[V8] 4.2 still running hot...

[Coleman, David]

A bit late to this party, but could you recap what you've diagnosed so
far?  I.e. have you been through the book re: testing the two cooling
sensors?   If there's an air pocket in the radiator the sensor down in
front may be getting a false reading.  A sticky thermostat is also a
standard check.   Have you been under the hood while it's reading too
hot, and seen burbling and gurgling overflow tank?  Is the top hose
(dirty minds please look away) hot and firm?

I recall someone suggesting the local firehouse might be able to
pressure test the radiator?  Would love a play-by-play on that, but I
might try to eliminate the radiator as a cause as well..

DaveC.



> -----Original Message-----
> From: v8-bounces at audifans.com 
> [mailto:v8-bounces at audifans.com] On Behalf Of Carter Johnson
> Sent: Monday, August 22, 2005 2:16 PM
> To: v8 at audifans.com
> Subject: [V8] 4.2 still running hot...
> 
> Granted it was 94 degrees here yesterday with uber-hohe 
> humidity, but even with the new fan (THANKS
> RON!!!!) working properly, it would seem, I was forced to 
> turn on the heat in a prolonged traffic stop (5
> minutes) as the temperature crept up towards indicated 120 degrees.  
> 
> Ideas?  Could this be Ray's suggestion of a misreading?  The 
> car had no cooling problems at all prior to about 1 month ago 
> when the fan stopped working.  Even at redlights and such 
> with the fan on, car instantly is up around 110 degrees.  
> This is all with no AC.
> 
> I've noticed that the fan does not after-run, even when the 
> car is very hot.  Also, is the fan supposed to run through 
> different speeds?  Maybe I just don't hear it, but I only 
> seem to have one - but remember reading something about three 
> different speeds on the electric fan?
> 
> Perplexed, and running very warm.
> Carter
> 
> W. Carter Johnson
> University of Rhode Island
> 401-874-4947 office
> 401-789-3217 home
> 
> 
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