2014 Wrangler 3.6 Overheating

[byoung023]

I Have been through 3 thermostats, replaced the water pump, flushed it twice, and im still having an overheating issue, and im at a loss for what to do next any ideas,
Context, all flushes/bleeds done with front end lifted 6+inches, with a coolant funnel.
No heat in the cab now as well, and the temp will fluctuate from 218-245

 

[BLACKJKU]

Are you loosing coolant?

 

[byoung023]

Are you loosing coolant?

No coolant loss at all which is weird but nothin

 

[tJKrider]

Did this start with an overheating issue or was that a result of a water pump (or other part) change? I would do a combustion leak test on the coolant if you haven't already.

 

[byoung023]

Problem started a while back at first the thermostat went, had that happen 3 times after the second i did a combustion leak test showed nothing…. Replaced the thermostat again, fixed the problem for about 4 months then recently it had a bog overheating episode had the car towed home, gonna run another leak test friday, as well as replacing coils and plugs due to the overheat, i got a misfire.

 

[Pepperbelly]

Are you absolutely certain all the air has been burped out?
I had an overheating problem right after I bought my JKU used from a dealer that only stopped when I burped it. Fortunately my driveway is sloped.

 

[byoung023]

Are you absolutely certain all the air has been burped out?
I had an overheating problem right after I bought my JKU used from a dealer that only stopped when I burped it. Fortunately my driveway is sloped.

Ill be doing it again tonight if i can find time