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Unread 02-13-2013, 05:21 PM   #1
JCwithWizard
Registered User
2002 WJ 
 
Join Date: Feb 2013
Location: Colbert, WA
Posts: 2
Weird Electrical Issue

2002 Overland - new forum user - Admin: if this forum is the wrong place to post this question feel free to move it. Thanks!

Weird problem.

A couple of months ago the AM radio in the vehicle started to make ‘popping’ noise and fading in and out as if I was driving in the middle of the desert at night. I thought there may have been something wrong with the radio until I was playing a CD and in a blank space in the audio I heard the popping sound - very much like a plug coil going off.

This Jeep has had its own share of electrical issues; seat heaters, mirror settings jump around, etc. Over the last few years I’ve had to replace the PCM three times - and the second to last time I did that I was told the problem was using the Interstate battery. The PCM remanufacturing place said that was it for sure - and so I took out my 1 year old Interstate and picked up a standard Costco battery - that did fix that problem!

However, now it seems that my driving lights are dim (although they do not brighten when revving the engine) and the radio has this fading / popping noise problem. During the daylight hours if I reeve the engine to 3,ooo rpm the fading of the radio goes away. Add driving lights and the fading comes back.

I’m thinking the problem may be the alternator - and I want to get that checked out. However, I thought I saw that the Overland came with a higher rated alternator.

Can anyone shed some light on the weird radio issue and confirm the correct alternator for this rig?

Thanks ahead of time!


Last edited by JCwithWizard; 10-14-2014 at 11:12 AM..
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