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overheating

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atucker293
New User

Dec 3, 2020, 8:47 AM

Post #1 of 5 (1999 views)
overheating Sign In
Hi - My 2003 Honda CRV is overheating and won't blow heat (just cold air). I put in a new thermostat and flushed/replaced the coolant, when I noticed the radiator fan isn't turning on either. not surprisingly, the new thermostat didn't fix the problem - still overheats and blows cold air. Any help is appreciated. Thanks!


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Dec 3, 2020, 9:11 AM

Post #2 of 5 (1991 views)
Re: overheating Sign In
It's still full of air + will overheat, heater not work + probably destroy the engine if not already. These don't just fill up with coolant when you drain them air it still locked inside not coolant so devices that sense temp are confused for items you notice now,


T



atucker293
New User

Dec 3, 2020, 1:31 PM

Post #3 of 5 (1968 views)
Re: overheating Sign In
Thanks! I bled the system and it's good now Cool


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Dec 3, 2020, 1:57 PM

Post #4 of 5 (1961 views)
Re: overheating Sign In
Great and hope that fully worked. Clue #1 if system has air is heater doesn't work yet it's smoking hot. Repeat the note that sensors for temp and fans or even coolant level if equipped (that might work) are confused by air vs liquid the info isn't trustable.
Know that, tons of ruined engines out there over just this you just can't trust air locks will pass to top and be removed like some still will, most don't.
Be warned bleeder things for these or not if heater is erratic you are NOT done yet,
T



Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Dec 3, 2020, 1:57 PM

Post #5 of 5 (1960 views)
Re: overheating Sign In
You TEMPORARILY fixed it. You haven't found the original leak that caused it to be low in the first place. You need to pressure test the cooling system to find the leak that started it all.



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