how do you check it ?5.0fox said:the stock fuel pressure should be between 38 and 42 psi. you can not adjust the fuel pressure with the stock regulator.
what kinda tool do i use just a guageHISSIN50 said:there is a schrader valve behind the alt on the pass side fuel rail (it looks like a tire valve). be real careful when connecting and testing - fuel will squirt out while connecting and disconnecting and if the connection is bad, you can have a fuel leak.
good luck.
HISSIN50 said:i would use a fuel pressure gauge (stop right now - i can see you walking toward the tire gauge, figuring it will work. LOL). it will work in a total pinch, but i think having a diagnostic FP guage is a good thing to have in the tool box. they are 30 bucks or so at parts stores.
the gauge i got has fittings for several types of connections, including an adapter for the schrader valve on your stang.
good luck.
I dont need a tool to tell me that; the look on peoples' faces around me is usually a good indicator.88_GT_5_oh said:it is a good tool that can tell you right away if you are getting gas or not
When checking fuel pressure, hook up the gauge to test port with the car off. Then turn the key to the "on" position. The pump should prime and the pressure should go up to about 40-45 psi. This pressure should hold steady even after the pump stops priming. If the pressure starts to fall, then the pressure regulator could be bad or the regulator at the pump could be bad. Or in extreme cases, there could be a leak. Start the car. The pressure with the engine running will usually read a bit lower (about 5 psi) then with the car off. It should go up when the vacuum line is pulled off.westridez said:when i check do i have the car on or off
Basically, with a tester like that, I can test the fuel pressure anywhere in system (not just at the shrader valve) on practically every car on the road today. You never know what car is going to come in and if you can't fix the car, then you don't get paid.HISSIN50 said:88GT socal, it seems to me that you are in the business (based on your posts and why one might have that $$ tester). i have not seen anything nice like that - what are the good things about a tester like that?
gotcha bud. sounds like a nice piece (and probably real nice for cars with no schrader valve. making tees for banjo bolt fittings at fuel filters, etc is not cool.88GTsocal said:Basically, with a tester like that, I can test the fuel pressure anywhere in system (not just at the shrader valve) on practically every car on the road today. You never know what car is going to come in and if you can't fix the car, then you don't get paid.
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