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 >>>>> >>>> >>> >> >
