jump start gone wrong
03-16-2013, 05:00 PM
#1
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Year: 1996
Model: Cherokee
Engine: 4.0
jump start gone wrong
Hello all... Call me dumb but this morning I had to jump my truck.So being in a rush and low light conditions I managed to cross the cables.With that said I had screwed something up.When I try to start it just cranks.I checked all maxi fuse and all under the dash.I have notice while checking fuses.My dome lamps never turns off.When I push the jam switch in they dime but don't shut off.Pull fuse and they go out of course.So I've come to the conclusion I shorted something but I what IDK..Any help in where to start would be great full.
03-16-2013, 05:44 PM
#2
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Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Sounds like ya left interior light on which killed battery turn headlight switch **** clock wise . see if light goes out when doors shut of course ....Have you checked fuses for power on both sides with key in run position.
Last edited by freegdr; 03-16-2013 at 05:48 PM.
03-16-2013, 06:25 PM
#3
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Year: 1996
Model: Cherokee
Engine: 4.0
yeah all fuses checked out ok.Checked all switchs,all off.I can't get it to start even with it being jumped correctly.Just cranks but won't fire.Hope its not the ECU since I just replaced last mouth because of it not sending out a injector pulse.
03-16-2013, 07:08 PM
#4
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Year: 1999
Model: Cherokee
Engine: 4.0
Not sure what to tell you about your dome light, but it is not uncommon to fry either the computer, the alternator, or both when you cross the cables on a jump start.
I'm guessing computer in your case. I think I'd start by sourcing a different computer from a salvage yard and install that and go from there.
Good luck and keep us updated!
I'm guessing computer in your case. I think I'd start by sourcing a different computer from a salvage yard and install that and go from there.
Good luck and keep us updated!
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03-17-2013, 12:32 AM
#9
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Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
Yea, and check every single fuse in the thing. Those three above are about the best here...curious..how long, and how well was it hooked up backwards?
Do you hear the fuel pump run a couple secs when you turn the KEY on? Got spark?
Key...
Do you hear the fuel pump run a couple secs when you turn the KEY on? Got spark?
Key...
Last edited by DFlintstone; 03-17-2013 at 02:26 PM.
03-17-2013, 02:00 AM
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Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Still cant figure out why every one jumps to the most costly fix for a issue first . KISS . fuses first the fuseable links then go from there but why listen to a guy whos worked on automobiles longer than most on here have been alive ....jm2cw easy fix would be junk jeep buy a new one .
03-17-2013, 09:29 AM
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Year: 1992
Model: Cherokee
Engine: 4.0L Stock Straight 6
Still cant figure out why every one jumps to the most costly fix for a issue first . KISS . fuses first the fuseable links then go from there but why listen to a guy whos worked on automobiles longer than most on here have been alive ....jm2cw easy fix would be junk jeep buy a new one .
03-17-2013, 02:14 PM
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Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Fuse must be checked for power in and out . With key in run position. Then go from there . Under dash and under hood .