what makes it read

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05-04-2012, 10:24 AM

aa7kn

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Year: 1991

Model: Cherokee (XJ)

Engine: 4.0 6cyl.

what makes it read

I have a 1991 XJ 4.0LHO 6cyl. 5 speed. I want my volt meter to read correctly. it sometimes reads 13volts, and sometimes it reads 10 volts. when I turn on the A/C she drops down allot. I have 13.8 at the battery so I am sort of sure it is charging. what can I check,clean,wiggle or replace to get my volt meter reading correctly ?

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05-04-2012, 12:14 PM

DFlintstone

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Year: 90,84

Model: Cherokee

Engine: 4.0,2.5

You definitely want to make sure the belt is tight.

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05-05-2012, 01:33 PM

NoClearCoat

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Year: 1989

Model: Cherokee

Engine: 4.0L

I have the same problem. Someone mentioned that the voltmeter shares a common ground with several other items under the dash and corrosion on the terminal could cause it.