I have a 1996 buick regal with the 3.8 engine. My problem is after running the car and the engine is warm (normal) and I shut the car down, if I start the car in 15 or 20 minutes the car starts fine. If I wait 30 ro 40 minutes the car will not start. It turns over easily and seems like it is starving for fuel. I pop the hood and wait about 15 or 20 minutes it starts right up and runs fine. I drove 900 miles with not problems as long as I didn't leave it sit for more than 20 minute or so. Any suggestions? Thanks in advance..

Question 1

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'92 Buick Regal, 47k miles, alwaya reliable, but yesterday shut off engine when warm, then restarted, car backfired and blew off hose to brake booster. Would not restart immediately. When did rest

Replace the crankshaft sensor and the cam sensor. I had the same problem. Good luck.

Feb 10, 2012 • 1992 Buick Regal

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I have a 94 Buick 3.8L car, it idles to fast. When you do a cold start and put it in gear, it will not idle down to normal. It will idle about 2000-2500 rpm. You can shut off the engine and restart it and...

It sounds like your idle control valve is sticking. The video shows you where they are located on a 97 Buick but it is the same engine.
This video shows you how to replace them.

Nov 29, 2017 • 1994 Buick Regal Gran Sport

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My 1991 Buick Regal (3.1 engine) use to start a high RPMs and then slowly, as the engine warms up, the RPMs would come down to about 800, which is the normal. However a few weeks ago, it started to start...

Hi,
You need to get your engine coolant thermistor checked and tested. This is what tells the ECM when the engine temperature is at normal working temperature and turns the idle down.
But when the idle won't come down from cold to warm this is usually the main fault.
Hope this helps.
Thanks
Jason

Jan 28, 2011 • 1991 Buick Regal

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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

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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

Jan 15, 2010 • 1994 Buick Regal Gran Sport

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'96 buick regal- heater not producing warmth. fan blows fine and i did check passenger temp contol(set all the way warm) with no results. next best check???

Check the temp of the heater hoses going into the heater from the engine in the engine compartment.
If you have a temp gauge on the dash does it go at least 1/3 the way up the gauge from cold in normal driving.
You can take a garden hose and flush the heater....both ways back and forth then reconnect heater hoses and check for heat.
But.....The # 1 cause of no or low heat is the engine thermostat.
It needs to close tightly to force the engine coolant through the small heater core.

Nov 10, 2009 • 1996 Buick Regal Olympic Gold

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99 Regal Shuts off w/ engine at normal temp. Starts when cooled.

sounds like it's tied into the coolant system..

Sep 09, 2009 • 1998 Buick Regal

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98 Buick Regal -engine quits

ok its one of two things you need to check when it cuts off if you have spark or fuel if you lose fuel pressure replace pump it gets hot and makes noise like its running but its not pumping fuel and if you lose spark you need to replace ignition control module has a hair line crack in it and when gets hot the crack expands and loses contact and wala no spark

Aug 15, 2009 • 1998 Buick Regal

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1996 buick regal knocking noise

The intake may be leaking coolant into the crankcase. This can cause the lifter to bleed down also.

Apr 05, 2009 • 1998 Buick Regal

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99 buick regal 3.8 starts for 3 seconds and shuts down,

Had the same problem drove me nuts until I tried disconnecting Mass Air Flow Sensor, the car should drive normally but with a "Service Engine Soon Light" on. Mass air flow can run from $140 up, picked one up at recycler for $40.

Worth a try.

Mar 01, 2009 • 1999 Buick Regal