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      08-12-2020, 03:18 PM   #1
0-60Motorsports
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Hey guys,

I have been having an issue over the last two years gradually. The water temp starts going past half way mark with the AC on. I have had the car since 2006 and never had this issue. The car has approx 48,000 miles. Temps here are around 115-125f with high humidity. Again never had this issue before. As soon as I turn the ac off the water temps
Drop to below half or half in a minute. I have changed or checked the following things:

New water pump
New thermostat
New condenser
Radiator is good (checked by swapping with a good rad from another car)
Expansion valve for ac changed
Drier changed
Oil cooler is good
Everything is clean too and has been cleaned again.
New ignition coils and spark plugs
Oil is new
Coolant flush has been performed many many times using vacuum method and old Skool with nose up and heating on.
No coolant loss
Car makes great power.

Any other suggestions because the only things I haven't changed are the compressor and evaporator but the ac works perfect and blows cold air no problems.

Any advice would be appreciated because I am really frustrated and in just want my car to be back to normal.
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      09-01-2020, 11:57 AM   #2
Eddien123
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Does the car overheat if the AC is on and you're driving? Or just standing still.
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      09-04-2020, 04:16 AM   #3
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Quote:
Originally Posted by Eddien123 View Post
Does the car overheat if the AC is on and you're driving? Or just standing still.
Standing still it overheats and then when driving it'll start at 3/4 water temp but then start dropping slowly.

So the problem might be solved finally. I'll report back once the parts arrive.
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      09-21-2020, 02:24 AM   #4
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Quote:
Originally Posted by 0-60Motorsports View Post
Quote:
Originally Posted by Eddien123 View Post
Does the car overheat if the AC is on and you're driving? Or just standing still.
Standing still it overheats and then when driving it'll start at 3/4 water temp but then start dropping slowly.

So the problem might be solved finally. I'll report back once the parts arrive.
Is the aux fan turning on with your A/C? Check the fan or fan resistor....just a thought.
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      09-21-2020, 05:40 AM   #5
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Quote:
Originally Posted by Kewl X5 View Post
Quote:
Originally Posted by 0-60Motorsports View Post
Quote:
Originally Posted by Eddien123 View Post
Does the car overheat if the AC is on and you're driving? Or just standing still.
Standing still it overheats and then when driving it'll start at 3/4 water temp but then start dropping slowly.

So the problem might be solved finally. I'll report back once the parts arrive.
Is the aux fan turning on with your A/C? Check the fan or fan resistor....just a thought.
Yes it is. I replaced it with a brand new one. Result was the same.
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