07-20-2012, 03:45 AM
Join Date: Jul 2012
Overheating with half-cold radiatior (2nd in a row)
1. I searched and checked existing posts about overheating and could not find an answer to my problem readily. So, please allow me to bring up this topic again.
2. I changed radiators in a following sequence (I am the original owner of my 2000 TJ):
(a) Factory original (due to a leak between the upper reservoir and the core, No overheating) -
(b) New one - after a year/8000 miles it started to overheat.
I touched the core with my palm from the engine side - the right (passenger) half of it was hot while the left (driver) side half cold. Flushing did not help.
(c) Swapped it back to the factory original (which I kept) - No overheating, living up with that minor leak
(d) Put another new one in (authentic, at the Jeep dealer) - and now, 2 years later, it started to overheat in the same way - the right (passenger) half hot, the left (driver) side half cold.
NB: have a functional airconditioner but don't use it. The car is kept clean and used on paved roads only. The cores of the AC and the main radiators are clean.
More specifically, during the first 10 minutes of driving I notice that the thermostat is working well (temperature going up to the thermostat treshhold, just above the middle notch on the gauge, then a bit down, then climbs up.)
I am able to drive in this hot summer weather, but on the top edge before boiling. Coast downhill on neutral to knock the temperature down (it helps).
City stop and go or highway 70 mph - same problem.
I think Chrysler should know about this/
Any idea (to the point, please)?