Re: [Chrysler300] 375 Troubled Horses

[paul <paulholm@xxxxxxxxxxxxx>]

On 8/17/2011 9:54 AM, Keith Boonstra wrote:

> Well, here's the morning-after report.  I had the cap tested this
> morning and it is dead on 14 #, so we're OK there.  There is about
> 2-3/4" of tank between the core and the filler neck.  The engine is cold
> now, of course, and I'm showing 3/4" of coolant and 2" of air in the top
> tank.  This overflow situation has only occurred once so far, so if I'm
> lucky (a pretty rare thing for me these days) the system is now down to
> the amount of coolant it wants.  I'll do a little watchful waiting.
>
> One thing I didn't think of doing at the time was to see if the fan
> clutch was stiff when the radiator was overflowing.  I presume I should
> be able to feel that it is with the engine shut down while hot.  I will
> make it a point to check that the next time I have it heated up.
>
> Thanks to all.
> Keith Boonstra

Ok it sounds like your cooling system now might be at equilibrium,

May I suggest that since you probably used a new anti-froze product to 
about a 50-50 mix, that you think about NOT letting that sit in your 
system the suggested 3-5 years.

Once you have that air pocket established the modern formula not does 
react to the presence of the air very well. It probably will develop 
particulate fall out and can, given enough time, settle out and start 
building up 'crude'.  Been there Done That in the 'hot-rod' truck parts 
chaser I have.

Remedy, Annual flush and replace schedule.

I adopted an abbreviated schedule for all our vehicles, even the modern 
closed system car. We really noticed this when we bought the used 98 
Sebring convertible 8 or so years ago. And when we bought the wifypoo's 
used 05 PT GT R/T that was something I checked out after we got it home.
It too got a flush and clean then replaced the coolant and it was only 3 
years old then.

-- 
Paul Holmgren
Mine: 2 57 300-C's in Indy
Hers: 05 PT GT R/T HO Stage 1
Hoosier Corps L#6


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