my 1993 silverado pu will not start after it reaches operating temps

Asked by Nov 08, 2015 at 10:21 PM about the 1993 Chevrolet C/K 1500

Question type: Maintenance & Repair

the pu will start fine in the morning,but after you shut it off it wont start.it is not
getting fuel to the throttle body.i have replaced the fuel pump and filter but if
you wait 6 or so hours it will start fine thanks

2 Answers

71,345

I would start by verifying the fuel pressure, it should be 9 to 12 lbs. , 15 lbs. at a dead head check. Also may be dirty or bad injectors, they are hard to clean manually other than running a injection cleaner threw the gas...When you start the truck, have the air cleaner off and look at the 2 injectors to see if they have a nice cone shape of spray with no droplets of gas. Another cause would be that the regulator in the TBI is weak. There are rebuild kits for them. Thats why check fuel pressure while running, and at a dead head check.

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thanks

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