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88 4.0 XJ running like crap
- Thread starter woody
- Start date
XJTripp
NAXJA Forum User
- Location
- eastern North Carolina
On 89's its at the junction of the secondary and primary pipes of the exhaust header on the driver's side of the engine. Looks like a giant spark plug.
- Location
- NC Sandhills
Over a hundred miles since 02 swap
with no recurrence of the problem...
Thanks for all the help folks! Y'all amaze me
I think my other two non-HOs will get an 02 sensor and some plugs for my birthday
with no recurrence of the problem...
Thanks for all the help folks! Y'all amaze me
I think my other two non-HOs will get an 02 sensor and some plugs for my birthday
- Location
- NC Sandhills
A month later
and the original fault (stumble & occasional stall at idle) has stuck around...though nowhere near as bad as before. I cleaned the K&N with no notable improvement. I will try the EGR test today just to see.
The upshot of those plugs and/or the 02 sensor is an increase in MPG! Prior to that, I was getting around 17, and now getting around 20. That's like an extra 50 miles per tank if I did my figuring correctly, and that lets these repairs 'pay for themselves' in approx 20-25 tankfulls (about 4 months)
and the original fault (stumble & occasional stall at idle) has stuck around...though nowhere near as bad as before. I cleaned the K&N with no notable improvement. I will try the EGR test today just to see.
The upshot of those plugs and/or the 02 sensor is an increase in MPG!
Prior to that, I was getting around 17, and now getting around 20. That's like an extra 50 miles per tank if I did my figuring correctly, and that lets these repairs 'pay for themselves' in approx 20-25 tankfulls (about 4 months)