Question about 2003 Pontiac Grand Am

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99 grand an stalls after driven // replaced - fuel pump , filter , pcv valve,cams sensor, cranks sensor , humanic balencer, ignition module , throtle potion sensor ,idol poioning sensor , 55pnd presure when startn when started drops to 50 pounds, new plugs wires no codes, pass inspection? im am so lost ciol packs got 6,3 resitences like help please

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Upper o2 sensor

Posted on May 09, 2010

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What can caused my 01 f150 to die while running after started stalling?


It could be a dirty or defective iac (idle air control)valve,dirty MAF sensor,vacuum leak,defective pcv valve/clogged or leaking pcv valve hose,clogged fuel filter or air filter,defective crank position sensor,defective ignition module

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I don't think the fuel pump. Sounds like the crank position sensor. That, or the camshaft position sensor. The computer uses the cam position sensor to know when to pulse the injectors. The crank position sensor provides the information for spark timing. If the sensor fails, the computer won't signal the ignition module to create spark from the coils. Crank sensor failure is pretty common on earlier jeeps.

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1 Answer

Truck stalled out on me..i was told it could b the fuel filter, whcich i changed, i can tunr my truck on but as soon as i put it gear it stalls on me again. 2004/4.6l/65,000/frod f150


FROM LUSTY KID:

Folks, Crank Angle Sensor and Throtle Sensor need checking.
Unless you have the manual, have it analyze with the code checker, While you are it, have them check also the Mass Air Flow sensor.

By the way, check to see that the PCV Valve hose is not rotten. If Rotten, Obviously replace. Might spare you from the above.

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