I will replace the head gasket if that's the problem.
That was my problem and I'm still kind of scratching my head on it. :wierd:
I will replace the head gasket if that's the problem.
Well I guess my exhaust manifold is getting a good welding. Ill let you know the outcome. Thanks!!
to the guy that found out his problems were caused by this can you tellme the symptoms you experienced as far as overheating?
If you drive it on the highway does it heat up? When you stop and turn it off does the temp keep rising? If you answered either of these questions with yes, chances are your radiator is partially stopped up.
I am having the same issues. How can I check to see if it is running lean?
You need to check your fuel pressure with a gauge. My RENIX runs at 31 PSI at idle, 37 with the vacuum disconnected at the fuel pressure regulator. Check to see what the specs are for your year.
As far as my overheating symptoms, I was fine at idle and around town. I had changed everything (radiator, thermostat, water pump, hoses, did the ZJ fan clutch, flushed it several times due to a crap load of stop leak in the system from the PO). Never broke 200 degrees on my mechanical gauge. As soon as I started climbing a long grade in 80 degree plus heat, my temp would slowly creep up past 230, flirting 240! At Ecomike's suggestion, I checked the down pipe to the collector. It was pretty wasted. I had it replaced and looked at the flange when the exhaust guy pulled it off. The sealing surface was so beat up it wouldn't seal well. Once it was changed out I noticed a HUGE difference in temps. On the way to Sierrafest it was over 100 degrees in the valley. Climbing the long, steady grade up the hill I topped out at 218 degrees with a full load of camping gear and spare stuff for the Jeep.
I am having the same issues. How can I check to see if it is running lean?
I had an over heating prob with my 96 and replaced the same parts you have and come to find out the crank sensor failed so I replaced that and havent had an overheat since??????? Im no expert but can a crank sensor CAUSE an engine to run lean due to inaccurate signal to the ecm??? Either way it fixed the overheat on my rig. Ive since pulled a trailer with atvs in 110 degree heat with out an issue...