Overheating only when driving.

AMEChambers

New member

• Jul 18, 2015

• #1

Hello all, wave from Jacksonville, Florida. It's been a while since my last post. Yesterday I was driving my 2007 jku and the a/c started blowing warm and the temp gauge hit 3/4... Similar symptoms I got two months ago when my radiator blew. I pulled over to let it cool and check things out... Coolant was boiling hot... Started to drive home and it would over heat about every mile... Took an hour to drive the four miles home. I'm confused because it only overheats while driving. The radiator, thermostat, hoses, coolant are all two months old. I'm leaning towards a bad water pump.. Does this sound like a correct diagnosis to any of you?

 

M

MacjeepMaster

New member

• Jul 18, 2015

• #2

Sounds like it very well could be the water pump if the rest had recently been replaced. Also check out this thread to make sure the correct coolant is getting into your 2007. http://wayalife.com/showthread.php?t=13239

 

Moochie

Active Member

• Jul 18, 2015

• #3

Is your fan coming on?

 

AMEChambers

New member

• Jul 18, 2015

• #4

Yeah fan is on high. The correct Fluid has always been added... I'm thinking water pump since the pump is belt driven and it only overheats when under load. It's only 40$ and a few bolts. If yall can think of anything else please let me know. I'm changing the pump tomorrow so fingers crossed!

 

seanb123

New member

• Jul 18, 2015

• #5

Have you been in mud recently

 

AMEChambers

New member

• Jul 18, 2015

• #6

No mud man... Just point a to b on pavement at least a year...

 

seanb123

New member

• Jul 19, 2015

• #7

AMEChambers said:

No mud man... Just point a to b on pavement at least a year...

Click to expand...

I've done the water pump a few times on mine. Last time you could hear that it was defective by taking the belt off and trying to spin by hand.

 

AMEChambers

New member

• Jul 20, 2015

• #8

Just changed the water pump... No joy. Still overheating. To recap two or three months ago I changed the radiator and thermostat because the radiator sprung a leak. Now the water pump was changed for the overheating issue. I'm at a loss. Any recommendations would be greatly appreciated! As always thanks for the help.

 

robertoloco

Member

• Mar 23, 2016

• #9

AMEChambers said:

Just changed the water pump... No joy. Still overheating. To recap two or three months ago I changed the radiator and thermostat because the radiator sprung a leak. Now the water pump was changed for the overheating issue. I'm at a loss. Any recommendations would be greatly appreciated! As always thanks for the help.

Click to expand...

Looking to find out what your problem is as my 08 started overheating today.

 

D

Drdiesel1

New member

• Mar 23, 2016

• #10

Head Gasket Failure!

 

kentuckianajk

New member

• Mar 23, 2016

• #11

Double check make sure the thermostat is working properly.

 

WJCO

Meme King

• Mar 23, 2016

• #12

Thermostat is an easy check with a temperature laser. When engine starts to overheat, if tstat is stuck closed, you'll have way different temperature readings on each side and radiator hose won't feel pressurized.

Make sure your fan is working too and that your radiator isn't clogged with a bunch of mud and debris.