Kevin,
      Why not consider the obvious?   Replace the blue
coolant cap and keep the old one as a spare.   Perhaps
this is just a lucky warning before it really gets
hot.
          gary
Date:    Fri, 17 Jun 2005 19:10:02 -0700
From:    kevin obrien <kevindobrien@YAHOO.COM>
Subject: Strange, brief venting of coolant...? Advice
sought.

Hello All:

Today I travelled about a mile uphill in my 1990 Carat
and pulled over to make a phone call.  As I sat
idleing I noticed my red coolant light began blinking.
  I checked the coolant temp gauge and it was reading
normal.

I turned off the engine, made my call and started her
back up.  No more blinking light and all seemed
normal....temp gauge reading ok, etc.

I drove about a half hour...went up a small
hill...stopped at a bank.  Sat for a minute and
started her back up and noticed steam coming out of
the rear air scoop...and coolant on the ground.  Temp
gauge read normal.

I looked in the engine compartment and saw some
coolant had dripped down...but none spraying about,
etc. Not clear where it came from.

Anyway...started her back up...drove up a LONG 5 mile
hill....watched my coolant temp gauge...it never moved
above the red light (ie: normal). No sign of any more
coolant. No blinking light. No sign of overheating.

I don't know if this is relevent :  I had my oil &
filter changed the other day (Castrol 20/50 and a Mann
oil filter) and the only thing I've noticed is the
reading on my VDO Oil Temp gauge is reading slightly
higher than it used to on hills.

VDO Oil Pressure gauge is reading normal. Engine
power/performance seems fine...and as I said ...no
sign of overheating at all according to my coolant
temp gauge.

Any ideas as to why the coolant leaked?

Thanks
Kevin

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