If so replace it. What are the engine codes? reply

Dec 13, 2009 | 1991 Buick Regal

2 Answers

1991 chevy lumina 3.1 liter.problem started it was fine then went 3 blocks and it died stopping at sign.had problems getting it back started and it drive fine for a minute and lost power to like 20 mph but...

It is one of 2 things fuel pump or Crank Shaft Position Sensor. Best bet would be the Crank Shaft Sensor, and what that does is tell the computer where the crank is and when to fire the right plug at the right time

Feb 18, 2009 | 1991 Chevrolet Lumina

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

133 people viewed this question

Ask a Question

Usually answered in minutes!

Top Buick Experts


Level 3 Expert

76846 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6918 Answers

Are you a Buick Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides