Question about 1998 Chevrolet C1500

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HAVE CODE P1345 IN 98 CHEVY 1500 CAMSHAFT TO CRANKSHAFT CORRELATION AND TRUCK STARTS BUCKING AND DONT WANT GO,.WHAT DO I NEED TO DO TO FIX PROBLEM? I HAVE REPLACED CAM AND CRANK SENSORS

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  • mike watson
    mike watson May 11, 2010

    which engine does your truck have?

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I have the same year truck as you do. Replaced engine last year and now this same exact thing is going on. I've talked to several people with the same problem. They have said to check the distributor and see if the bushing is worn out. This will cause the reluctor wheel to hit or miss the CAM sensor. Causing the sensor not to get the correct reading. So I took my truck to a very reputable garage, sure enough 12% difference between the CAM and CRANK sensors. Now if the distributor needs a new bushing or replaced a Automotive shop has to "relearn" the the system. After you replace either one. So that they are working together.

Posted on Feb 19, 2010

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The vortec 5.0l and the 5.7l have intake gasket problems.When the gaskets leak they cause symtoms like no power,poping from the TBI,skipping, miss firing or not firing in one or more cylinders.Its not getting the air/fuel mixture from the injectors and intake it should due to the loss of intake vacuum through the bad gaskets.Check that out and see if thats your problem,usually you'll have oil on the intake and the intake bolts will not be as tight as they should be..Hope this helps you out.

Posted on Feb 03, 2010

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