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Topic Review (Newest First)
05-21-2013 11:25 AM
Garyk Hope parts store gave you the right pump.....some turn in opposite directions...
05-21-2013 07:06 AM
OverkillYJ
Quote:
Originally Posted by YjBrendle View Post
Okay so far new coolant tank, water pump, thermostat, and radiator cap all for $70. Thank you for all the help
I don't know why you wasted cash on a water pump. If it is not screaming, leaking, and there isn't play in the bearing your fan sits on it is fine.
05-20-2013 10:37 PM
YjBrendle Okay so far new coolant tank, water pump, thermostat, and radiator cap all for $70. Thank you for all the help
05-20-2013 09:11 PM
AllMudd The way it came out? Should be spring side towards the head. The thermostat housing should only allow it to go one way.
05-20-2013 08:20 PM
YjBrendle Quick question: which way does the thermostat go in?
05-20-2013 06:59 PM
YjBrendle
Quote:
Originally Posted by OverkillYJ View Post
Well if you are not moving it doesnt matter what you do, you will overheat. Running your heater will slow it, but not stop it. It you are driving over 30mph then you have air moving though the radiator. If your thermostat is stuck shut it doesnt matter how fast you go since the coolant wont circulate you will overheat. You also have to remember that fans may turn on at 200, but that probe is not usually in the same location as the sensor and usually kicks on when temps at the sensor are a little higher. Even then they do not instantly cool it. My temps go just past 210 (which could be interpreted at 220) until the thermostat opens. Then the temps plummet for a second before they start climbing again when the thermostat closes.

I have paid extra attention to this since I have had my share of cooling issues. I have new water pump and an electric fan. Tweaked and working perfectly.

I am assuming the fan shroud is still in place. If that is busted or missing it could cause this problem.

I would say flush the radiator, replace the Thermostat for the $10 is costs, and then see where it is at. If there is any fluid around the water pump it is bad. But I am assuming the OP looked at that already. Other than that it is one of the easiest systems to fix or troubleshoot.
I flushed the system a couple days ago and in the process of a thermostat (went with a 180 temp) I am going to take your advice about buying a new water pump. Thank you for your help! Im a rookie at this if you couldnt tell haha
05-20-2013 01:06 PM
OverkillYJ Well if you are not moving it doesnt matter what you do, you will overheat. Running your heater will slow it, but not stop it. It you are driving over 30mph then you have air moving though the radiator. If your thermostat is stuck shut it doesnt matter how fast you go since the coolant wont circulate you will overheat. You also have to remember that fans may turn on at 200, but that probe is not usually in the same location as the sensor and usually kicks on when temps at the sensor are a little higher. Even then they do not instantly cool it. My temps go just past 210 (which could be interpreted at 220) until the thermostat opens. Then the temps plummet for a second before they start climbing again when the thermostat closes.

I have paid extra attention to this since I have had my share of cooling issues. I have new water pump and an electric fan. Tweaked and working perfectly.

I am assuming the fan shroud is still in place. If that is busted or missing it could cause this problem.

I would say flush the radiator, replace the Thermostat for the $10 is costs, and then see where it is at. If there is any fluid around the water pump it is bad. But I am assuming the OP looked at that already. Other than that it is one of the easiest systems to fix or troubleshoot.
05-20-2013 11:33 AM
YjBrendle The only reason it didnt run hotter was because I put my heater on full blast. Otherwise it would have kept climbing
05-20-2013 08:12 AM
AllMudd
Quote:
Originally Posted by OverkillYJ View Post

210-220 isn't hot. Sounds more like your temp unit might be off by 10°. 210 is normal. When people say running hot I think of 220-230 or more. If you want you can replace the tstat, but it sounds fine.
220 is kind of hot that's what diesels run at. No gasoline engine should ever get over 210. Most fans turn on at or around 200. My YJ even with old fluid never thinks about hitting 210, even if I'm dogging the crap outa her!
05-20-2013 07:04 AM
OverkillYJ
Quote:
Originally Posted by YjBrendle View Post
Replacing my thermastat tomorrow. Ran it 30 miles and had the same problem. (Temp around 210-220) hopefully didnt blow a gasket!
210-220 isn't hot. Sounds more like your temp unit might be off by 10°. 210 is normal. When people say running hot I think of 220-230 or more. If you want you can replace the tstat, but it sounds fine.
05-19-2013 11:37 PM
YjBrendle Replacing my thermastat tomorrow. Ran it 30 miles and had the same problem. (Temp around 210-220) hopefully didnt blow a gasket!
05-19-2013 01:49 AM
maiello22690 Let us know what you come up with
05-17-2013 03:37 PM
YjBrendle Thank you I will look in to this weekend and hopefully figure out the problem!
05-17-2013 10:34 AM
sinbob
Quote:
Originally Posted by OverkillYJ View Post
Most likely low coolant or it is your thermostat or water pump. If there is fluid going down behind where your fan goes into the engine it is your water pump. If not that it is probably your thermostat stuck shut. Those are the two most likely things to cause it. Both are cheap and pretty easy fixes.
x2

Start with the thermostat....couple of bucks and 1/2 hour to change.
Another trick is to take the cap off and watch the water. Surging or bubbles.....check compression!!!!! If compression ok....water pump!!!
05-17-2013 10:29 AM
sevenservices when does it do it?
how hot does it get?
have you checked the fluid levels?
have you tested the thermostat in a pot of boiling water to ensure its not stuck shut?
05-17-2013 09:28 AM
OverkillYJ Most likely low coolant or it is your thermostat or water pump. If there is fluid going down behind where your fan goes into the engine it is your water pump. If not that it is probably your thermostat stuck shut. Those are the two most likely things to cause it. Both are cheap and pretty easy fixes.
05-17-2013 08:41 AM
banks316 What temp is your jeep running?

Have you had your radiator tested?

If your grab the upper radiator hose is it cool or burning hot?

How old is your radiator cap?
05-16-2013 10:09 PM
maiello22690 Low coolant, bubble in the system, bad head gasket... It could be any number of things. does your heat work when the system overheats? When my head gasket went, the heater blew cold but the temp needle was buried so I knew something was wrong.

Can you give me more details? What does your coolant look like. Is it green? Does it circulate with the engine running?
05-16-2013 10:00 PM
YjBrendle
Overheating!!

Cant figure out the problem. Any ideas as to why my engine is overheating?

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