Click, click, click no start, was mig welding
07-28-2017, 03:36 PM
#1
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Year: 1991
Model: Cherokee
Engine: 4.0 HO
Click, click, click no start, was mig welding
I was tacing in a custom roof rack for my canoe using a mig at 105amp. Didnt disconnect the neg terminal.
Starter bench tested fine. in it just repeatedly clicks. at proper voltage how ever the gauge shows just under 10 v. Swapped computer and that didnt help.
seems i fried something any ideas on what to look for first? any other ideas?
Thanks
Starter bench tested fine. in it just repeatedly clicks. at proper voltage how ever the gauge shows just under 10 v. Swapped computer and that didnt help.
seems i fried something any ideas on what to look for first? any other ideas?
Thanks
07-28-2017, 08:21 PM
#4
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Year: 1998 Classic (I'll get it running soon....) and 02 Grand
Model: Cherokee (XJ)
Engine: 4.0
The two most likely failures are probably the PCM, and the alternator diodes.
Charge the battery and see if it will start. Ain't happening at 10 volts. If it will start once the battery is charged, time to check the alternator.
Charge the battery and see if it will start. Ain't happening at 10 volts. If it will start once the battery is charged, time to check the alternator.
07-29-2017, 02:05 PM
#5
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Year: 1991
Model: Cherokee
Engine: 4.0 HO
Its in the ignition sub system. with pcm, starter, coil and alternator disconnected im still getting the drain when pulling the 60 amp ignition fuse.
blueridgemark i think your spot on with the fried diodes.
am i missing a connection or is that hard wired into the harness? cant see where to disconnect it????
blueridgemark i think your spot on with the fried diodes.
am i missing a connection or is that hard wired into the harness? cant see where to disconnect it????
07-29-2017, 02:45 PM
#6
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Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Its in the ignition sub system. with pcm, starter, coil and alternator disconnected im still getting the drain when pulling the 60 amp ignition fuse.
blueridgemark i think your spot on with the fried diodes.
am i missing a connection or is that hard wired into the harness? cant see where to disconnect it????
blueridgemark i think your spot on with the fried diodes.
am i missing a connection or is that hard wired into the harness? cant see where to disconnect it????
07-29-2017, 02:49 PM
#7
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Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
I was tacing in a custom roof rack for my canoe using a mig at 105amp. Didnt disconnect the neg terminal.
Starter bench tested fine. in it just repeatedly clicks. at proper voltage how ever the gauge shows just under 10 v. Swapped computer and that didnt help.
seems i fried something any ideas on what to look for first? any other ideas?
Thanks
Starter bench tested fine. in it just repeatedly clicks. at proper voltage how ever the gauge shows just under 10 v. Swapped computer and that didnt help.
seems i fried something any ideas on what to look for first? any other ideas?
Thanks
Clicking starter 99 percent of time is bad connection.
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07-29-2017, 08:59 PM
#8
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Year: 1998 Classic (I'll get it running soon....) and 02 Grand
Model: Cherokee (XJ)
Engine: 4.0
Many have done so, many times. Others have fried things the first time, or the 307th time.
It does happen. For the great effort it takes to disconnect the ground terminal, it does not make sense to risk an alternator or PCM.
07-30-2017, 09:15 AM
#10
Caracticus Potts The Mod
I was tacing in a custom roof rack for my canoe using a mig at 105amp. Didnt disconnect the neg terminal.
Starter bench tested fine. in it just repeatedly clicks. at proper voltage how ever the gauge shows just under 10 v. Swapped computer and that didnt help.
seems i fried something any ideas on what to look for first? any other ideas?
Thanks
Starter bench tested fine. in it just repeatedly clicks. at proper voltage how ever the gauge shows just under 10 v. Swapped computer and that didnt help.
seems i fried something any ideas on what to look for first? any other ideas?
Thanks
08-11-2017, 03:36 PM
#11
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Year: 1991
Model: Cherokee
Engine: 4.0 HO
The battery was charging and looked ok. But i had it load tested and ny had 47 CCA from 720. So weak just charging the ignition system was bringing it down to 9v. Over thinking the mig shorted out electronics.
Thanks for the input gentleman
Thanks for the input gentleman
