Fuel pressure

FORD ESCORT

FADO22

MEMBER
1 POST

I have a 1998 ford escort lx 2.0 sohc with 57,212 miles with and auto trans .Everytime I start the car it seems to crank awhile and then starts. I went and changed the fuel filter and same thing so I checked the fuel pressure and it was zero when I turned the key on the pressure goes to 34psi and with the engine running it has 36psi at idle as soon as i shut the car off the pressure drops to zero. I checked a couple of books and i am getting different pressures for this car some say 36 to 40 psi and others says 55 to 85 psi. Now I am some what sure I asked a couple of friend mechs and they say the pressure should hold so everytime the car restarts it doesn't have to build pressure in the system for a easy restart. but nobody can give me the exact answer if the pump should hold pressure what is the pressure??
Any help please.

Aug 9, 2007 at 12:59 PM

RASMATAZ

✓Experienced Mechanic
75,992 POSTS

[quote:028b0d8115="fado22"]I have a 1998 ford escort lx 2.0 sohc with 57,212 miles with and auto trans .Everytime I start the car it seems to crank awhile and then starts. I went and changed the fuel filter and same thing so I checked the fuel pressure and it was zero when I turned the key on the pressure goes to 34psi and with the engine running it has 36psi at idle as soon as i shut the car off the pressure drops to zero. I checked a couple of books and i am getting different pressures for this car some say 36 to 40 psi and others says 55 to 85 psi. Now I am some what sure I asked a couple of friend mechs and they say the pressure should hold so everytime the car restarts it doesn't have to build pressure in the system for a easy restart. but nobody can give me the exact answer if the pump should hold pressure what is the pressure??
Any help please.[/quote:028b0d8115]

The fuel pressure KOEO should read 35-55psi. losing the residual pressure like that could be cause by leakage on gas line/pump check valve/FPR/ and 1 or 2 injectors leaking-the system has to be tight.

Hope this helps

Aug 12, 2007 at 11:05 AM

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