yes.  Detergent flush, then citric, finally full tap water flush.  Buttoned 
back up with new hoses and water pump.

clay

On Jul 11, 2014, at 5:03 PM, Jim Cathey wrote:

> I forget, have you given it a citric acid flush?
> 
> -- Jim
> 
> 
> 
> On Fri, Jul 11, 2014 at 12:38 PM, clay <redgh...@comcast.net> wrote:
> 
>> Froggy is having inconsistent cooling issues.
>> 
>> I was taking her for an italian tune up this past weekend.  I meant to
>> climb the foothills of the Cascades about 32 miles out of town (seattle)
>> doing 70mph.   I made it only 22 miles before I had to pull off because the
>> temp was climbing up to the red zone.  Got to a service station and
>> drizzled a gallon of water over the block and rad to get temp down.  I
>> decided to head back home and give it a better look.
>> 
>> No visible leakage.  The system was holding pressure fine.  I checked the
>> oil for water, but only found it to be black and nasty.  This within 500
>> miles of a change.  I am suspecting the shop did not really change the oil.
>> So, I gave it all new oil.
>> 
>> Thermostat was changed, along with new hoses and water pump last summer.
>> The AC does not function, so that should have no impact on temps.  I have
>> replaced the hood pad, and there are no cats living in the engine bay to
>> add to the heat soaking.
>> 
>> Transmission filter and fluids were change two years ago, about 2k miles.
>> 
>> Anybody have insight?
>> 
>> 
>> clay
>> 
>> 2002 s430 - Victor, a Stately & well tailored chap
>> 1974 450sl -  Frosch - Two tone green
>> 1972 220D - Gump - She was green, simple and ran
>> 1995 E300D - Gave her life to save me against a Dame in a SUV
>> POS 1987 SDL - Beware Nigerian Scammers
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
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> _______________________________________
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