I have a 1993 mustang 4 cylinder. It will crank if you prime the fuel pump which is new. It runs really ruff untill it warms up then it runs fine. Can anyone tell me why?

Asked by Sep 05, 2015 at 05:07 PM about the 1993 Ford Mustang LX Coupe

Question type: Maintenance & Repair

2 Answers

20,255

run 2 cans of ZMAX fuel cleaner in the gas ...change fuel filter and check startin/run pressures..

We have a new fuel filter and a new fuel pressure regulator. Also new plugs wires starter and two new cylinoide. Even spent $528 at the shop im at a loss

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