Overheating

Tiny
KYLE B
  • MEMBER
  • 2001 LAND ROVER RANGE ROVER
  • 4.6L
  • V8
  • 4WD
  • AUTOMATIC
  • 128,000 MILES
I have the vehicle listed above and it ran really good, my wife was driving it one day (we use it as a spare car) to pick up the kids, and it starting to overheat. She stopped, pulled over waited for it to cool down, she eventually made it home. I looked and it was leaking coolant. I though it was the water pump, so I replaced it. Started it up and it had a leak still. I found that the throttle body heater hose was cracked and leaking. Replaced it. Took the vehicle out for a test drive, it overheated. Long story short, I replaced the thermostat, coolant reservoir, radiator, fan clutch, hoses, water pump. I do not know what to do now. It does not necessarily overheat in idle, it overheats driving over 30 mph. I checked the oil, no water or coolant, and no power loss and no white exhaust. When I refilled the coolant it took a little over three gallons. I am running out of ideas. Help please!
Wednesday, October 24th, 2018 AT 3:56 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
Hello,

Do you know where the coolant is going is it getting forced out when the engine overheats or do you see it on the ground? It sounds like it could be a blown head gasket still even though you have no white smoke or coolant in the oil. Here are two guides to go over to see what's going on.

https://www.2carpros.com/articles/head-gasket-blown-test

and

https://www.2carpros.com/articles/engine-overheating-or-running-hot

Please run down these guides and report back

Cheers, Ken
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Friday, October 26th, 2018 AT 10:50 AM

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