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#1
08-28-2008, 08:46 AM
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Possible Fuel Pump Problem
I own 2000 grad prix GT, When im going highway speeds and a near floor the gas pedal the engine start cuttin out choppin hard and RPMS jump high then low it gets really un stable only at high speed this occurs...is that fuel pump...Cars runs flawless lower speeds.
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#2
08-28-2008, 09:04 AM
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Re: Possible Fuel Pump Problem
Welcome to AF.
Your post has been moved to the regular part of the Grand Prix forum.
__________________
'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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#3
08-28-2008, 11:18 AM
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Re: Possible Fuel Pump Problem
From the vague symptoms, my first thought was a sticking TCC solenoid not allowing the torque converter to unlock. To accurately help you, we will need more info, and doing a fuel pressure test wouldn't hurt to help rule out the fuel pump.
__________________
 Still waiting for the "good old days" I'll get to bore my future grandchildren with!
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