A8 coolant circulation issues @#$%^&* !!

[David Kase]

Plus new ones can fail...

DK

Ryan Hoitink wrote:

>Is it possible that you've installed the thermostat backwards, and pressure
>is keeping it from opening?  If the housing is hot, but the lower rad hose
>is cold, the problem almost certainly has to do with the thermostat, or a
>clogged radiator.  Nothing got into the rad hose when you had the engine
>apart, right?
>
>\Ryan
>
>On 4/10/07, Bing <bing30v.audi at gmail.com> wrote:
>  
>
>>I recently replaced the the timing belt,t-stat,water pump,rollers and what
>>not on my 98' A8 4.2Q  and now running hot at stop lights...I have cracked
>>the bleed valves at the heater core to release trapped air, but not much
>>air
>>purged..My t-stat housing is super hot to the touch but my lower radiator
>>hose is ice cold from rad bottom to t-stat housing while upper hoses are
>>hot..T-stat is operational,it opened in pan of boiling water.....What
>>Gives???
>>
>>--
>>Bing
>>'01 A4 2.8QM 30v
>>'98 A8 4.2Q
>>'93 ur//S4
>>82 valves :-)
>>_______________________________________________
>>quattro mailing list
>>quattro at audifans.com
>>http://www.audifans.com/mailman/listinfo/quattro
>>---
>>Watch this space for ads :)
>>
>>    
>>
>_______________________________________________
>quattro mailing list
>quattro at audifans.com
>http://www.audifans.com/mailman/listinfo/quattro
>---
>Watch this space for ads :)
>  
>