Hi Tom,
You said it's your heater that isn't heating the cab....correct?
Your engine cooling system might be fine. You could have a stuck Heater
Control Valve or the Fresh Air Damper could be stuck open. Just something
else to think about.....
Mike Boteler
'56 4400 Stake
'56 6400 Stake
'56 8400 Wrecker w/Holmes 525
'56 9200 Tractor w/Allison Automatic
'57 10500 Fire Truck
Hughesville, MD
----- Original Message -----
From: "Tom C." <c_tom@bellsouth.net>
To: "Bob KNOTTS" <raknotts@qwest.net>; "Bruce Kettunen" <bekett@uslink.net>;
<oletrucks@autox.team.net>
Sent: Tuesday, December 02, 2003 8:58 PM
Subject: RE: [oletrucks] newer chevy truck question
> Thanks to all that replied. I think my plan of attack will be to top of
the
> coolant system, and check my radiator cap, and see if that works. If it
> doesn't work, I will change the thermostat and just add water to see if it
> gets hot. I will also look to see if the water is circulating in the
> radiator. If that doesn't work I will flush the system and fill back with
> DexCool and water. If that don't work, well it will work, something will
> work. Maybe the water pump will be the next thing.
> Thanks again,
> Tom
> 55 2nd
> 97 S-10
>
> -----Original Message-----
> From: owner-oletrucks@autox.team.net
> [mailto:owner-oletrucks@autox.team.net]On Behalf Of Bob KNOTTS
> Sent: Tuesday, December 02, 2003 8:26 PM
> To: Bruce Kettunen; oletrucks@autox.team.net
> Subject: Re: [oletrucks] newer chevy truck question
>
>
> I'm retired from an AZ State agency. Our motor pool told me you should
> ALWAYS use distilled water. It's cheap, and doesn't leave the minerals
that
> you get in the water almost anywhere. On the thermostat-you can open the
cap
> WHILE THE ENGINE IS COLD, and use a flashlight to watch the coolant after
> you start the engine. The water shouldn't move across the radiator until
the
> engine gets warm. If it starts moving across rapidly at once, you almost
> certainly have a failed open thermostat. Bob K in PHX.
>
> ----- Original Message -----
> From: "Bruce Kettunen" <bekett@uslink.net>
> To: <oletrucks@autox.team.net>
> Sent: Tuesday, December 02, 2003 10:46 AM
> Subject: Re: [oletrucks] newer chevy truck question
>
>
> > As the weather gets colder, the operating temperature of the engine
> > will go down if the thermostat is stuck open. If the temp guage
> > doesn't reach its normal position, it is probably just a bad thermostat.
> > If the truck truly overheated, the thermostat has a low melting
> > point metal plug that probably melted and leaves the thermostat wide
> > open.
> >
> > If the guage shows normal temperature or hot and you don't have cab
> > heat, there is usually a valve somewhere between the engine and the
> > heater that may not be working.
> >
> > You don't even want to think about the other possibility.
> >
> > Dex Cool is ethylene glycol antifreeze just like the stuff we have
> > been using for years. The difference is the corrosion inhibitor
> > package that is added. Green coolant uses a silicate based chemistry
> > and Dex uses an organic based chemistry for this.
> >
> > On another list I am on, Dex Cool is called Death Cool. Seems that
> > after 4 years or so it turns sour and if air is in the system it
> > can quite suddenly jell up into unpumpable slime. I know Chevy says
> > it is good for 5 years or 100,000 miles, but it is probably time
> > to flush yours. You can replace it with Dex or with green coolant.
> > The Dex Cool does tend to make water pump seals last longer. Once
> > you have used green coolant there is reportedly no advantage to using
> > Dex again.
> >
> > The consensus on that list is that it should be changed every 2-3
> > years just like green coolant. Also, the consensus on that list
> > is that if you live in a bad water area, you should use distilled
> > water to dilute it.
> >
> > Bruce Kettunen
> > 57 3200
> > Mt. Iron, MN
> >
> >
> > At Tuesday, 2 December 2003, you wrote:
> >
> > >I hope a newer Chevy truck question is ok. It takes my 1997 S-10
> > truck over
> > >20 miles to get warm and then it is only luke warm so to speak.
> > Where you
> > >you guys start to look for this problem? I would think maybe the
> > thermostat,
> > >if that doesn't do it, then the water pump? I havn't checked the water
> > >level, but could low water in the radiator cause it to not warm up? I
> > >wouldn't think so since it is pumped through?
> > >It got hot last year and real quick, so something has gone away.
> > >Also, I know that the Dex-cool is what I need to use, but do I add
> > it like I
> > >would regular antifreeze? I have never used any Dex-cool.
> > >Thanks for the input, and have a great day.
> > >` Tom
> > > 55 2nd
> > > 97 S-10----The truck in question
> > >oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
> > >
> >
> >
> >
> >
> > ===================================================================
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> > oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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