What would cause no fuel pressure?

SWEETESTCAVALIAR

MEMBER
1998 SATURN SL2

My car will start for me, everything running/sounding normal. After a couple of minutes, the car will stall. Once the car stalls, I do not hear the fuel pump. I have swapped relay, and still nothing. If I wait for a long period of time, the car will start up. Just long enough for it to stutter and stall again. I have checked both fuel pump fuses, which are good. Once the engine stalls, and do a fuel PSI test, it's a dead 0. I am stumped, it's like the entire fuel system is turned off, which is probably why the car is stalling.

3 Replies

MHPAUTOS

MECHANIC
31,938 POSTS

Probably a faulty fuel pump, is the pump a new pump? With the pump not working do you have voltage at the pump?

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Tuesday, October 4th, 2011 AT 6:15 AM

SWEETESTCAVALIAR

MEMBER
11 POSTS

There's no voltage at the pump. I had recently replaced that pump along with filter and regulator. I still have yet to check if there's voltage going to the relay. Being my luck there won't be. Will have to wait to find out on that one though.

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Tuesday, October 4th, 2011 AT 6:40 AM

SATURNTECH9

MECHANIC
30,870 POSTS

Just to add to this one I have seen a very odd issue with power not getting to the inside fuse box because of a open terminal on the 68 way connector to the back side of the fuse box. It a ticking time bomb just waiting to not give power. So you checked power and ground seperate to the fuel pump?Or did you just not find power to the fuel pump?Where did check for the power at the fuel pump module connector or the inline connector in the trunk?Also when it doesnt start and you have 0psi see if you have power across both sides of the fuel pump fuse while cranking the engine to start it?

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Tuesday, October 4th, 2011 AT 3:56 PM