fuel shutoff emergancy? 02 liberty?

[bratt]

does the 02 have some sort of fuel shutoff
our liberty wont start after a fender bender here

there is no fuel pressure and the fuel pump does not turn on after fender bender

[Airjer_]

Nope. What fender?

[bratt]

smashed the bumper off and hood bent, motor looks fine but wont start
When the key it turned the starter turns the motor

I checked for fuel pressure and there is none. the pump is not being turned on. I guess it was shutoff by a crash sensor

is the check engine light supposed to come on for a moment when you put Key on?

[Airjer_]

The fuel pump has a fuse and a relay. The relay gets energized by the auto shutdown relay. If parts are missing than a close look for broken connectors/wiring would be a good start. I had a neon the other week that you really couldn't see any front end damage but things where pushed around enough to break off one of the bulk connectors to the PCM.

[bratt]

hi Airjer,

so where are these relays? under the hood?
which relay are they? what position / row is it at?

there is no fuel pressure when I try to start, I know something has disabled the fuel pump

[Airjer_]

Have an owners manual?

There should a power distribution center under the hood.

[bratt]

yes, i see the relay fuse box

but I dont know which relay is which
I think they all work. The wiring is all there and has not been cut
none of the relays are broken

[Airjer_]

Aren't they labeled on the inside of the cover?

You might want to bring it in and have it diagnosed.

[rhandwor]

Look for a push button reset they hide them along side fenders behind a brace. If you push the reset button it should start if you had a minor fender bender.
The location is always located in the owners manual. You can look in a Chilton's or Haynes manual.

[Airjer_]

Originally Posted by rhandwor

Look for a push button reset they hide them along side fenders behind a brace. If you push the reset button it should start if you had a minor fender bender.
The location is always located in the owners manual. You can look in a Chilton's or Haynes manual.

If it where a ford you would eventually find one somewhere. Chrysler/Jeep you can look all you want, You won't find one. In fact I think ford is the only manufacturer that uses a resettable fuel cut off switch.

[rhandwor]

I did search and the 2006 and 2007 Jeep Liberty web site lists an emergency fuel shut on the Jeep web site. I also found a Jeep technician who said you need a DRB3 scan tool to access this devise. I assume the latest OTC Genius scan tool would do this. A lot of independent shops use these. Some shops use Snap On scanners.