Fan on full blast at start up

raptorman5174 · 06-19-2022, 08:01 PM

So just recently I developed a coolant leak at the water pump so decided to do a water pump change and after the change the fan would kick on full blast on a cold startup. The cooling system was blead properly before anyway asks and I get this code now 2efe electrical fan, input signal.

The car will act low on power and not create boost when this happens

the weird part is the problem is very intermittent. But just recently I found out that if I run my AC which turns the fan on can runs normally.

this has to be something simple does anyone have any thoughts?

Soden82 · 06-20-2022, 01:46 PM

Is there a relay you can check for the fan? Seems like you either need a new fan or a new connector/relay

raptorman5174 · 06-20-2022, 09:39 PM

yeah I am leaning towards a new fan at this point, I checked the fuse today and it was good.

raptorman5174 · 07-03-2022, 08:33 PM

So coming back to this,

new fan and new relay and I'm back in action, cars a beast again.

After checking the price for a brand new fan they are like $900! :WTF:

I hit up Straight Six Auto ebay page and had a good working fan at my door for $175
plus they guarantee the part.

06-19-2022, 08:01 PM	#1
raptorman5174 Second Lieutenant 48 Rep 259 Posts Drives: 2007 E92 335i 6 speed Join Date: Jul 2008 Location: Central Jersey iTrader: (0)	Fan on full blast at start up So just recently I developed a coolant leak at the water pump so decided to do a water pump change and after the change the fan would kick on full blast on a cold startup. The cooling system was blead properly before anyway asks and I get this code now 2efe electrical fan, input signal. The car will act low on power and not create boost when this happens the weird part is the problem is very intermittent. But just recently I found out that if I run my AC which turns the fan on can runs normally. this has to be something simple does anyone have any thoughts? __________________ 2007 e92 335i 6 speed FBO CPE Catted HiFlo DP's BMS SSK & JB4
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06-20-2022, 01:46 PM	#2
Soden82 Major 482 Rep 1,199 Posts Drives: 2011 BMW M3 Join Date: Jun 2017 Location: Boston iTrader: (1) Garage List 2011 BMW M3 [0.00]	Is there a relay you can check for the fan? Seems like you either need a new fan or a new connector/relay __________________ 2009 BMW 335i 6MT big single (eventually) For now... MHD tuned VRSF Race IC DCI ATM exhaust
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06-20-2022, 09:39 PM	#3
raptorman5174 Second Lieutenant 48 Rep 259 Posts Drives: 2007 E92 335i 6 speed Join Date: Jul 2008 Location: Central Jersey iTrader: (0)	yeah I am leaning towards a new fan at this point, I checked the fuse today and it was good. __________________ 2007 e92 335i 6 speed FBO CPE Catted HiFlo DP's BMS SSK & JB4
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07-03-2022, 08:33 PM	#4
raptorman5174 Second Lieutenant 48 Rep 259 Posts Drives: 2007 E92 335i 6 speed Join Date: Jul 2008 Location: Central Jersey iTrader: (0)	So coming back to this, new fan and new relay and I'm back in action, cars a beast again. After checking the price for a brand new fan they are like $900! :WTF: I hit up Straight Six Auto ebay page and had a good working fan at my door for $175 plus they guarantee the part. __________________ 2007 e92 335i 6 speed FBO CPE Catted HiFlo DP's BMS SSK & JB4
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