Have a Jeep with 4.7. Water pump went out and got hot.

Asked by Apr 07, 2016 at 09:29 PM about the 2006 Jeep Commander Limited 4X4

Question type: Maintenance & Repair

Replaced pump and thermostat.  Now still over heats.  tried to get out air
bubbles.  Lower rad hose is not hot but other hoses are hot.  Does not seem
to be losing coolant.  Could it be bad thermostat or put in wrong?  (friend put
in stat.)

3 Answers

285

Well coolant has to fill the radiator and run through the entire system, and of course the dreaded bleeding to insure no air. I recommend opening up the heater core by placing the interior switch and maximum heat, and then, with the vehicle running burp the system at its maximum filler point, whether radiator neck or filler reservoir, then add 50/50 mix as you give CPR to that "Lower Rad Hose," (squeeze it methodically). Also have a helper gently rev the motor and confirm that heat is coming through the vents. If you have heat in the cab, that's a sign that the system has flow, and hopefully by then that lower hose is hot! But remember that NEW thermostats can be quite resistant until they finally open. It is true...they often have some sort of threshold which must be superseded before they open up consistently. Just work it for a few minutes and keep an eye on that temperature gauge. That should do it my friend. But let me know how it works out!

1 of 1 people found this helpful.
1,730

If lower part of your radiator is not hot could mean your radiator is plugged and not allowing antifreeze thru to be cooled. A heater core can be hot and a radiator not be working at same time. They are two seperate systems of the cooling system. Sometimes radiators are restricted, car overheats, blows gaskets on water pump, etc and than we blame water pump when it was the radiator.

Tried several methods that have been suggested but none that worked. When we replaced water pump, there was a so-called "expert" there to help by replacing the thermostat for us. Who knew that you could put the thermostat in backwards!!!!! R&R Thermostat and everything seems normal. No damage to engine. Appreciate the suggestions.

Your Answer

Commander

Looking for a Used Commander in your area?

CarGurus has 1,754 nationwide Commander listings starting at $2,900.

ZIP:

Jeep Commander Experts

  • #1
    Theresa Cheek
    Reputation
    480
  • #2
    ncorliss
    Reputation
    150
  • #3
    Williams13
    Reputation
    130
View All

Related Models For Sale

Used Jeep Grand Cherokee
864 Great Deals out of 70,094 listings starting at $1,045
Used Jeep Wrangler
307 Great Deals out of 16,134 listings starting at $2,972
Used Jeep Liberty
229 Great Deals out of 7,089 listings starting at $1,000
Used Jeep Patriot
325 Great Deals out of 14,082 listings starting at $2,399
Used Jeep Wrangler Unlimited
334 Great Deals out of 41,162 listings starting at $5,750
Used Jeep Compass
272 Great Deals out of 35,993 listings starting at $2,000
Used Chevrolet Tahoe
658 Great Deals out of 39,224 listings starting at $1,000
Used Ford Explorer
805 Great Deals out of 62,574 listings starting at $1,000
Used Toyota 4Runner
265 Great Deals out of 21,370 listings starting at $1,700
Used Dodge Durango
296 Great Deals out of 21,140 listings starting at $2,195
Used Ford F-150
2,246 Great Deals out of 179,996 listings starting at $1,300
Used Honda Pilot
469 Great Deals out of 29,312 listings starting at $1,444
Used Dodge Charger
418 Great Deals out of 27,419 listings starting at $2,495

Used Cars For Sale

2007 Jeep Commander Limited 4X4 For Sale
8 Great Deals out of 98 listings starting at $4,500
2006 Jeep Commander Limited 4X4 For Sale
10 Great Deals out of 236 listings starting at $3,750

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.