HARD STARTS (DODGE ‘98.5 – ’02)
Answer the following questions:
•
Did the vehicle start fine without the FASS or HPFP? Do you have high mileage on the
VP44? If yes, have your VP44 checked. Has the VP44 been subjected to a PSI of 5 or
less? Has the VP44 been subject to a failing lift pump? Does it occur more frequently
when the conditions are warm? Have you recently replaced your VP44? Was it used?
If yes
to any of these questions, Start vehicle as soon as you enter the key (
do not wait
for the “wait to start” light to go out
) If the vehicle starts it suggest that the problem
lies with the VP44.
•
Is the fuel pressure where it should be?
•
Has the truck had an ECM re-flash? If not, contact your dealer to find the most current
flash for your truck.
•
Do you have a WH-1002? If yes, refer to the “WH-1002” section located in “Electrical”
LOW FUEL PRESSURE ISSUE WITH DDRP
After installing your new DDRP and you find that the pressure is lower than required ( Below
12 – 14) You will find a small pressure spring , and new o-ring included in the installation
kit.
•
Remove the DDRP from the vehicle.
•
Position the DDRP in the horizontal position with the square mount-
ing plate facing in the upwards position.
•
Remove the 3 mounting screws holding the plate to the pump assy.
After removing the mounting plate you will find, an o-ring seal, a
small spring, and small check ball under the spring (do not remove
the check ball )
•
Replace the spring and O-ring. Reattach the mounting plate, paying
close attention as to not pinch the sealing o-ring. Retighten the
mounting screws to 55 inch lbs. Reinstall DDRP on the vehicle. This
new spring will increase the psi about 5-6 lbs.
