RE: [DML] Running hot when it's hot out

["Tom Tait" <TTait@xxxxxxxxxx>]

Blocked radiator is what I first thought too.  I've spent time with
friends that run a radiator shop.  They have shown me the gunk they can
clean out of a radiator core that is only a few years old.  It's not fun
to pull out, but I'd consider having your local trusted radiator shop
pull the unit and test/clean it  out.

 

Tom

 

From: dmcnews@xxxxxxxxxxxxxxx [mailto:dmcnews@xxxxxxxxxxxxxxx] On Behalf
Of Martin Gutkowski
Sent: Thursday, June 12, 2008 10:09 AM
To: dmcnews@xxxxxxxxxxxxxxx
Subject: Re: [DML] Running hot when it's hot out

 

The heater core is an auxiliary circuit seperate from the main one. It 
has an isolator valve which switches off the flow with the AC on max 
anyway - this is definitely not the cause of the problem.

If it isn't a failed thermostat, it sounds very much like a blocked 
radiator to me, or a restriction to the radiator air flow as David said.

Do check the stat first thougn, it's so easy to change and I have seen 
new ones that were no good. As the engine warms up from cold the right 
main hose should get hot with the left staying cold. As the stat opens, 
the left ones warms up and very quickly the right one goes cold. From 
that point, they warm up together till the fans come on.

There exists the small possibility of the issue being something 
electrical with the temp gauge seeing as the ambient temperature seems 
to affect the apparent running temperature by more than one migh
texpect.

Martin

 



[Non-text portions of this message have been removed]


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