Fried Fuse

Jul 28, 2005 3 Replies

I have a '97 TJ.......4.0 ....every couple of days the motor goes entirely dead while I'm driving.......it just dies on me......when it does it won't crank, nothing, just entirely dead, accessories such as the lights, radio, ect. still work.



When it dies......in the fusebox, under the hood, on the passenger side..........the 30A fuse, second from the rear, on the inside row is burnt out. I change it and it's good for a few more days. There is no pattern to when it blows.....could be driving on smooth or off-road.....even while idling.........



What gives ????? Any suggestions appreciated.



dwk


dwk did pass the time by typing:

Look on/under the fues box lid or around the fuse for a number or description of what the fuse is tied to. Your describing an intermittent short or an overload and the fuse is blowing to prevent the harness from catching fire. 30A fuses take a lot to blow.

I would be looking for the melted wire touching the exhaust manifold or exhaust pipe. Likely near the O2 sensor.

Mike

86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's

dwk wrote:

Mike's right, a short in the downstream O2 sensor on the earlier TJs would generate this exact symptom.

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