Peteyg
NAXJA Forum User
- Location
- Corona, CA
Stats:
'96 XJ Country 4.0 California Emissions
5-ish inch lift, AW4
I'm having a very annoying problem right now. Yesterday I was heading out to go wheeling. Jeep was pretty loaded up, and it was warm. outside temp 96, AC blowing cold, engine temp around 220. Cruising happily down the highway at about 70 when the Jeep hitches a couple times then loses power. I get it to the breakdown lane, where it runs REALLY rough for a few seconds, then dies. Before it died, I was able to rev the engine a little, but it had a bad miss. It almost felt like my 2000 TJ with the coil packs did when it would get heat soaked. I could always clear that out, though. This just got worse until it died.
It cranks, and *wants* to start, but just never quite gets there. It'll catch for a few seconds, but it sounds REALLY rough. My '73 Dart sounds exactly like this when the float valve gets stuck and it floods.
Some things I checked. STRONG flow at the fuel rail. All fuses are good. I decided to not do any further roadside troubleshooting. A good samaritan stopped and pulled me back to town on my tow strap, and I got ahold of a friend who came and got me with his truck and trailer.
Some other things:
It had a similar problem 2 months ago on a long trip to Ridgecrest. Turned out to be a bad spark coil, but in the process of working down to that, I also changed the fuel pump and filter. They are all brand new. Knowing that new parts go bad all the time, of course the very first thing I will check is the coil, but I suspect that isn't the problem this time.
I have not yet had a chance to plug the scanner in. It's at my friend's shop right now. I'll be going over there later this morning to see if I can get it running.
I'm currently leaning toward a clogged CAT, but if anyone has any other ideas of where I should start looking, I'm all ears.
'96 XJ Country 4.0 California Emissions
5-ish inch lift, AW4
I'm having a very annoying problem right now. Yesterday I was heading out to go wheeling. Jeep was pretty loaded up, and it was warm. outside temp 96, AC blowing cold, engine temp around 220. Cruising happily down the highway at about 70 when the Jeep hitches a couple times then loses power. I get it to the breakdown lane, where it runs REALLY rough for a few seconds, then dies. Before it died, I was able to rev the engine a little, but it had a bad miss. It almost felt like my 2000 TJ with the coil packs did when it would get heat soaked. I could always clear that out, though. This just got worse until it died.
It cranks, and *wants* to start, but just never quite gets there. It'll catch for a few seconds, but it sounds REALLY rough. My '73 Dart sounds exactly like this when the float valve gets stuck and it floods.
Some things I checked. STRONG flow at the fuel rail. All fuses are good. I decided to not do any further roadside troubleshooting. A good samaritan stopped and pulled me back to town on my tow strap, and I got ahold of a friend who came and got me with his truck and trailer.
Some other things:
It had a similar problem 2 months ago on a long trip to Ridgecrest. Turned out to be a bad spark coil, but in the process of working down to that, I also changed the fuel pump and filter. They are all brand new. Knowing that new parts go bad all the time, of course the very first thing I will check is the coil, but I suspect that isn't the problem this time.
I have not yet had a chance to plug the scanner in. It's at my friend's shop right now. I'll be going over there later this morning to see if I can get it running.
I'm currently leaning toward a clogged CAT, but if anyone has any other ideas of where I should start looking, I'm all ears.