Engine Coolant overflow

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Mar 19, 2011 | 05:18 PM

tjwwheel

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Engine Coolant overflow

Hey just was seeing if any of yall might have an explination for this,

Just rebuilt a stock LT1 and was driving it around today. Got home and check on the engine, cuz its still pretty new and was making sure everything is tightened down and all, and i realized that the engine coolant was overflowing out of the cap (bubbling and making hissing noises) . I waited a little while and went to releive some of the pressure that it had and it shot up like a guyser. Lost about a gallon of the stuff.

Could this simply be because it was overfilled? Or now that the weather is warmed up it built more pressure?

any explinations are appreciated

Mar 19, 2011 | 05:20 PM

ZFreie

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From: New Hampshire

Sounds like you have the steam pipe and overflow tube mixed up on the radiator. I'm sure others will chime in tho.

Mar 19, 2011 | 05:21 PM

shbox

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From: Little Rock, AR

Coming out the radiator cap or reservoir cap? If it is the latter, I would suspect you have the steam line and the remove reservoir line reversed at the radiator. If it was spewing out the radiator cap, either the cap was not on all the way or the cap may need replacement.

Mar 19, 2011 | 05:25 PM

LigHtEmUp01

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prob has air in the system try bleeding it with the bleeder screw on the hose going to the right side of the water pump let it run and crack it open until coolant omes out so make sure all the air is out

Mar 19, 2011 | 05:31 PM

stevo9389

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From: Clearwater

i have had both a reservoir return line mixed up and a bad radiator cap cause both on me. if the cap is more than a year old replace it anyway after checking the lines of course.

Mar 19, 2011 | 05:36 PM

tjwwheel

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it was coming out of the radiator cap, right next to the battery. So maybe it wasnt on tight, i'll screw it on and run it for awhile to see what happens