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Re: Fuel Filter Changed
What happens when you remove air intake from throttle body & spray a little wd-40 in to the throttle body, and try to start? If it starts and runs temporarily, you've still got a fuel delivery problem.That coffee color worries me, like maybe your fuel lines etc are plugging up with rust etc, from inside tank. Have you added any fuel system cleaner to gas lately?
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Pull the plugs,see if they are black. To much gas. replace the fuel pressure regulator. If white, not enough fuel. Check the fuel filter, if dirty or rust colored replace the tank, pump and filter again.
As it cranks, is there white or black exhaust smoke ?? If yes, the fuel injectors have solid build up on the tips. Normally, a quart bottle of injector cleaner treats 20 gallons. Pour 5 to 7 quarts of fuel injector cleaner. With cold engine (been parked for at least an hour or overnight), while cranking engine, have 2nd person spray starting fluid into air filter. DO NOT PRESS ON GAS PEDAL !!! Let the starting fluid do its job of starting the car. Starting fluid is highly combustible, so its important you don't give any gas while its cranking and 2nd person is spraying into air filter. When engine starts, stop spraying starting fluid and give a little gas. If engine begins to die, immediately spray a little starting fluid again. When engine begins to run, let it run a few minutes to let fuel injector cleaner to do its job (loosen solid carbon build up on tips of fuel injectors).
If you changed the fuel pump and the fuel filter and ignitor and regulator,in the list of changes do you know you have a EFI. The EFI main relay turn on the fuel pump which includes the circuit opening relay. Testing it mainly passes with flying colors just replace
need to put a fuel pressure tester on the fuel rail to see if there is any fuel pressure. if there is then pull a plug wire off with someone cranking to see if there is spark, don't hold the end of the wire, it will shock the living tar out of you. and don't touch the car either when holding the wire. you will ground yourself. best of luck.
which gauge flickers. When last did u changed your fuel filter I usually changed it every 6 months and they are not very expensive. ONce your fuel filter is dirty eventually some debris will come out of the filter then it will go to your injectors and that is not good.