Bill suggested trying to take out the tstat to see if maybe my new tstat is working so I'm gonna try that after it cools down some. I know that this is probably another shot in the dark but has anyone heard of a faulty exhaust system making overheating problems?
So Cal desert rats
- Thread starter scottmcneal
- Start date
Paul Airhart
NAXJA Forum User
- Location
- La Quinta, CA
What Bill said.
One Q for You, have You ever had the cooling system serviced? Block rotted out?
I'm running a three core, flowkooler water pump, ZJ fan clutch with a stock fan and water wetter/water mix. Around town it runs about 210-20, depending on how much traffic their is. Cruzing on the frwy it runs about the same. You don't have one of those in-line filters on the rad hose, do You? I had a t-stat XXXX itself sideways once, cut down the flow by at least 50%.
One Q for You, have You ever had the cooling system serviced? Block rotted out?
I'm running a three core, flowkooler water pump, ZJ fan clutch with a stock fan and water wetter/water mix. Around town it runs about 210-20, depending on how much traffic their is. Cruzing on the frwy it runs about the same. You don't have one of those in-line filters on the rad hose, do You? I had a t-stat XXXX itself sideways once, cut down the flow by at least 50%.
Don't feel like I have power loss, ill have to look for a glow. Thanks
tone
NAXJA Forum User
- Location
- La Quinta, Ca
Have you tried becoming a member of 
? Maybe thats why your XJ hates you!
? Maybe thats why your XJ hates you!
Vanimal
NAXJA Forum User
- Location
- escondido, ca
Mine used to overheat, after i went red it stays at 190-195. true story.
What does "red" mean"
- Location
- San Diego
its the color of his name. it happens when you joint the secret society.
and you get a sticker.
Paul Airhart
NAXJA Forum User
- Location
- La Quinta, CA
Living in Escondido, and not the devils sun room like Us, helps too.:firedevil
I go to Riverslime and It doesn't go over the quarter mark.:bawl:
Vanimal
NAXJA Forum User
- Location
- escondido, ca
i was kidding, i dont even know what i run, the gage doesnt work much. i'll worry about it when my shoes melt.
i can tell when it gets to about 220, the clutch doesnt disengage until the pedal is on the floor.
zj fan clutch helped a little.
- Location
- So.Cal. Low Desert
So I just put the thermostat in some water and brought it to a boil. Per my steak thermostat the water was at 200 when it started to open and fully open around 210. Mind you the steak thermostat isn't really made to go the hot (unless you like charcoal for steaks). In comparison the water was just starting to get some little bubbles when it started to open and was full boil when it was completely open. Seeing as we are at or darn near at sea level that would be approx 212. Maybe I should get another TStat and do a boil test? Or are these results good enough to drop it back in?
So I just picked it up from pacific brake and alignment. They did a back pressure test on the exhaust and they said all was good. They said the cat was good and they didn't notice any exhaust leaks. So then I drove to Stans auto. He said to drop it by on Tuesday and he would check it out. That's where I'm at! I'm done trying to figure this out. I need a pro. I'm gonna have him check the compression on the motor and all that good stuff. Feels defeating but I guess I have to know my limitations and stop spending money on stuff that may or may not fix it. 
souske
NAXJA Forum User
- Location
- The land of competition
Have you tried bleeding your clutch fluid? I bet it looks like mud
Paul Airhart
NAXJA Forum User
- Location
- La Quinta, CA
210-20* is about normal. So if it opens around that it should be fine. But for some reason your much above that. Aaron, can You post the CFM's of those fans and I'll do some research today. Because of the ZJ clutch my fan is pulling some serious air, but I'll use the stock CFM for a comparison.
Paul Airhart
NAXJA Forum User
- Location
- La Quinta, CA
My f-250 used to do the same thing.
Ill see what I can find. The thing is though, I don't have a problem around town. 215-226 degrees. It is at freeway speed when there should be enough ram air that the fans won't be a problem. I have already talked to two local mechanics, Stan and ???can't think of his name but the guy at pacific, and they said your fan is for slow speeds but freeway speeds you could even go without a fan. FFdynamics responded with the same thing. They said if there was a problem with their fans it would be hot around town and cool on the freeway. Ill see if I can find the cfm's though for comparison. I also just took off my lights....makes me sad....we put a hard days work in on those paul. I just want to remove anything that would restrict airflow.
souske
NAXJA Forum User
- Location
- The land of competition
Is your XJ way undergeared? I know when I was 3.07's and 33"s. I had chronic overheating.
