Car Stuck! Engine Coolant boiling over

[mike]

my money's on the fan switch

mike


--- SJ <syljay at optonline.net> wrote:
> 90 100q, normally aspriated, manual
> 
> Wife drove car to a wedding shower. When she pulled
> into the parking lot,
> the expansion tank boiled over. The parking guys
> waited till engine cooled
> off and added water. No leaks.
> Wife said temp guage read normal. She got a low
> water warning light when she
> pulled into the parking lot.
> 
> I just came back from checking out the car. The
> water that was added has not
> leaked out, so I can eliminate any big leakers.
> Started up the car and let it idle. Temp came up
> normally. After about 10
> minutes or so, temp guage read 1/3.
> No leaks noted . .both hoses were hot.
> After another few minutes, the expansion tank boiled
> over(I had the cap on
> loose). About 2 quarts and lots of steam came out.
> The radiator fan never came on.
> 
> The radiator is new, about 5k miles on it. All the
> hoses  are new.
> Timing belt and water pump replaced 35k miles ago.
> Thermostat replaced about 25k miles ago.
> 
> My hunch is a stuck thermostat.
> I will pick up a new thermostat and gasket and go to
> where the car is stuck
> and attempt replacing the thermostat in the parking
> lot.
> 
> As I recall, unbolting the hydraulic pump and moving
> it aside opens up a lot
> of access room to the hoses and thermostat housing.
> After that, one has
> access to the two thermostat housing bolts.
> 
> Any other opinions as to the nature of the problem?
> 
> 
> SJ
> 85 Dodge PU, D-250, 318, auto
> 85 Audi 4k - - sold but still on the road
> 88 Audi 5kq
> 90 Audi 100q
> 
> 
> _______________________________________________
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> quattro at audifans.com
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