Gonepostal
NAXJA Forum User
- Location
- WY
OK here is the issue. I have 98 with a stock 4.0 that runs good at highway speed after warm up. Prior to reaching running temperature the engine runs rough and lurches at low speeds. The engine seems to still not quite idle right after warm up but does run better. No codes are getting set so I have not been able to trace the problem that way. Any suggestions?