Help ..Fan has gone Haywire
12-17-2019, (Subject: Help ..Fan has gone Haywire ) 
Post: #2
RE: Help ..Fan has gone Haywire
You need to connect to the ECM while it's happening to see if the engine is engaging the fan. There are fault codes, sensors, switches, damaged wiring & a solenoid that can all cause the fan to engage.

It is common for the AC pressure switch or it's wiring to cause the fan to come in for no reason.
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 Thanks given by: East Coast ISX


Messages In This Thread
RE: Help ..Fan has gone Haywire - Signature620 - 12-17-2019



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