dwk

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

DougW

dwk did pass the time by typing:
> 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.

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.

--
DougW

DougW

dwk did pass the time by typing:
> 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.

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.

--
DougW

DougW

dwk did pass the time by typing:
> 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.

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.

--
DougW

DougW

dwk did pass the time by typing:
> 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.

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.

--
DougW

Mike Romain

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:
>
> 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

Mike Romain

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:
>
> 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

Mike Romain

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:
>
> 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

Mike Romain

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:
>
> 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

Art Welch

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