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Old 06-13-2015, 11:11 PM
Pyasher Pyasher is offline
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Default Running Hot

I have an unusual situation. If the car idles the temperature stays at 190. On the highway so long as I'm on the flat it stays around 195 however once I start up a hill and put a load on the engine the temperature rises up to 200 - 205"?... Ideas?
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Old 06-13-2015, 11:28 PM
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chevymaher chevymaher is offline
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sticky t-stat?
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Old 06-14-2015, 06:52 AM
Pyasher Pyasher is offline
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Quote:
Originally Posted by chevymaher View Post
sticky t-stat?
I dont think so because it is related to load...
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Old 06-14-2015, 07:36 AM
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My van was doing the same thing. Heating up climbing hills. I think it was just years of junk in the cooling passages in the heads. Once they were acid dipped it cut that out. I did put in a lower temp T-Stat as well. 195 to a 185.
A t-stat that dont open completely up will do that. It has enough flow to dissipate the heat under normal circumstances. But under higher load and heat it isn't flowing enough for that.
I just throwing ideas out there. It is a fishing expedition until you actually solve it tho.
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Old 06-14-2015, 04:57 PM
Pyasher Pyasher is offline
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Thanks Chevymaher that makes sense - tstats are cheap so that will be first.

Last edited by Pyasher; 06-14-2015 at 09:09 PM.
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Old 06-22-2015, 07:22 AM
Pyasher Pyasher is offline
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It turned out to be 2 things. I found a vacuum leak (Carb gasket) and I re-bled the system and got some more air out. I also replaced the fan clutch just because. I thought that was the final fix. The engine idles great even with the A /C on. I took it for a ride and the temp was still up to 205 under heavy load so I decided to check the accuracy of the NEW temp gauge I installed last year. Purchased a laser thermometer at H.F. and the temp at the water neck is 190 when the gauge reads 205 which from what I have read is normal. Hope this helps someone else! Thanks for all the advice!
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Old 06-22-2015, 02:47 PM
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Hank70SS Hank70SS is offline
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You're right. If your temp sender is in the side of the head it will typically read 10-15 more than t-stat
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