C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Puzzling Coolant Issue

Old Dec 13, 2012 | 02:29 PM
  #41  
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Originally Posted by pcolt94
Two bad stats, anything is possible. But at this point you might want the get a kit from an auto parts store and check for exhaust gases in the coolant. It may not be a great suggestion or the problem but at least that might me one area to eliminate.
T-stats are cheap. I always put them in a pot on the stove and verify they open before use, new or not. Sorry to hear you are having problems again.
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Old Dec 13, 2012 | 05:10 PM
  #42  
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Yea i verfied before install. But im about to pull the radiator and check it. Car is doing okay though, able to still drive it regulary, just this retarded thing keeps surfacing
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Old Dec 13, 2012 | 09:46 PM
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You'll get it..

When you Back flush the radiator pack some rags around the garden hose when you shove it inside the radiator out-let tube connection, and give it a good blast. Keep the inlet hose connection (left upper) down low so gravity will assist.

Question; When you start the car Cold how quickly does the Steam pipe heat up? (Head cross over tube)
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Old Dec 13, 2012 | 10:45 PM
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Pulled the radiator. Found little deposits of red silicone when i used water hose on radiator.Must have came from water pump gasket when i installed it Only got three decent size pieces out. Must be more in there and i must have moved them aeound, cause the temp continues to rise and i cant drive anywhere. The bottom rad hose is cold and fullnof air, i did bleed the system. Thinking about taking rad out and putting my second one in. Quess ill have to take my wifes c6 tomorrow to work
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Old Dec 13, 2012 | 11:04 PM
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which side of the radiator did you push the water through.. as viewed from the driver seat.
-Left to right
-right to left
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Old Dec 13, 2012 | 11:55 PM
  #46  
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Originally Posted by desertmike1
which side of the radiator did you push the water through.. as viewed from the driver seat.
-Left to right
-right to left
I pushed both direcrions
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Old Dec 14, 2012 | 12:17 AM
  #47  
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OK.. It's possible that there are chunks wedged inside of your Cross tubes blocking flow.

What shape is #2 Radiator in, why did you replace it?
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Old Dec 19, 2012 | 08:50 PM
  #48  
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I replaced it thinking it my rad that was causing my overhearing issues a few montjs ago, when really it was the bars leak stuff.

So over the past week, ive put old radiator in, didnt seem to help at all. Did some coolant flushing and it ran good for a day. Came home one morning from it overhearing twice in a matter of hours, noticed the bottomnrad hose was cold, went inside took to clean up from pt, went back outside and took the t stat out. Have had it out for past 4 days, havent had any issues since, just takes a while to get to operating temp

Ryan M
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Old Dec 21, 2012 | 12:30 PM
  #49  
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Interesting.. What temperature do you see while Cruising at Highway speed with out Stat.
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Old Dec 21, 2012 | 04:56 PM
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It constantly gets lower, depending on outside temp. Other day i was in town driving at 166, hit highway for about five min, temp dropped to 149, granted its n its 40s outside. Highest it gets at idle was 185-190

Last edited by JAKE-SON; Dec 21, 2012 at 04:58 PM.
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