Question about 2005 Jeep Liberty
Recently(about 15 days ago) had my 2005 Jeep Liberty 3.7 engine cooling system flushed and new Valvoline coolant added at50% rate. On Friday October 26th went on a trip of about 138 miles. Parked the Jeep, did some walking and shopping for about 3 hours. Took a ride to about 8 miles, alarm went off, notice the temperature was at the 3/4 mark, turned around and pulled over and let cool down. Got back to the hotel and let the engine completely cool down. Left the next morning and made it about 109 miles with no problems, stopped at a store on the way home for about 30 minutes, had about 28 miles to go, after about 12 miles went above the 3/4 mark, pulled over and found a hose to cool the radiator and hose near the thermostat, made the next 16 miles to get home but got to the 3/4 mark again. What is going on?
Posted by Anonymous on
It's overheating, for sure,
is coolant levels dropping? cold checked at rad cap?
"pulled over and found a hose to cool the radiator and hose near the thermostat,"
i can not understand this statement"above"
if it overheat only parked, check fan for full ops.
if overheats moving too, wont stay cool moving fast
bad rad cap
bad thermostat , they have 7 year life says STANT. (and why)
belts slipping (to water pump)
rad cores blocked (IR thermo gun it) ask
water pump impellers rust 1/2 gone?
all this assumes no coolant loss, if you have loss, tell where.,
where it leans
passengers toes (foot well)
engine oil pan? milky oil
if A/T TRANS, check it for milky too.
Posted on Mar 17, 2017
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Posted on Jan 02, 2017
thermostats are fairly reliable considering how cheap and simple they are.
They can and do sometimes fail (nothing is perfect). the cause is pretty much that they just stop working, usually because the internal movable part jams.
I believe a company called robertshaw makes what they claim is a "lifetime" thermostat...I doubt if it actually will last that long but may be a slightly better unit to use as a replacement.
I would use the opportunity to check the fan(s) to make sure they are working properly, that the radiator is not externally or internally obstructed and to replace your coolant.
if the overheat condition persists, check (or have checked) to make sure that there are no hydrocarbons in the radiator (indicates a cylinder head gasket leak) If your gasket has failed, it needs immediate service or it will cause serious secondary damage to the engine.
Posted on Apr 30, 2010
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