Interesting - temp goes up after engine off with fans running
09-28-2023, 09:18 AM
#1
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Interesting - temp goes up after engine off with fans running
I kill the engine, the fans are still running (flex-a-lite running for 30 seconds after shutdown), but then the temp on the cluster jumps to 260. When the fans shut off, the temp goes back down. So how does that happen?
09-28-2023, 09:48 AM
#2
Supreme Member
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Re: Interesting - temp goes up after engine off with fans running
Um... yea... i know how that works. But why the temp sensor jumps to 260 only when the fans are running doesn't make sense to me.
09-28-2023, 02:16 PM
#3
Supreme Member
Thread Starter
Re: Interesting - temp goes up after engine off with fans running
They only run when I want them to using the flex controller. But I don't think you understand what I'm saying. Why would the movement of hot air from the fans around the engine bay cause the temp the sensor is detecting go up... The water pump isn't turning, the engine is off... everything is off, and the temp gauge is at 220. Then I turn on the fans manually, and it jumps to 260. But whatever.
09-28-2023, 02:23 PM
#4
Re: Interesting - temp goes up after engine off with fans running
They only run when I want them to using the flex controller. But I don't think you understand what I'm saying. Why would the movement of hot air from the fans around the engine bay cause the temp the sensor is detecting go up... The water pump isn't turning, the engine is off... everything is off, and the temp gauge is at 220. Then I turn on the fans manually, and it jumps to 260. But whatever.
I would guess that the gauge has some kind of issue, similar to how the tachs in these cars can point to a random point after shutoff. Something in the current draw of the fan might be feeding into the gauge wiring and making it peg.
I'd check your grounds, maybe check the wiring behind the dash and make sure there isn't something with the insulation rubbed off or something.
09-28-2023, 03:44 PM
#5
Re: Interesting - temp goes up after engine off with fans running
I'm tracking with you.
I would guess that the gauge has some kind of issue, similar to how the tachs in these cars can point to a random point after shutoff. Something in the current draw of the fan might be feeding into the gauge wiring and making it peg.
I'd check your grounds, maybe check the wiring behind the dash and make sure there isn't something with the insulation rubbed off or something.
I would guess that the gauge has some kind of issue, similar to how the tachs in these cars can point to a random point after shutoff. Something in the current draw of the fan might be feeding into the gauge wiring and making it peg.
I'd check your grounds, maybe check the wiring behind the dash and make sure there isn't something with the insulation rubbed off or something.
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