Weird Electrical Issue -
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Unread 02-13-2013, 04:21 PM   #1
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2002 WJ 
Join Date: Feb 2013
Location: Colbert, WA
Posts: 1
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 ECU twice - and the last time I did that I was told the problem was using the Interstate battery. The ECU 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 - yet now I can only for the 136 Amp.

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

Thanks ahead of time!

JCwithWizard is offline   Reply With Quote

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