1993 Jeep Cherokee Charging System

SDNZOO

MEMBER
1993 JEEP CHEROKEE
6 CYL
4WD
AUTOMATIC
217,000 MILES

My '93 Jeep Cherokee is over charging. The gauge is correct and the ECM has been replaced. I have even replaced the alternator. I know Chrysler voltage regulators are in the computer so that's where I started. The alternator was original so I replaced it also. Any guesses? Thanks in Advance.

5 Replies

BMRFIXIT

MECHANIC
19,053 POSTS

Just a suggestion did you check the battery

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Saturday, January 26th, 2008 AT 11:30 PM

SDNZOO

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3 POSTS

Just a suggestion did you check the battery[/quote:fa8adedd63]

I have replaced the battery three times now. I should have mentioned that before. Sorry.

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Sunday, January 27th, 2008 AT 4:06 PM

BMRFIXIT

MECHANIC
19,053 POSTS

Just a suggestion did you check the battery[/quote:b2f7877e07]

I have replaced the battery three times now. I should have mentioned that before. Sorry.[/Quote:b2f7877e07]
what is the running volts did you check it at the battery if possible use a digital meter
i will try to see if there is any TSB on it

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Sunday, January 27th, 2008 AT 5:01 PM

SDNZOO

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3 POSTS

Just a suggestion did you check the battery[/quote:b7595eaf37]

I have replaced the battery three times now. I should have mentioned that before. Sorry.[/Quote:b7595eaf37]
what is the running volts did you check it at the battery if possible use a digital meter
i will try to see if there is any TSB on it[/quote:b7595eaf37]
It is between 15.63 and 16.95 at the battery. I appreciate your help.

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Monday, January 28th, 2008 AT 8:30 AM

BMRFIXIT

MECHANIC
19,053 POSTS

Just a suggestion did you check the battery[/quote:5fdb0ab7f3]

I have replaced the battery three times now. I should have mentioned that before. Sorry.[/Quote:5fdb0ab7f3]
what is the running volts did you check it at the battery if possible use a digital meter
i will try to see if there is any TSB on it[/quote:5fdb0ab7f3]
It is between 15.63 and 16.95 at the battery. I appreciate your help.[/Quote:5fdb0ab7f3]

do you have a scanner tool?
If so you can do a field test
did you check for codes stored
check wiring between alternator and car module