A bad thermostat - if stuck in the closed position, will cause the
sensor to blow out of the tank. BTDT!

Try pulling the thermostat, put the coolant level sensor back in, and
give it a hard run. If the sensor pops out again, you prol'ly have head
gasket issues to deal with.

Best!

Regards,

John Rodgers
88 GL Driver

kevin obrien wrote:

>Hello All:
>
>After a long uphill stretch tonight I found coolant
>leaking and my Sensor popped out of my Coolant
>Expansion Tank.
>
>I had been watching my temp gauge and it didn't
>register overheating at all.
>
>Now I'm sitting here steaming (like the coolant
>spilled on my engine!)...contemplating yet ANOTHER bad
>head gasket scenario!!!  I just replaced this engine
>45K or so ago...because I was battling suspect
>combustion gasses!
>
>Can anything else in my system be causing this
>scenario? I had a new radiator installed along with
>this engine...so I assume it is good.
>
>What is the DEFINATIVE test for combustion gasses
>leaking?
>
>Can anything else cause my Sensor to pop, etc?
>
>Thanks in advance for suggestions...
>
>Kevin
>
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