Fuel Pump Issue, help
10-14-2010, 01:13 AM
#1
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Year: 1987/1989
Model: Cherokee
Engine: Straight 6 4.0l
Fuel Pump Issue, help
Can't get my jeep to start. No fuel coming out from fuel pump. Just replaced it. I can hear it turn on but no fuel comes out. Disconnected the fuel line hose going to the fuel pump to see if any gas would shoot out when key is turned on but nothing. So power is going to it but fuel isnt being pumped out. Is there some kind of reset fuse/relay/switch or something?
10-14-2010, 01:18 AM
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Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
the fuel pump turns on only for a second then goes off as to like prime the motor it will not pump again tell the motor starts do you have spark
10-14-2010, 01:26 AM
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Year: 1987/1989
Model: Cherokee
Engine: Straight 6 4.0l
yes i have an initial spark. I had my dad look while I try to start it, there was one spark, kinda yellowish (weak) then no more.
Yes but the fuel pump should still pump out fuel during those three or so seconds. we did it with my other jeep. disconnected the fuel line going into the fuel filter then turned on the key. fuel starting shooting out. but with this one im working on now, nothing is being pumped out
Yes but the fuel pump should still pump out fuel during those three or so seconds. we did it with my other jeep. disconnected the fuel line going into the fuel filter then turned on the key. fuel starting shooting out. but with this one im working on now, nothing is being pumped out
10-14-2010, 01:27 AM
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Year: 1997
Model: Grand Cherokee
Engine: 5.2
you can swap the fuse with your aux fan fuse. that is taking your aux fan works. its under the hood. i had a diagram but its freakin late and dont wanna look for it. im just waiting for my phone to hook up to my comp so im wasting time on here.
10-14-2010, 01:32 AM
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Year: 1987/1989
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what kind of fuse is this?
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10-14-2010, 01:33 AM
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Year: 1987/1989
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10-14-2010, 01:40 AM
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Year: 1997
Model: Grand Cherokee
Engine: 5.2
im talking about the fuses under the hood. at least in mine (94) its on the passenger side behind the battery. the two most left fuses are fuel pump and aux fan. you can switch them. i doubt it will work but u can try.
10-14-2010, 01:40 AM
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Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
bad thing about ours the 87 thru 89 you cannot hook a scanner to it to get codes it could be the crank sensor or the map sensor the ignition module or the coil do you no any body with a nother xj around the same year
10-14-2010, 01:43 AM
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Year: 1987/1989
Model: Cherokee
Engine: Straight 6 4.0l
you talking about the relays? theres four in a row? If so I alredi tested them, seemed okay
10-14-2010, 01:47 AM
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Year: 1987/1989
Model: Cherokee
Engine: Straight 6 4.0l
funny you mention 87 because i have another jeep which is an 87 pioneer. we changed the fuel pump because it stopped turning on period.
