Is it possible to test fuel pressure with a tire pressure gauge?? I was told that my 98 Dakota's fuel pressure should be "45" is this correct??







.:icon_g hostie:: icon_ghostie::icon_gho stie:

 

No, fuel pressure is tested with a dedicated fuel pressure test gauge. It has a dial on it and a hose that connects to the fuel pressure test port on the fuel rail. The test port is a large Schrader valve, usually found on the fuel rail on the driver's side of the engine, near the throttle body. You can buy a cheap fuel pressure test gauge kit at Harbor Freight. They sometimes have the kit on sale for $20.00 or maybe a little more.

Sorry, I don't know the fuel pressure specs on a 1998. The Haynes Book has the correct specs, someone here probably can give you the correct specs too.

Jimmy

 

i just found out that i can get the gauge on loan at auto zone . Thank you for taking the time out to reply.