Yup. On the Cavalier it wasn't the radiator cap but the coolant
reservoir cap that regulated pressure.
I think it kept the coolant at 15 psi. Higher pressure means higher
boiling point, which means the fluid can transport more heat.
------ Original Message ------
From: "Forrest Christian (List Account)" <li...@packetflux.com>
To: "af" <af@afmug.com>
Sent: 9/18/2017 12:25:38 PM
Subject: Re: [AFMUG] OT: S10 Chevy heating issue
One additional thought.. I've had at least one rig where a
bad/incorrect radiator cap would cause overheating as the radiator cap
in many systems doubles as the pressure regulator for the system, and
apparently system pressure matters for some engines.
Not sure if this applies in your case.
On Sep 18, 2017 9:19 AM, <ch...@wbmfg.com> wrote:
If you don’t have exhaust gasses in the radiator, it is probably not a
head gasket. If you do, then follow up with a compression test.
If both tests fail, it is probably a gasket. Sounds to me more like a
recalcitrant thermostat.
From:Cameron Crum
Sent: Monday, September 18, 2017 9:13 AM
To:af@afmug.com
Subject: Re: [AFMUG] OT: S10 Chevy heating issue
Be easier to replace a head gasket than pull the whole motor IMO
On Mon, Sep 18, 2017 at 9:57 AM, <ch...@wbmfg.com> wrote:
That exhaust gasses in the radiator test Forrest mentioned is a sure
indicator. Better than a compression test.
From:Jaime Solorza
Sent: Monday, September 18, 2017 8:56 AM
To:Animal Farm
Subject: Re: [AFMUG] OT: S10 Chevy heating issue
Yep... going have compression test done...we have another 4.3 in a
wrecked Blazer we could swap with 111005 miles on it. Might just do
that and donate Blazer to Car Talk
On Sep 18, 2017 8:51 AM, "Cameron Crum" <cc...@wispmon.com> wrote:
I wouldn't run without a t-stat. On a lot of cars you need the
restriction to give the radiator time to do its job. Sounds to me
like if it was smoking (from exhaust?) when heating, you might have
a cracked head gasket. It looks like you've replaced everything
else.
On Mon, Sep 18, 2017 at 9:04 AM, Forrest Christian (List Account)
<li...@packetflux.com> wrote:
One thing to check is if you're getting exhaust gases in the
radiator. There are kits to test this.
On Sep 17, 2017 6:06 PM, "Jaime Solorza"
<losguyswirel...@gmail.com> wrote:
My wife bought a 2001 4x4 Chevy S10 Vortec 4.3 from sons wife. We
knew it heated up a little...I replaced water pump, fan clutch,
thermostat, had system flushed including heater core along with
radiator. It doesn't heat up us as much...you can run it on
freeway with temp at 210 degrees...once you exit and stop, it gets
hot for a bit then cools off again. No detectable leaks, no water
in oil...wonder if sensor if faulty...any ideas or tips...we want
4x4 for winter hiking season. Thanks
