wont start

C

cardinal

NAXJA Forum User

Location

connecticut

• Jul 19, 2011

• #1

my 93 xj wont start. when i key on auto shutdown and fuel pump relays click for a few seconds then stop. i checked power at fuel pump and there is power for the first few seconds untill the clicking stops. any help would be greatly appreciated

93xj 4.0/ax15

 

Last edited: Jul 19, 2011

B

BrokenSockets

NAXJA Forum User

Location

Ayr, Ontario

• Jul 19, 2011

• #2

CPS?

 

C

cardinal

NAXJA Forum User

Location

connecticut

• Jul 19, 2011

• #3

jeep has been sitting since fall time. unless it can go bad just sitting

 

C

cardinal

NAXJA Forum User

Location

connecticut

• Jul 20, 2011

• #4

no other opinions?

 

C

cardinal

NAXJA Forum User

Location

connecticut

• Jul 26, 2011

• #5

checked spark yesterday and it has good spark so i am betting on the cps, anyone want to confirm?

 

old_man

NAXJA Forum User

Location

Loveland, Colorado

• Jul 26, 2011

• #6

The fuel pump only runs for a few seconds after the ignition is turned on, then stops until you start cranking. If you are getting spark, the CPS is good. Check the fuel pressure at the injector rail.

 

C

cardinal

NAXJA Forum User

Location

connecticut

• Jul 26, 2011

• #7

i believe the relays are killing power to the pump, when i check power to pump with a test light, there is power for maybee 2 seconds untill i hear the relays click. i put a cell in the back of my jeep. do i need to bleed the line at the rail?