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joverland
New User
Nov 2, 2016, 7:33 AM
Post #1 of 6
(1545 views)
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cooling system HELP!!!
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I have a 2010 jeep liberty 3.7L
I have been having troubles with it overheating..
I put in a new thermostat, radiator.. Bled out all air.. The system holds pressure, and will run iddle all day long.. As soon as I start driving (3 miles) she will red line.. It will spray out the pressure relief on cap... I cannot figure this out and I need my car!!! Please help!!!
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Discretesignals
Ultimate Carjunky
/ Moderator
Nov 2, 2016, 9:29 AM
Post #2 of 6
(1535 views)
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Re: cooling system HELP!!!
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Heater blowing hot?
Have you checked for combustion gases getting into the coolant system?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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kev2
Veteran
Nov 2, 2016, 9:50 AM
Post #3 of 6
(1531 views)
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Re: cooling system HELP!!!
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Scan for codes - even if light is off.
Is fan coming on?
As suggested any evidence of head gasket issue- coolant in oil, oil in coolant, Maybe check spark plugs, and those coolant/combustion gas test strips.
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Hammer Time
Ultimate Carjunky
/ Moderator
Nov 2, 2016, 11:37 AM
Post #4 of 6
(1526 views)
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Re: cooling system HELP!!!
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Yes, it sounds like typical head gasket issues, probably caused by an earlier overheating.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Nov 2, 2016, 11:58 AM
Post #5 of 6
(1524 views)
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Re: cooling system HELP!!!
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Yup - sprays out coolant in 3 miles and redlines - super strong indication of head gasket allowing combustion gasses in, T
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Wrenchly
User
Nov 17, 2016, 2:10 PM
Post #6 of 6
(1481 views)
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Re: cooling system HELP!!!
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A slipping water pump impeller is difficult to diagnose but it is a concern on this vehicle.
The plastic impeller has a steel center which is pressed on to the water pump shaft.
Sometimes the steel center insert cracks which will let the impeller rotate under slight
load such as idle but then slip when the rpm's increase.
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