Question about 2002 Buick LeSabre

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2002 Regal - Engine kills right after starting cold.

Everytime we first start our 3.8 engine, it kills, then it usually restarts fine and runs good. If you catch it by pushing down the throttle right when you start it, it may continue to running without killing.

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  • jesse777 May 11, 2010

    Hi,



    Has your fuel pressure regulator ever been replaced, perhaps under recall?



    Try holding the accelerator to the floor and starting the engine? Does it start more quickly and continue to run?



    Does the check engine light remain on at anytime while the engine is running?

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There are 3 things that cause this, 1st and most common is a dirty idle speed control valve, 2nd is carbon on the back of the intake valves, last but not least is the wrong octane of fuel, if it requires 89 Octane and 91 or 92 is used the engine will stall code.

To clean the dirty idle control valve follow this procedure:
Here is the most common cause of surges and stalls, it is the idle speed control air-bypass valve and throttle valve, they get full of gunk over the miles and cause idle issues (stalls) 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.

Posted on Nov 22, 2008

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Car won't start


old post , no year car, 1989 to 2002
there are 3 engines, 2 up to 1998. all made by toyota
overheating is it,
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if loosing coolant that is #1 above all else. find cause.
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Hard Start When Cold 01 Bucik Regal


Did you check the fuel pump relay ?
You would need to use a fuel pressure gauge and check pressure before you crank the engine.
When you turn the key switch on, the pump relay is supposed to provide power for 3 seconds to boost fuel pressure.
If fuel pressure is ok, the coolant temp sensor could be telling the computer the engine is warmer than it really is.

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93 toyota pickup 4x4 it will stay running after I turn it on to start it up, it starts up then after a few seconds it kills


if I'm reading this right...
... the engine starts and dies within a few seconds.
... you jumpered the fuel pump test connector and it will keep running.
... you smell fuel after trying to re-start when it dies.

Disconnect the plug to the cold start injector. Even if you have an issue with the engine running then dying after a few seconds after doing this, if you don't smell fuel after disconnecting the cold start injector and try to restart it, the cold start time injector time switch may be failing.

Buy a can of starting fluid and have someone start the engine then spray short bursts of the fluid around all the intake fittings. If spraying the fluid in any particular area keeps the engine running, I'd start looking for leaks around that area.


It does sound like an AFM or COR issue considering it dies after a few seconds, but the fuel smell when trying to restart the engine may be a separate issue that needs corrected / isolated first.it will keep running.

... you smell fuel after trying to re-start when it dies.


Disconnect the plug to the cold start injector. Even if you have an issue with the engine running then dying after a few seconds after doing this, if you don't smell fuel after disconnecting the cold start injector and try to restart it, the cold start time injector time switch may be failing.


Buy a can of starting fluid and have someone start the engine then spray short bursts of the fluid around all the intake fittings. If spraying the fluid in any particular area keeps the engine running, I'd start looking for leaks around that area.


It does sound like an AFM or COR issue considering it dies after a few seconds, but the fuel smell when trying to restart the engine may be a separate issue that needs corrected / isolated first.

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I have a 1995 Buick Regal with a 3.8 V6. Car will start just fine on a cold start but will not continue to run unless you hold the engine on at least 3000 rpms for about 30 seconds. it will then idle just...


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Is the check engine light on?

When was the last time you had a tune-up? if recently what brand of plugs where used?

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