By: Paul Sakalas
In reply to <a href="https://www.onallcylinders.com/2022/06/26/guide-how-basic-cooling-system-troubleshooting-led-to-a-radiator-swap-that-fixed-an-overheating-issue/#comment-268376">stephen r</a>.
Hey Stephen, I know it's been a while, but we followed up on your suggestion to cover Infrared Temp Guns in more detail. You may enjoy this from Jeff Smith:
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<a href="https://www.onallcylinders.com/2022/10/21/the-handheld-infrared-temp-gun-well-show-you-dozens-of-uses-for-the-gearhead-in-around-the-garage/" rel="noopener" target="_blank"><strong>The Handheld Infrared Temp Gun: Dozens of Uses for the Gearhead In & Around the Garage</strong></a>
By: hassan
i was wondering on this issue so long your article helps me alot to fix my problem thank you so much you guys doing great keep it up.
By: Paul Sakalas
In reply to <a href="https://www.onallcylinders.com/2022/06/26/guide-how-basic-cooling-system-troubleshooting-led-to-a-radiator-swap-that-fixed-an-overheating-issue/#comment-286939">Rick</a>.
Hey Rick, thanks for reading. I think I understand your question, but I can't think offhand of a temp gauge sending unit that's just a wire. I assume you're talking about an electrical sending unit? While its true a mechanical gauge's sensing probe is pretty big, you may get lucky running an electrical gauge, as it has a smaller sending unit. And you may even get luckier by swapping out a manifold or water neck with an extra hole already drilled and tapped. (<a href="https://www.summitracing.com/search/part-type/gauge-sending-units/gauge-type/water-temperature" target="_blank" rel="noopener nofollow ugc"><strong>You can see some typical electrical sending units here</strong>.</a>)
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What kind of engine you got? I can do some research and try to find a solution for you? Oh, and I wrote a follow up article a few weeks later that might be of further help:
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<a href="https://www.onallcylinders.com/2022/07/29/whats-the-difference-between-a-mechanical-electrical-temperature-gauge-how-to-test-them/" rel="noopener" target="_blank"><strong>What’s the Difference Between a Mechanical & Electrical Temperature Gauge?</strong></a>
By: Rick
Good article Do they make a temp gauge with a wire so I do not have to drill such a big hole thank s Rick
By: stephen r
Hey back Paul,
Thanks for the quick reply. Yes, I dont think this vehicle warranted the temp gun either. I was just wondering if in the future you could pass on those diag skills.
Really great articles, please keep any and all coming.
By: Paul Sakalas
In reply to <a href="https://www.onallcylinders.com/2022/06/26/guide-how-basic-cooling-system-troubleshooting-led-to-a-radiator-swap-that-fixed-an-overheating-issue/#comment-268359">stephen r</a>.
Hey Stephen--glad you liked the article. <a href="https://www.summitracing.com/search/part-type/digital-infrared-thermometers" target="_blank" rel="noopener nofollow ugc"><strong>Digital infrared thermometers</strong></a> can be really handy for things like pinpointing specific hot spots in the engine, checking temps on header/exhaust/turbo components, or confirming that your temperature gauge is accurate.
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We didn't really need one here for two reasons, 1) we were confident that our mechanical gauge was accurate because it matched the 195 degree thermostat AND the OE electrical gauge that was still functional.
2) Since we put the mechanical gauge's sending unit right at the thermostat, after the coolant's complete travel through the engine, we knew we were taking a reading at the coolant's hottest point.
By: stephen r
Great article. Although..... yep, some of us wont ever be happy I guess. I would have liked to see more diag with infrared temp guns. You know temps readings at certain spots. Whatever? I have seen guys do this and perhaps pretended to know what they were doing. Something I have tried and not really got the hang of.