bleeding air out of coolant system

Kneale Brownson knotnook at
Fri May 24 21:02:50 EDT 2002

At 06:31 PM 05/24/2002 -0400, Brett Dikeman wrote:

>At 3:52 PM -0400 5/24/02, Kneale Brownson wrote:
>>1.  Set heater control to "warm"
>>2.   Fill at the expansion tank until it won't accept more.
>>3.   Run engine and continue to replace the coolant in the tank until the
>>level remains constant.
>>4.   Install expansion tank cap.
>>5.   Continue running engine until cooling fan operates.
>>6.    Check coolant level and top up as necessary.
>Okay...did the above, and the coolant level didn't do much...crept up
>slightly, if anything, as the engine fully warmed up.
>Once the fan had run, I replaced the cap and shut the car off.
>No gurgle/bubbling noises...but I bet that if I take it for a drive, it'll
>come back and be a-burblin'.
>IF that happens, what am I looking at?  Head gasket failure?  It's hard to
>tell, but I guess the exhaust smells a little sweet; the O2 sensor came
>out with white crap all over the half facing the turbo. Tailpipe does not
>have any white residue.
>The car does not really consume much coolant at all(I think); every once
>in a blue moon I happen to peek over and see the tank is a little below
>the min level and top it off; that was, however, with the old cap, which
>was replaced today(and was leaking somewhat.)

Heater core pinhole leak;  same for out-of-view plumbing to the heater
core;  real gradual leak around the after-run pump's plumbing;  leak
associated with the turbo's coolant plumbing; slight leak of water
pump/seal hidden behind front engine cover??????

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