Question about 2005 Buick LaCrosse

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Stalling no codes after car sits for hours

Stalling after starting the car when car sits for sometime ,usually over nite 8 to 10 hrs, Reduced power and system disabled flashes on when car stalls . By turning key on and off,after car stalls, when you see the odometer numbers the car will restart. Car may stall two to three times but once it stalls one to three times car runs fine. Cleaned all ground connections and replaced the battery so far. Had the car on several different computers and no codes have come up.

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STALLING IS USUALLY, CONTAMINANTS IN THE FUEL. CHANGE UR BRAND OF GAS, TEXACO FOR SHELL....PROBABLY A BAD BATCH. FILL THE TANK UP AND ADD A GOOD QUALITY GAS TREATMENT, LIKE STP. FOLLOW THE INSTRUCTIONS ON THE BOTTLE. ALSO A PLUGGED FUEL FILTER. THE FUEL FILTER IS PROBABLY ATTACHED TO THE FUEL PUMP INSIDE THE GAS TANK. IF THATS THE CASE, ITS A TRIP TO THE MECHANIC.

Posted on Feb 07, 2010

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Posted on Jan 02, 2017

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1 Answer

Starter


Well the starter won't cause the rough running or stalling problems.
You would need to know if the starter has full battery power when it will not crank without being jumped off another battery.
It could be that the battery voltage drops low enough to affect the computer memory, and after the engine starts the computer has to re-learn the settings.

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Car stalls, will usually restart after sitting a while


Seeing as how you had a check light on,
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Sounds like a bad fuel pump on the stalling or
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Replaced engine in 1998 dodge stratus. Seemed to run fine after that, but started not wanting to start after being parked and then stalling while driving and then not wanting to restart until an hour or...


Hi,
Very common symptom for a bad crankshaft position sensor. There is a testing procedure for the sensor, but it can give false readings or good readings while testing with engine off and cold. Usually they fail and give erratic reading when they get hot, but then it is virtually impossible to test. Kind of a catch 22. Replacement is fairly easy. They will sometimes give you a check engine light and subsequent code, but not always. I have had 3 cars do the same thing and it was the sensor each time, so if I were you, I would replace it and see if that helps before assuming there is another ignition or emissions problem.....Did you check your computer for trouble codes? Please reply if you have any and / or if you need instruction for do-it-yourself replacement....Mike

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Stalling while under power. Won't start right


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I will advice that you replace the fuel pump and see that the rating is the recommended pressure with the former.

I hope this will help you.

Good luck.

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My 1996 Oldsmobile 88 stalls when I'm driving


sounds like there's too much of a load on the engine. try a complete tune-up.

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Stalling when engine temp reaches 160 degrees


Here are my theories

Idle Air Control valve (IAC) - allows a small amount of air to pass though throttle body at idle since the butterfly in the throttle body is closed at this time - if this doesn't open the vehicle will stall

Air Intake Temp Sensor - Helps correct air fuel ratio by measuring the temp of the air coming through the intake

Oxygen Sensor - Largest determinate of air/fuel ratio after the vehicle almost reaches operating temp which is approx 160 degrees

Coolant temp sensor - Largest determinate of the air/fuel ratio from cold up to the point when the oxygen sensor takes over

EGR Valve - 5.2 Liters are known for these failing, they redirect a small amount of exhaust gases back into the intake manifold for re-burning (emissions thing). Sometimes they get stuck closed and allow for too much exhaust gas back into the manifold. But usually this would cause very poor performance as well as shuddering and stalling

Use what you know about your condition and what these common fail items are and see if any of them sound like the problem

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