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***SOLVED*** It was the head gasket. So I didn’t want to believe that it was the head gasket that I so meticulously installed at the end of 2018. Why not? 1) The cylinder compression was good 2) the combustion leak test was good (liquid never turned green) 3) I used quality parts and...

CJR, I really appreciate the insight. I think what you’re saying is that given all the details, I’m most likely looking at a head gasket issue. This will be the third time that I replace the head gasket. I’m wondering if I should just throw a clearwater head in there instead of having my...

Hmmm, not sure if I’m running lean. How would I check that? My torque converter seemed like it was slipping a few weeks back. Changed my MAP sensor and that fix es that. Mind you overheating was an issue before and after MAP sensor. Also, about the highflow water pump. Jeep overheated before...

I ran this one in 2018: TYC 620560 Jeep Cherokee... https://www.amazon.com/dp/B000IYNVN6?ref=ppx_pop_mob_ap_share Then swappeed it out for this one in 2019: Maxiii 10 Inch Radiator Cooling... https://www.amazon.com/dp/B07VX5V43P?ref=ppx_pop_mob_ap_share Both of them overheated before and...

Hey CJR, I found an old list that I followed couple years ago I posted below. 1: year - 99, 6 cyl 2: head gasket was pressure tested and checked for leaks and cracks by the most recommended shop on Vegas, it wasn’t cheap. 3: how I installed: list below, I remember planning this forever...

Let me clarify a few things, sorry: 1999 6 cyl The tires and gears don’t matter Bc this this will overheat at idle. If I removed the tires and gears, it will still overheat in my driveway. Also. I changed parts one at a time... Meaning it was overheating with the 195 thermostat, remove...

I’ve been chasing an overheating problem going on three years. Jeep overheats at idle. Every summer my Jeep overheats, I change parts all summer and never fix it until the weather cools down and the problem goes away. 2018: -moved to Las Vegas and my overheating problems begin -replace...

Thanks for all the tips. I also have a lifter tick, so it will be a good time to swap the lifters out too. The sound went away when a put a bottle of engine restore. but came back a few weeks later. -SL

Well, my nightmare is confirmed. Took about 5 min. But the liquid turned green. Thanks for all the help guys. I probably would have never found this. Looks like I have a nice weekend project ahead of me. Anyone care to point me in the direction of a quality gasket kit? Possibly a head...

Very interesting! I will obviously perform the test first at lower temps and see if I can get it to fail. If not... Then I'll continue to attempt as temperature rises, thanks for the tip! I would have cashed out once it passed at low temps. I have a bluetooth OBD Sensor where I can monitor...

Yes sir, thanks to Old_Man and your post, I've done some research and ordered a kit. Going to perform this test this week and pray to the Jeep Gods that the liquid stays blue. I already changed the head gasket once last year, I'm hoping everything was put together back correctly and I don't...

Very good point. You may be 100% correct. I just moved from FL. So my jeep isn't used to this heat or hills. There is a current heat wave coming through now. High heat, in combination with cheap parts may be the reason behind my demise. What I do notice is at night, it takes much longer to...

I owe you guys an update: VACUUM LEAKS I pushed air and cigar smoke through my intake manifold and found air escaping from the #4 fuel injector Turns out the o-ring was a bit too small (left o-ring on pic) After this fix, the jeep is so much smoother and shifts much better. Drove it uphill...

@Old_man, thanks for taking the time to write that list! Here are my responses: 1) Running too lean, caused by vacuum leak such as intake, or vacuum booster, etc. I def have vacuum leaks, When I accelerate on the highway I lose my AC until the RPM's drop back down and I'm cruising again. 2)...

This Radiator;Core thickness 1 Inch This Fan Clutch Will check the ac condensor for blockage Thanks! Thanks for the link! This will be the next rad I get, but I dont think its a rad problem... i've owned the jeep for years and it's never had overheating problems like this. Will def clean out...

99 Jeep Cherokee 4.0 Liter Since last year gradually changed: Fan Clutch Electric Fan Thermostat (Super Stant 195) Water Pump Drive Belt Radiator Been acting up recently so I finally changed the radiator. Before installing the new rad, I did a super flush with preston flush, drove it...

99 Cherokee Limited 4.0L I was troubleshooting a "no bus" gauge cluster message and found a wire plug not fully seated behind my steering wheel. I plugged it in not knowing what is was to fix the issue. After that...my jeep will start for a few seconds and shut off. After doing some research...

Hello, 1999 Cherokee Limited 4.0 I've installed a remote start on my cherokee. It successfully turns on my jeep but doesn't run the blower motors. They turn on when I put my key in and rotate forward. I searched through threads and found this post: I don'tunderstand. black/orange is...

1999 XJ | 4.0L | 140K Miles Sorry for another engine knock thread, I've done hours of research, searching forums and this is my last resort. PROBLEM Engine sounds like a diesel when idling. knock or tick (idk the difference) Here's an audio file...

Frank Z, you da man. I did exactly what you told me but put some paper towels down first. GUESS WHAT!? Found the problem. #2 injector spitting gas. Oh lawd, I feel so much better now. Sent from my iPhone using Tapatalk