Fuel Pressure test

5

Asked by Apr 04, 2012 at 04:35 PM about the 2002 Dodge Ram 1500 SLT Quad Cab SB 4WD

Question type: Maintenance & Repair

Have purchased a fuel pressure tester. Need some tips on how to use it to get a good reading, instructions are vague. do I just take gas cap of before doing the test?

1 Answer

13,265

If your testing the fuel pressure from the pump you can do that on the fuel rail on the engine. There will be a cap that screws off with a needle valve under it. You should get about 50 psi. on this one. Yes you should leave the gas cap on.

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