I do what Bill does and carefully pull the lower radiator hose to flush on
all my Chryslers.

Bob


"maxpower" > wrote in message
. ..
>
> "DLH1" > wrote in message
> news
>>
>> thanks, Guys. I will look for it in that location the next opportunity
>> I have.
>>
>> That turn and pull type petcock is vintage chrysler. I would have
>> thought they would have gone to something better and more reliable by
>> now, but I guess not. Thanks.
>>
>>
>> --
>> DLH1
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>
> What normally happens when you try to turn the pet cock is the seal
> (o-ring)
> rips inside and you don't realize that it has until you go thru the
> trouble
> of trying to bleed the air out. Looking down you see coolant dripping out.
> Now you have to drain it again and replace the valve (o-ring).
> What I do is soak the valve with a good penetrating oil and as you turn
> (counterclockwise) pull out on it until it starts to flow. The other thing
> to do is purchase a new valve and replace it at the same time. The part
> number is 4758290, probably about 10 bucks
>
> Glenn
>
>