CLEARING CODE

JIM BRENNAN

MEMBER
GMC C1500

I HAVE A 4X4 GMC 1996 V8 AUTOMATIC. I HAVE A CODE P1345 CAM TO CRANK CORILATION FAULT MISFIRE. I HAVE INSTALLED NEW PLUGSWIRES, DISTUBUTRE MODUAL, CAP ROTOR, CRANK SENSOR AND STILL CAN'T GET THIS THING RIGHT. IT WILL START BUT WHEN GIVING IT GAS UDER LOAD IT HESITATS POPS AND THEN TAKES OFF OK.
THE CODE WILL CLEAR AFTER LIFTING THE BATTERY LEADS BUT KEEPS COMING BACK.
IM LOST?

3 Replies

BLACKOP555

MECHANIC
10,371 POSTS

HOws the timing belt/chain look? Is it really loose? It may be off a bit causing this error to occur. Check to see if the car has jumped time.

Put #1 cylinder to TDC then check to see that rotor is pointing to that wire, if its not then the car has more hten likely jumped time.

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Tuesday, November 27th, 2007 AT 7:17 PM

FITHGEAR

MEMBER
5 POSTS

I am having similar problems with my 1999 GMC Truck 5.0L V8. The Haynes Manual says that a "Crankshaft Position Sensor Variation Learning Procedure" should be done anytime the Crankshaft Position Sensor is disturbed. This is done with a Tech 2 scan tool by a dealer. Takes about 20-30 minutes. I did this but unfortunately it did not fix the problem. Did you buy the Crankshaft Sensor at the dealer or at an auto parts store. I bought mine at an auto parts store, and I think they may have sold me the wrong one. I am not sure of this yet, so, if you have fixed your problem already please let me know what you did. If I get mine fixed I will let you know what I did. By the way, this site gives some realy good advice and information, so listen to the experts here.

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Tuesday, January 29th, 2008 AT 7:45 PM

BLACKOP555