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Re: 5000/100/200 Heater Control valves

I just (Friday) got my 91 200q out of the shop after replacing *all* water
hoses, thermostat and multifunction switch - drove about 5 miles and blew
the heater control valve - dealer cost - $62.04

mike miller

>      Dave is right, Run fast!!  Two years ago on a hot California day 
>      with the AC on and the radio too loud my heater control value 
>      blew while doing 80 down the 405.  The cheap $35 plastic valve 
>      ended up costing me $2000 to have the head rebuilt because the 
>      engine over heated.  So everyone, go replace your heater control 
>      valve now!!!
>      Chris
>      '87 5KCSTQ
> If yer heater control valve (directly in front of steering rack) is over
> years old and real yellow, run - don't walk to the dealer and get a 
> replacement. Keep yer old one as a spare. Had one blow today and all
> exited within about 1 minute - thereby NOT showing on the temp guage. Yer

> only warning will be the overheat/low level warning.
> Of course, I always run synthetic to provide the extra protection in
> cases - even though I was stuck inna turn lane and had to wait a bit to
> parked, no apparent damage.
> Dealer cost - 35.00, avail mail order/discounted at about 18.00...