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#1
06-18-2006, 05:41 PM
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Mechanic didn't know
I have a 98 monte carlo and am currently having erratic problems. It seems like once a week or 2 my car is almost undrivable. It will cut out really hard once I accelerate. It will feel like its running out of gas but it seems to cut out even harsher than that. I had a few mechanics drive it while it was acting up but they were puzzled. No codes coming on a diagnostics. They believe its an electric problem but don't really know any input would be great thanks in advance
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#2
06-18-2006, 05:56 PM
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Re: Mechanic didn't know
The vehicle needs to be driven with a fuel gauge and a scan tool and watch what the fuel pressure does when this happens and also need to watch data on a scan tool. Watch for a sensor sending skewed info back to the pcm or dropping out. Not always will a sensor set a dtc.
__________________
ASE Master ASE Advanced Engine performance GM World Class Technician 1978 Pontiac Trans Am 1984 Monte Carlo SS 1991 GMC C1500 2002 Pontiac Grand Prix
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#3
06-21-2006, 01:57 PM
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Re: Mechanic didn't know
Does the tach needle drop to zero and the abs/trac off lights come on when it does this? If so, its a classic sign of a screwy crank position sensor.
__________________
 Still waiting for the "good old days" I'll get to bore my future grandchildren with!
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#4
06-21-2006, 02:09 PM
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Re: Mechanic didn't know
It would be helpful to post your engine size, 3.1 or 3800 and the mileage.
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'08 Pontiac Grand Prix GXP (Dark Slate Metallic) - LS4 5.3L V8 '02 Oldsmobile Alero GL2 - LA1 3400 V6 '99 Buick Regal LS - L36 Series II 3800 V6 '03 Honda CR250R MX - 2 Stroke 250cc '97 Pontiac Grand Prix GTP - L67 Series II 3800 V6 Supercharged (Sold) Timeslip 08/12/06 AF Community Guidelines
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