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Overheating with A/C on.

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Old Jun 18, 2011 | 08:33 PM
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Default Overheating with A/C on.

Alrighty guys, haven't seen much of anything like this except on Fords.

I just installed an A/C system on the Z (compressor, dryer, the works). Drives fine and whatnot, but after a few miles, the temperature will start to slowly creep up, especially in stop-and-go. Keep in mind that it only does it with the A/C on. Once I shut the cold air off, the needle nudges back down to regular temps. Already replaced the thermostat, cap, and bled the system (might do it again for safe measure). Any ideas?
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Old Jun 18, 2011 | 09:33 PM
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are your fans coming on?
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Old Jun 18, 2011 | 09:51 PM
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Yes they are.
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Old Jun 18, 2011 | 09:57 PM
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is there a fan that runs constantly while the ac is on
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Old Jun 19, 2011 | 03:31 AM
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Yes there is.
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Old Jun 19, 2011 | 12:53 PM
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Thanks for moving the thread mods! Maybe I'll get some more hits on it in this section.
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Old Jun 19, 2011 | 11:30 PM
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Just do it.
Only thing I would do differently than what I describe in this thread....take the condensor out and have it cleaned at a radiator shop. Don't do the banging method......but it did work fine for me.

https://ls1tech.com/forums/general-m...bably-why.html

.
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Old Jun 20, 2011 | 12:39 AM
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Pull the plastic upper radiator support (that the lid snaps onto), and check between the radiator and condenser for trash, rocks, plastic bags, etc.. Also get underneath the car and check the front of the condenser for the same.. the F-bodies are bottom feeders when it comes to air, and they suck up garbage constantly. Lastly, check your cooling system for proper flow. If you drained coolant recently, there is a possibility it needs to be "burped" via the top hose.. If it STILL has issues, check the thermostat for proper operation.

Last edited by 67RSCamaroVette; Jun 20, 2011 at 01:28 AM.
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Old Jun 20, 2011 | 06:11 PM
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Originally Posted by LS6427
Just do it.
Only thing I would do differently than what I describe in this thread....take the condensor out and have it cleaned at a radiator shop. Don't do the banging method......but it did work fine for me.

https://ls1tech.com/forums/general-m...bably-why.html

.
That's a great thread and I was sure you had answered my question when I saw the title, but unfortunately, the condenser was cleaned right before installation and the radiator has been cleaned a couple months ago. I'm down to the point of just bleeding the system again and hoping that will fix it. I hate cooling systems with a passion.
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