94 C1500 6.5TD with no glow plugs coming on (no dash light either).
I disconnected the glow plug harnesses from the relay and tested the relay as OK (12v on GP lug as long as they are disconnected when the key is turned to start).
After disconnecting the glow plug lug, and checking resistant...
Hello all,
I've been dealing with low boost/no power for a week or so. Finally hooked up a boost gauge and went one step further by connecting a vacuum gauge to the WG actuator vacuum line.
The situation is: Truck has boost/WG vacuum as intended when cold. Eventually truck warms up and WG...