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re: OT Mechanics: 2000 GMC Sierra 6.5 Diesel won't start
Posted on 3/4/14 at 11:05 am to prairiedog
Posted on 3/4/14 at 11:05 am to prairiedog
Did you check the lift pump? A 6.5 will start on a very dirty fuel filter. There is module attached to the intake manifold that can cause starting/stalling issues when it starts to fail. GM, in their infinite wisdom, decided placing a heat sensitive part in a hot location was not a bad idea. Common fix is to buy a new module, lengthen the wiring harness, and mount the new one behind the head light housing.
1
Posted on 3/4/14 at 11:28 am to Clames
quote:
Did you check the lift pump? A 6.5 will start on a very dirty fuel filter. There is module attached to the intake manifold that can cause starting/stalling issues when it starts to fail. GM, in their infinite wisdom, decided placing a heat sensitive part in a hot location was not a bad idea. Common fix is to buy a new module, lengthen the wiring harness, and mount the new one behind the head light housing.
I think you are talking about the PMD (pump mounted driver) sometimes called a FSD . I am pretty sure that this is his problem. Pretty easy to change it out and relocate it like you said.
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