what makes it read

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May 4, 2012 | 10:24 AM

aa7kn

Thread Starter

Seasoned Member

Joined: Apr 2012

Posts: 253

Likes: 2

From: Abu Dhabi, UAE

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 ?

May 4, 2012 | 12:14 PM

DFlintstone

CF Veteran

Joined: Aug 2011

Posts: 10,489

Likes: 24

From: Nor-Cal Coast

Year: 90,84

Model: Cherokee

Engine: 4.0,2.5

You definitely want to make sure the belt is tight.

May 5, 2012 | 01:33 PM

NoClearCoat

Junior Member

Joined: Feb 2012

Posts: 66

Likes: 0

From: polk county Ga

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.