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Coyote Series Engines
Cooling System Confusion
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<blockquote data-quote="ForeverDrivin" data-source="post: 16935595" data-attributes="member: 199685"><p>Hello again everybody, I want opinions.</p><p></p><p>I have a 1997 Mustang with a SC coyote swap, but recently tore the motor down a little and put it all back together. Here's my issue.</p><p></p><p>Once it gets up to temp and I'm driving around, the computer monitored coolant temp stays perfect. Right where you want it around 190-200.</p><p></p><p>However, my mechanical coolant sensor starts reading up into the 220-230 range, fluctuates a bit. It is located on the bottom driver side of the block, where the block heater normally is.</p><p></p><p>I immediately thought headgasket like anyone, as I did not have the block decked while the heads were off, only scrapped old gasket off (the heads were cleaned by a shop). But, there are no bubbles in the coolant on startup and it passed a CO2 tester.</p><p></p><p>The gauge is a glowshift setup, I'm imagining the sensor might've just ate it while the car was apart and it was exposed to air, but I can't tell. I've heard mixed things about GS and my gauges worked well until this little issue.</p><p></p><p>Its funny, I bought the mechanical gauge because I didn't trust the head sensor and now I don't trust the mechanical sensor! Lol.</p><p></p><p>Any help is appreciated,</p><p>Blake Hammond</p><p></p><p>Sent from my SM-S906U using the <a href="http://r.tapatalk.com/byo?rid=92568" target="_blank">svtperformance.com mobile app</a></p></blockquote><p></p>
[QUOTE="ForeverDrivin, post: 16935595, member: 199685"] Hello again everybody, I want opinions. I have a 1997 Mustang with a SC coyote swap, but recently tore the motor down a little and put it all back together. Here's my issue. Once it gets up to temp and I'm driving around, the computer monitored coolant temp stays perfect. Right where you want it around 190-200. However, my mechanical coolant sensor starts reading up into the 220-230 range, fluctuates a bit. It is located on the bottom driver side of the block, where the block heater normally is. I immediately thought headgasket like anyone, as I did not have the block decked while the heads were off, only scrapped old gasket off (the heads were cleaned by a shop). But, there are no bubbles in the coolant on startup and it passed a CO2 tester. The gauge is a glowshift setup, I'm imagining the sensor might've just ate it while the car was apart and it was exposed to air, but I can't tell. I've heard mixed things about GS and my gauges worked well until this little issue. Its funny, I bought the mechanical gauge because I didn't trust the head sensor and now I don't trust the mechanical sensor! Lol. Any help is appreciated, Blake Hammond Sent from my SM-S906U using the [URL=http://r.tapatalk.com/byo?rid=92568]svtperformance.com mobile app[/URL] [/QUOTE]
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