Join Date: Aug 2005
Location: Zephyrhills, Fl
Feedback Score: 0 reviews
Re: 1996 GMC 6.5L Diesel troubleshooting
FSD/PMD, little black box on the side of the pump. Normally the pumps are fine and they get prematurely changed due to a bad FSD/PMD. They make it very hard to start and stall frequently. Also check your lift pump, the oil pressure switch that activates the lift pump is a royal PITA. Try the dieselplace, they are geared towards the GM and you will get straight answers not trade it in.
1995 K2500 diesel suburban, BANKS stinger kit, Quadzilla guages, 97+ cooling mods with D-max fan, remote PMD with #9 resistor
1988 JEEP CHEROKEE, 4.0L, 4X4, auto, mostly stock(keepin the miles off the diesel)