[Shotimes] Radiator Overflows AFTER engine is turned off ?

[Mike Kopstain]

Phil,

When my 93' blew it's headgasket it exhibited the same symptoms.  It would
run hot and bubble through the overflow tank (This is because the piston was
pumping air into the system) and when I shut it off it would suck that
coolant back in after awhile (8 hours) after the pressure went down.  The
result was a shreaded rear head gasket.

I would be happy to take a look at it if you can get it up here some
morning.

Best Regards,

Mike

Midwest SHO - For Everything SHO!
www.midwestsho.com
Sales@Midwestsho.com

The W Body Store - Grand Prix, Regal, Impala...
www.wbodystore.com
Support@wbodystore.com
----- Original Message -----
From: "Phil Piotrowski" <philpio@pjpai.com>
To: <shotimes@autox.team.net>
Sent: Monday, May 10, 2004 5:02 PM
Subject: [Shotimes] Radiator Overflows AFTER engine is turned off ?


> I replaced the radiator (is was leaking in the cold)
> After the weather warmed up, and shortly after an oil change,
> I noticed that while is stop and go traffic that the temp gauge
> Was near the N in Normal (pretty hot from my experience) !
> I pulled over, opened the hood, and turned the engine off.
> Within a minute, the antifreeze was bubbling out of the overflow tank !
> When it cooled, it sucked all the coolant out of the overflow tank.
> When I got home, I ran the engine with the hood up, and the temp gauge
would
> get to about the O, before the fan would start and get the needle down to
> about the M.
>
> If I am moving on the highway, the temp  gauge is normally on the L in
> Normal.
>
> Several times, I have gotten home, put the car in the garage, and then in
> the morning, the 'low coolant' light will be on.
> When I go to fill it, it looks like the coolant boiled out again !  It is
> all over the floor.
> I have checked the overflow tank, it does not leak.
> I did replace the thermostat (it does have the 'giggle' value, and is
rated
> for 190 degrees (AutoZone said that was stock))
>
> Any ideas as to why this is happening and how to fix/troubleshoot it ?
>
> Thanks to all,
>
> Phil Piotrowski
> '95 MTX - "DR VMS" - 170K
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