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2000 GMC C7500 Topkick C7H042 7.4L Crank Sensor
Posted to GM Engine on 2/19/2012 14 Replies

I put new engine in this truck and when engine is cold it runs perfect, but when it reaches normal operating temp it sets a crank code po336 and starts to backfire through exhaust. at one point the converter started to glow and flames were coming out of the ta...

14 Replies Received (View Replies)

  Related Documents & Media  2000 GMC C7500 Topkick C7H042

 
Message Closed w/FIX

car Vehicle Data

2000 GMC C7500 Topkick C7H042

VIN 1GDJ7H1D6Y
Engine7.4 L / 8 cyl / GAS
DeliveryFuel Injection
AffectedCrank Sensor
ConditionsCode Set
Message Closed w/FIX

car Vehicle Data

2000 GMC C7500 Topkick C7H042

VIN 1GDJ7H1D6Y
Engine7.4 L / 8 cyl / GAS
DeliveryFuel Injection
AffectedCrank Sensor
ConditionsCode Set