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Gary, Chevy Technician
Category: Chevy
Satisfied Customers: 16110
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: 1 year ago.
Category: Chevy
Expert:  Gary replied 1 year ago.
are there any codes in the computer history or current ?
Customer: replied 1 year ago.
No. In fact, there isn't an indication the bite is even working.
Customer: replied 1 year 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 1 year 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 1 year ago.
Will check injectors. No access to scan tool. Was using the check engine light flashes but that lights inop.
Expert:  Gary replied 1 year 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 1 year ago.
Thanks much!
Expert:  Gary replied 1 year ago.
anytimedont forget to rate us here at Justanswer !
Customer: replied 1 year ago.
Expert:  Gary replied 1 year ago.