89 gmc k2500 won't start after it warms up

Asked by Jun 30, 2015 at 05:21 PM about the 1989 GMC Sierra C/K 2500

Question type: Maintenance & Repair

Hi I have a 89 gmc k2500 5.7 tbi the truck
will start up and run once it warms up and I
shut it off it will not fire back up cranks over
fine It's got fuel All new distributor plugs
wires coil MAP sensor temperature control
sensor idle air control sensor new fuel
injectors fuel filter fuel pump at this point I
am stumped can you please help

4 Answers

1,825

Did you replace the crankshaft sensor? And pick up in the distributor?

1,825

Crank or cam sensors will sometime not work when hot.

Ok so I went to the auto parts store in my area none of them offer a cam or crank shaft sensor for my truck I was just looking over the engine to see if I can find cam or crank shaft sensor and I couldn't find anything resembling one what I did find was a broken wire off the knock sensor could that cause the problem

1,825

It might.computer needs a lot of information to run need all sensors.

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