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95 Grand Am 2.3L stalls after warm-up


reyes45's Avatar
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01-23-05, 08:11 AM   #1  
95 Grand Am 2.3L stalls after warm-up

This Grand Am starts and runs fine but after driving for about 20 minutes it stalls. It starts right up but after 15 or 20 minutes stalls again.
It also stalls in park immidiately after reaching 4000 rpms. Changed fuel pressure regulator,ignition module and tps with no results. Any info is appreciated. Thanks.

 
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01-23-05, 08:21 AM   #2  
EclipsemanUSA
reyes45,

What engine are we talking about the 2.3L or the 3.1L?


Last edited by EclipsemanUSA; 01-23-05 at 08:38 AM.
 
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01-23-05, 08:52 AM   #3  
Grand Am 2.3L stallsafter warm-up

Grand Am is equipted with a 2.3 litter Quad four engine.

 
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01-23-05, 09:58 AM   #4  
EclipsemanUSA
reyes45,

I would begin with the Idle Air Control (IAC) valve, remove and inspect, be very careful not to bump the pintle needle as it may ruin the worm gear.

 
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01-23-05, 11:40 AM   #5  
shoudn`t the IAC valve trigger check engine light if it was foulty.

 
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01-23-05, 01:30 PM   #6  
EclipsemanUSA
No, just completed work on a Buick with a stall problem when warm, found to be the IAC with no check engine light.

 
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01-23-05, 02:16 PM   #7  
I wouldn't be jumping to those conclusions yet. Start out by cleaning the throttle body, checking the fuel pressure on the highway and checking for any vacuum leaks.

 
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