
2000 GMC C7500 Topkick C7H042 7.4L Crank Sensor
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...
FIX posted 2/20/2012
![]()
iATN Members:
Login to view full TechHelp request Auto Repair Pros: Join iATN to read this TechHelp request Vehicle Owners: Find a nearby iATN member to repair your vehicle (View Replies)14 Replies Received(Hide Replies)14 Replies Received
|
Message Closed w/FIX
|
VIN | 1GDJ7H1D6Y |
Engine | 7.4 L / 8 cyl / GAS |
Delivery | Fuel Injection |
Affected | Crank Sensor |
Conditions | Code Set |
Message Closed w/FIX
Vehicle Data
2000 GMC C7500 Topkick C7H042
VIN | 1GDJ7H1D6Y |
Engine | 7.4 L / 8 cyl / GAS |
Delivery | Fuel Injection |
Affected | Crank Sensor |
Conditions | Code Set |