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1951 Chevrolet Pickup Reg Cab Base

1951 Chevrolet Pickup Reg Cab
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February 17, 2012, 1:24 pm

Larry M
 

Question: What does it mean when my 1982 chevy 6.2 diesel stalls after a short time

i start it up and it will run for a little bit but it wont stay running


February 20, 2012, 5:46 pm

Ron W
Expert Mechanic

May be the Crank Position Sensor is not working well.

It sends out the RPM signal to the PCM. If it is bad, there is no RPM signal, and the PCM will not command the injectors to fire.

Easiest way to see if it works is to hook up a scantool and crank the engine. Monitor the datastream for RPM. If you see RPM then the sensor is working, if it reads zero RPM, then there is a problem with the Crank Position Sensor circuit.


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