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" <[email protected]> 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) <[email protected]> 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" <[email protected]> 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
