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moparfl, ASE Certified Technician
Category: Dodge
Satisfied Customers: 6330
Experience:  ASE Master Tech Gold level Chrysler Status 30 years dealership exp
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2000 dodge dakota: 4/4 with a 3.9 litre and have no fuel pressure

Customer Question

i have a 2000 dodge dakota 4/4 with a 3.9 litre and have no fuel pressure. vehicle has set for 2 years. drained gas lines and tank. have fresh gas and some one told owner that fuel pump would have to be changed. tryed to start engine befor new pump and no pressure and new pump and still no pressure. with ear to tank i can hear pump when switch is turned on and off. relays are working aleast ican feel them when switch is turned on and off and ive changed them out also. can you give me a heads up? how much pressure should i have after i get other problems solved
Submitted: 6 years ago.
Category: Dodge
Expert:  moparfl replied 6 years ago.
The spec on the fuel pressure is 49 PSI + or - 5 PSI
Customer: replied 6 years ago.
Relist: Incomplete answer.
i could have called auto parts store for fuel presure. i just threw that in while was asking other queston. why am i not getting any presure at all????
Expert:  moparfl replied 6 years ago.
The first thing to do would be to unhook the line at the pump and check the fuel pressure there to make sure it is ok. if it is then you will need to unhook the line at the fuel rail and check it.If you dont have pressure there then the fuel line is blocked and will need to be replaced.If you have pressure there and not on the fitting on the rail then the fuel rail is pluged. The why your question was stated lead me to thing all you were asking was what the fuel pressure should be. Sorry for the misunderstanding

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