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Gary, Chevy Technician
Category: Chevy
Satisfied Customers: 16895
Experience:  15 years GM master tech
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Chevrolet Suburban 1500 LS: My 95 sub 6.5 won't restart when

Customer Question

My 95 sub 6.5 won't restart when it warms up as well as surging at idle. I ordered a new pmd. Am I on the right track?
Submitted: 2 years ago.
Category: Chevy
Expert:  Gary replied 2 years ago.
are there any codes in the computer history or current ?
Customer: replied 2 years ago.
No. In fact, there isn't an indication the bite is even working.
Customer: replied 2 years ago.
Just some more... the truck starts well when it is cold. However when the temperature reaches 185 degrees if you turn it off it will not restart until the engine cools down.
Expert:  Gary replied 2 years ago.
any access to a scan tool to see live computer data ?when it will not start if you loosen a fuel injector line at any fuel injector when cranking it over will it spray fuel out of the line you loosened ?
Customer: replied 2 years ago.
Will check injectors. No access to scan tool. Was using the check engine light flashes but that lights inop.
Expert:  Gary replied 2 years ago.
okthe 3 big things causing this issue are usually a crank sensor or the PDM or the injection pump internal optic cam sensor built into the pumpif the fuel filter is new or newer and when it will not start and have no fuel to the injectors with NO codes then usually that narrows it down to the PDM or the injection pumpreplace the PDM if it still does this then it will need an injection pump
Customer: replied 2 years ago.
Thanks much!
Expert:  Gary replied 2 years ago.
anytimedont forget to rate us here at Justanswer !
Customer: replied 2 years ago.
Expert:  Gary replied 2 years ago.