Over heating only on the highway

10

Asked by Jun 20, 2017 at 08:03 PM about the 2006 Jeep Grand Cherokee Overland 4WD

Question type: Maintenance & Repair

06 Jeep keeps over heating only on the highway?  
Just put a water pump and thermostat ,new
radiator and head gasket had the heads done and
checked the Jeep still over heating only on the
highway?

6 Answers

285

Have you done a compression test on each cylinder?

1 of 1 people found this helpful.
10

Yeah they are about 157 to 164

285

how was the flow through the rad once you replaced the items listed. Did you let it run long enough for the new t-stat to open and get good flow and air locks out of the system. I'm assuming you installed a 195deg t-stat. What temps are you seeing on the highway?

1 of 1 people found this helpful.
10

Yeah it's a 195 the Flo is good. the upper hose is boiling hot and lower is cold and if you take off the lower hose and put a bucket under it full of coolant it will suck up coolant.i have flushed it and vacuum filled the system i am lost everything works if you stay off the highway.soon as you get above 2200 rpm it will climb Temp

1 of 1 people found this helpful.
285

So the flo through the new rad was good, t-stat opened, coolant circulating prior to capping the system, Running pre- mix coolant or 50/50 mix all good. Before we consider bringing the bottom end into the discussion, How many klm's have been drivin since the new parts/ heads installed. When you say running hot above 2200RPM, what temperature was/is it hitting ? Do you have a working temp gauge ?

1 of 1 people found this helpful.
10

Yes with a scanner on watching the gauge.even with a didgtal thermometer . about 40 miles have been put on.

Your Answer

Grand Cherokee

Looking for a Used Grand Cherokee in your area?

CarGurus has 2,738 nationwide Grand Cherokee listings starting at $1,871.

Postal Code:

Jeep Grand Cherokee Experts

  • #1
    inuevafreak
    Reputation
    2,110
  • #2
    Tom Demyan
    Reputation
    1,890
  • #3
    thejeepdoctor
    Reputation
    1,790
View All

Related Models For Sale

Used Ford Explorer
46 Great Deals out of 1,364 listings starting at $3,900
Used Jeep Wrangler
91 Great Deals out of 1,586 listings starting at $2,488
Used Jeep Wrangler Unlimited
49 Great Deals out of 2,258 listings starting at $8,700
Used Toyota 4Runner
6 Great Deals out of 418 listings starting at $5,995
Used Dodge Durango
61 Great Deals out of 1,013 listings starting at $2,998
Used Dodge Charger
81 Great Deals out of 818 listings starting at $1,999
Used Chevrolet Tahoe
6 Great Deals out of 632 listings starting at $6,871
Used Ford F-150
456 Great Deals out of 9,066 listings starting at $922
Used Jeep Compass
70 Great Deals out of 2,140 listings starting at $1,995
Used Chevrolet Silverado 1500
161 Great Deals out of 10,662 listings starting at $100
Used BMW X5
32 Great Deals out of 745 listings starting at $3,200
Used Jeep Liberty
14 Great Deals out of 166 listings starting at $999

Used Cars For Sale

2018 Jeep Grand Cherokee Overland 4WD For Sale
1 listings starting at $65,585
2017 Jeep Grand Cherokee Overland 4WD For Sale
105 listings starting at $46,995
2016 Jeep Grand Cherokee Overland 4WD For Sale
26 listings starting at $44,900
2015 Jeep Grand Cherokee Overland 4WD For Sale
58 listings starting at $36,490
2014 Jeep Grand Cherokee Overland 4WD For Sale
69 listings starting at $24,900

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.