What kind of gas tank does a 1987 GMC half ton have?
Discussion in ‘ 1973-1987 ‘ started by Guam52, Jul 1, 2007 . I have a 1987 short bed GMC half ton 4×4. The passanger side tank works fine. As soon as I switch over to the drivers side tank the truck shuts off. I would appreciate and ideas on this, before I dive into it face first.
What does the fuel tank selector switch do?
If your vehicle has dual fuel tanks, this switch allows the vehicle operator to switch between them by operating the valve between the tanks. This original equipment fuel tank selector switch has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.
What happens when you turn off the relay on a gas tank?
Contacts in this switch close and send 12 volts to the fuel pump. The system will stay in this configuration until you turn the key off or the engine looses oil pressure. The 3 second operation of the fuel pump by the relay is to prime the fuel system, this makes the engine easier to start.
Why is my gas tank missing on my 1987 car?
Bad selector switch in the dash. Ground is missing on the tank. The large O ring that seals the sender unit in the top of the tank also electrically isolates it from the tank and the rubber straps that hold the tank in place isolates it from the chassis.
Discussion in ‘ 1973-1987 ‘ started by Guam52, Jul 1, 2007 . I have a 1987 short bed GMC half ton 4×4. The passanger side tank works fine. As soon as I switch over to the drivers side tank the truck shuts off. I would appreciate and ideas on this, before I dive into it face first.
If your vehicle has dual fuel tanks, this switch allows the vehicle operator to switch between them by operating the valve between the tanks. This original equipment fuel tank selector switch has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.
Where is the pink wire on a dual tank switch?
In the middle of a rebuild. The issue I have is, I omh’d out the Pink wire off the dual tank selector switch on the dash to a Pink wire in the engine compartment off the bulkhead connector. The connector on the end of the Pink wire in the engine compartment is missing, the end of the Pink wire is a single female spade connector.
Is the selector switch on a truck modified?
The selector switch in the truck looks to be the original harness and not modified. Any suggestions would be great. I’m thinking something somewhere has been changed electrically, but I can’t find any troubleshooting data on it.. (eg. ohm reads…..)