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

Will I damage engine while purging air?

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Old Jul 4, 2008 | 07:28 PM
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Default Will I damage engine while purging air?

Low coolant light is on because I changed coolant this morning in my '87 and am still trying to get air out.engine running rough & red light on little black tps box.I have FSM & read search stuff.Just can't figure it out.Would appreciate some help.Thanks in advance.
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Old Jul 4, 2008 | 07:51 PM
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I answered in your other post over in C4 General. Just went through this yesterday. It sounds like you have an air pocket and need to "burp" your system.
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Old Jul 4, 2008 | 07:58 PM
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Thanks.I decided to post here thinking that maybe this would be a more appropriate area for my problem,since the last time I checked no one had answered.I'll get over there right now.
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Old Jul 4, 2008 | 08:06 PM
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"low coolant" lite goes active every time i open the system for 20 years now...just "top off" the rad every day for abt a week and the lite will give up.
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Old Jul 4, 2008 | 08:17 PM
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Thanks redrose.I'll keep at it.
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Old Jul 4, 2008 | 10:17 PM
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is this the TPS box? http://www.mamotorworks.com/corvette?frame=1.858
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Old Jul 4, 2008 | 10:21 PM
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Originally Posted by Vette73
is this the TPS box?
that's what I was thinking.......what is a TPS box?? and why?
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Old Jul 4, 2008 | 10:29 PM
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Originally Posted by Vette73
It's very similar to that.
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Old Jul 5, 2008 | 02:40 PM
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The low coolant lamp is lit by a float switch. It could have stuck when you drained the coolant. As long as you know there is enough coolant in the system and the car is not running hot, don't worry about it.

Drive the car and check the coolant when its cool. The switch will hopefully start floating again. Give it a few days like someone said before.
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Old Jul 5, 2008 | 06:00 PM
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Thanks for all of the responses with advice.I followed capevettes suggestions and my coolant problem has been resolved.I am a happy camper .
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Old Jul 6, 2008 | 06:54 PM
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my 87 does the same thing. i check it when its cool and its fine. runs in the upper 190s to 210 but light still comes on occasionally. as long as it runs cool im not too concerned with it.
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