I'm wondering if I could have a prob other than low coolant? All I did was remove the lower hose, pinched it..it exploded then I replaced it, I dont think my head is damaged cause my jeep still runs strong and smooth..

 

you have to "burp" the system... have your jeep running with the res. lid off and the heater on high.. keep filling as needed.. What is happening is when the thermastat is opening it is sucking all the lost coolant back into the engine.. After it has stopped suking the coolant and your heater is blowing hot you should be ok but test drive and check coolant just to be sure.

 

Did the original hose have the spring in it? If so, did you transfer it to the new hose?
If this is not your issue, then you just need to bleed the heck out of the system. Unless for some strange reason the t-stat decided to seize at the same time as all this happened. Good luck.

 

Yes it had the spring in it...I trashed it

 

Well then that would explain alot. Try to find another spring and install in back in that lower hose. It's collapsing when it's hot at speeds and not allowing the coolant to flow.

 

Really? I've had everyone tell me the springs are unnecessary..they supposedly make the new pipes to where they are harder to collapse

 

Not in 100% of cases. Especially if it a cheapo brand of hose or the hose was defective. The XJ's throw a lot of heat off the engine which softens rubber and if you have good suction on the water pump then it will collapse if it want's to.

Try getting all the air out of the system 1st before opening it up again just to make sure. But it's just kind of coincidental that you changed the hose and NOW have the problem. Good luck man.

 

I didn't wanna change the hose lol..took the old hose off to install new power steering hoses..went to the car wash and half way there my temp went to 240...I stopped waited a minute then BoOM! Anti freeze goes everywhere..popped the hood and the hose had busted an inch from where it clamps to the engine. Realized it was pretty tightly pinched between the return and presure ps hose..installed the new hose put a tad of coolant in it and it over heated again on the 1 mile drive home...when i pulled it originally to get to the ps hose I lost ALOT of fluid...hoping this is my answer

 

Yes, definitely sounds like a low coolant issue to me especially if you only put a tad of coolant in. You need to fill that baby up and then bleed the air out.

 

Will do. Thanks man..I'll keep you updated

 

Guessing im still low on coolant. I went for a spin today and It got hot QUICK..Im talking 240 in about 5 minutes. Im not leaking anti freeze anywhere but I still may be low on coolant. When I originally pulled the lower rad hose I lost ALOT of fluid..im guestimating about a gallon...give or take a little. I lost about half a gallon when I blew the lower hose. My resivor will slowly empty down over the course of about 2 hours while sitting..is this normal? Also would It be running rough if I would have blown or cracked a head? Im praying I didnt do that. It ran like normal..just got hot quick. Guess Ill let it cool down and add more coolant..any ideas?

 

If you have a blown headgasket it would be running rough most likely and you would have white smoke pouring out of the exhaust pipe. And the oil would have a milky look to it. I dont think you blew the headgasket from just changing out the rad hose. You possibly could have when it overheated but it would be experiencing the symptoms I mentioned above. I dont know how much coolant you put in it, but last time I changed out my radiator and removed the lower rad hose I lost A TON of coolant. It took about 4 gallons to fill it up and then some. What I would do at this point is burp the system. (WARNING DO THIS WITH THE ENIGNE COMPLETELY COOL) Now pop your hood, remove the radiator cap. put coolant into it until it is full. DO NOT put the cap back on. Now go start your jeep, and wait. Fill it with coolant as the air slowly bleeds out of the system. Should take about 10mins to completely finish bleeding the system from start to finish. After it wont take coolant anymore shut the engine off and put your cap back on.

 

When I turn teh jeep on with the cap off coolant spills out. Dude btw..your xj is amazing.

 

That's the stain from the coolant lol..look like a lot?

 

It's way more than for my liking.

Another way to try to get all the air out is remove the hose on the bypass line of the water pump. Then fill the radiator until you get a little coolant out of the bypass line. Since this is the highest point of the system, if you get coolant out of there, then you know you have no air left in the system. Reattach the hose and put the cap on and run it.