Question about Dodge Ram 1500
Is the fuel pressure erratic or you have done a compression check and it's erratic... also if possible test the vacuum pressure
Posted on Sep 06, 2009
Turn your key on to the acc position (where your a/c etc comes on) and off 3 times. On the third cycle any trouble codes will show on your odometer/trip display. If you get any codes let me know and I can help you with that; otherwise if your ignition system is good spark plugs, plug wires and coils and you have erratic fuel readings as you say I would first replace your fuel filter, you already know your fuel pump works.
The fuel filter
is integrated into the fuel pressure regulator which is mounted in the fuel tank. This unit is not controlled by the PCM or engine vacuum. It is calibrated to deliver approximately 35-45 psi of fuel pressure to the injectors. If the pressure exceeds the maximum of the specified range, an internal diaphragm closes to route fuel back into the fuel tank. This system eliminates the need for conventional return lines from the engine bay and accounts for the name of the "Returnless'' fuel injection system employed in these vehicles.
Fuel tank removal is required for this procedure. Also needed will be external snapring pliers and proper hose clamp pliers, such as No. C-4124 pliers (available through Plymouth/Dodge dealers), or equivalent
This is not really a hard job but more of a time consuming job you may first try a good professional fuel injection cleaning through the fuel rail before you attempt fuel filter change. If you need any more instructions with removal and reinstallation let me know and I'll be glad to help you.
Posted on Sep 04, 2009
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Posted on Jan 02, 2017
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