Check the fuel pressure with a fuel pressure gauge. If pressure is good then fuel pump is working. If bad then fuel pump may be the culprit. Only way to tell is to remove pump and supply 12 v power to it.
For the fuel filter
This procedure requires the use of tool J-46363, Fuel Line Release Tool, or equivalent.
Disconnect the negative battery cable.
Relieve the fuel system pressure.
Raise the vehicle.
Remove the fuel composition sensor bracket nuts and reposition it aside.
Clean all the fuel filter connections and the surrounding areas before disconnecting the fuel pipes in order to avoid possible contamination of the fuel system.
Using a flare nut wrench and backup wrench disconnect the fuel line fitting from the fuel filter.
Use the Fuel Line Release Tool, J-46363, or equivalent to disconnect the quick connect fittings as follows:
A. Pull the quick connect fitting back until the internal retainers hit the filter stop.
B. Twist one end of J-46363 and insert it between the fitting and the filter
C. Twist the opposite end of the tool and insert it between the fitting and filter
D. Once tool J-46363 is inserted, make sure it is parallel to the filter and fitting.
E. While holding the filter, push the fitting toward the filter in order to disconnect the quick connect fitting.
F. Remove the fitting from the filter. Remove the tool from the filter.
Slide the fuel filter from the bracket.
Inspect the fuel pipe O-rings for cuts, nicks, swelling, or distortion. Replace the O-rings if necessary.
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Tuesday, January 5th, 2010 AT 12:10 PM