Radiator hose gets hot

Tiny
BSENECA
  • MEMBER
  • 2007 JEEP WRANGLER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
Okay, so my top radiator hose gets really tight and hot. I changed the water pump, the thermostat, the radiator and even put a new radiator cap. Is the hose suppose to be hot and tight? The gauge does not register hot it stays in the normal range. I just do not know what else it could be. Please help!
Do you
have the same problem?
Yes
No
Tuesday, August 23rd, 2016 AT 4:00 PM

12 Replies

Tiny
CJ MEDEVAC
  • EXPERT
One of these might be helpful to determine the coolant temperature at the radiator inlet (outlet too!).

For that matter, I sometimes use mine to look for cool(er) spots in a radiator (where it is restricted or stopped up with mineral deposits).

Your top hose will probably be around 195 maybe as high as 210 degrees (your thermostat should be rated at 195 degrees).

You think the hose is overly tight? Is it really squishy with it cold/ engine off?

The Medic
Was this
answer
helpful?
Yes
No
Tuesday, August 23rd, 2016 AT 4:24 PM
Tiny
CJ MEDEVAC
  • EXPERT
Okay.

Link was a no show!

Here you go!

http://www.autozone.com/test-scan-and-specialty-tools/thermometer/oem-infrared-thermometer/951642_0_0/?checkfit=true

The Medic

Was this
answer
helpful?
Yes
No
Tuesday, August 23rd, 2016 AT 4:43 PM
Tiny
BSENECA
  • MEMBER
It is soft not really squishy. It is squeezable though! It may feel softer to a male, but I can squeeze it with ease.
Was this
answer
helpful?
Yes
No
Tuesday, August 23rd, 2016 AT 5:26 PM
Tiny
CJ MEDEVAC
  • EXPERT
Compare its squish-ability to the lower hose.

Your radiator cap should be rated at 18 PSI (which means it will/ should [if it is serviceable] hold in 18 PSI, This is two more PSI than my 1977 CJ-5s Radiator cap is (16 PSI). A bad radiator cap can hold too little pressure, seldom seen, but it can hold too much too.

Should you decide to get a new cap, I recommend this type.

http://shop.advanceautoparts.com/p/carquest-caps-and-stats-lev-r-vent-radiator-cap-10334/10049281-P?searchTerm=radiators+caps

It will sort of let you know if there is pressure when you lift the lever, it will bleed it off before you unscrew the cap. Getting scalded is pretty much not going to happen, unless you unscrew the cap before lifting the lever has bled off the pressure. This cap designed so that you must lift the lever to unlock it so it will screw off.

Your Turn Jeep Girl

The Medic
Was this
answer
helpful?
Yes
No
Tuesday, August 23rd, 2016 AT 6:07 PM
Tiny
BSENECA
  • MEMBER
Yes! That is the cap I got the other day! The bottom hose pretty much feels the same as the top one cold. I never really felt it after getting to driving temperature. I was always scared I would get burned.
Was this
answer
helpful?
Yes
No
Tuesday, August 23rd, 2016 AT 7:13 PM
Tiny
CJ MEDEVAC
  • EXPERT
I have had nothing but CJ's since I got my license in 1981 (seven total)

1-5 were my experimental Jeeps (I experimented with them to see exactly what they could and could not do.) 1-3 sustained a good bit of hell damage. I sort of was easier on 4 and 5!

I now have 6 and 7. Got them both in 1991.

"Mr. Jeep" is a 1977 CJ-5 w/ 258 6 cylinder made one payment of $2400, he now has lots of user friendlier upgrades/ modifications. He has been my primary transportation for the last 25 years.

The other is "Willy", my 1946 Willy's Jeep w/ a 134 flat head four cylinder engine, one large payment of $100.00, lots of "side jobs", lots of late nights, and two years later he left "my motor pool" in 1993 looking really handsome, I drive him every chance I get!

"Mr. Jeep", "Willy", "He", "Him" reference "Real, Manly, and Masculine" Jeeps, There have never been any "Sissy's" in my garage!

Bringing me to this point.

I go overboard with my Maintenance and Preventative Maintenance!

Usually "on time", many times I will do stuff before its time to. I change my thermostat every year (need to or not!). I change my Radiator and Heater hoses before five years has passed. Rubber fuel lines maybe every two years.

If something looks funny - Yep, I change it!

If it breaks, I immediately fix it! (even if it is not crucial)

Hoses do not cost a bunch, if you are concerned, change them puppies!

My picture below are just some of the references I have for my Jeeps, most have a "PM" section in them to guide you in remembering and how to perform the tasks. If you want your rig to last forever (like mine are sorta doing now) You will catch up on your PM, this includes changing fluids (like transmission, transfer case, axles, etc) either on a "time" or "mileage" schedule.

I seldom "buy" parts for Mr. Jeep anymore, I keep up with lifetime warranty receipts (Mr. Jeep is full of lifetime parts! ) They usually they honor my request since I have the original receipts

See my answer on "Thursday February 17" (dates are at the bottoms of the answers) in this link.

https://www.2carpros.com/questions/1984-jeep-cherokee-cj7/page/4

Question is,

Do you really Love your Jeep?

No doubt, I Love Mr. Jeep and Willy!

Your Turn

The Medic

Was this
answer
helpful?
Yes
No
Tuesday, August 23rd, 2016 AT 8:45 PM
Tiny
BSENECA
  • MEMBER
She is my baby! I do not let anyone touch anything under her hood. If I cannot do it she has to go somewhere where they specialize in jeeps! I have a 2013 challenger also but my jeep is my baby!
Was this
answer
helpful?
Yes
No
Tuesday, August 23rd, 2016 AT 9:32 PM
Tiny
CJ MEDEVAC
  • EXPERT
Really nice Jeep!

Sell the Challenger so you can buy more Jeep accessories

So what's the plan with the hoses?

The Medic
Was this
answer
helpful?
Yes
No
Thursday, August 25th, 2016 AT 8:30 PM
Tiny
BSENECA
  • MEMBER
Ok I'm back at it! Had to put it on hold a couple weeks to clean out my shed that got flooded in our historic flood down here in Louisiana. So I did the air in the hose test and it really must've had a lot of air trapped. Now my hose doesn't get really tight it seems tone what that problem was. NOW I'm smelling soy coming out the a/c vents. Could that be coolant perhaps? It's killing me not being able to drive her!
Was this
answer
helpful?
Yes
No
Friday, September 16th, 2016 AT 1:21 PM
Tiny
CJ MEDEVAC
  • EXPERT
It has a sweet smell (sorta)?

This may be a heater core with leak in it. (White paper towel under the a/c drain, might show green or red coolant, whichever you use-Where it drips on the ground)

It might also be as EZ as the heater hose connections to the core, they might have loose clamps or connections. This might allow the end of the hose to leak into the housing.

The Medic
Was this
answer
helpful?
Yes
No
Friday, September 16th, 2016 AT 4:06 PM
Tiny
BSENECA
  • MEMBER
It's not really a sweet smell, it's not a good smell, kinda smells like coolant but I bypassed my heater core a while back to see if that was the problem and never put it back.
Was this
answer
helpful?
Yes
No
Saturday, September 17th, 2016 AT 9:28 AM
Tiny
CJ MEDEVAC
  • EXPERT
No water to core, no smell from it!

Have you found the source?

Did the flood mess your life up or just a minor setback?

The Medic
Was this
answer
helpful?
Yes
No
Sunday, September 18th, 2016 AT 6:59 PM

Please login or register to post a reply.

Recommended Guides