Blower Motor Resistor
-
RickHaleParker
- Posts: 7208
- Joined: 25 May 2015, 14:30
- Year and Model: See Signature below.
- Location: Kansas
- Has thanked: 8 times
- Been thanked: 980 times
In addition the the fan control module, there are two relays and the motor that can cause it to intermittent.
I would start with the motor.
Pull the loom off the motor and hook both the Positive and Negative up direct.
Tap on the motor to see if it will intermittent.
The modulating fan speed, intermittence and erratic are what makes me suspicious of the fan motor.
Those three are symptoms of worn brushes.
I would start with the motor.
Pull the loom off the motor and hook both the Positive and Negative up direct.
Tap on the motor to see if it will intermittent.
The modulating fan speed, intermittence and erratic are what makes me suspicious of the fan motor.
Those three are symptoms of worn brushes.
Active
1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
2017 Ford PIU. 3.5l, Twin Turbo, 365 Hp.
............................
Past
2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. ( Killed by a plastic radiator. )
2004 S60R, B8444S TF80 AWD. Yamaha V8 conversion ( I moved, the project did not )
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0. ( Transmission dead after sitting for a winter )
1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
2017 Ford PIU. 3.5l, Twin Turbo, 365 Hp.
............................
Past
2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. ( Killed by a plastic radiator. )
2004 S60R, B8444S TF80 AWD. Yamaha V8 conversion ( I moved, the project did not )
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0. ( Transmission dead after sitting for a winter )
-
alschnertz
- Posts: 701
- Joined: 29 Apr 2011, 09:25
- Year and Model: 1995 854T
- Location: Connecticut
- Has thanked: 2 times
- Been thanked: 12 times
Thanks.Richouser wrote: 11 Apr 2019, 14:53 Was working intermittently and erratically, then stopped working completely.
Mine has been erratic for the past 5 years (at least!).
I changed the resistor 2-3 years ago and it didn't make any difference.
I generally don't use the fan anyway. Rarely use A/C or need any boost (blower fan) in my daily commute.
Still, it would be nice to have it working properly so I'm going to follow up again with this new information.
'60 PV544, '68 220, '70 145S, '86 745T, '95 854T, '01 S40
'84 Prelude
'06 MPV
'13 Ford Focus SE
'84 Prelude
'06 MPV
'13 Ford Focus SE
-
- Similar Topics
- Replies
- Views
- Last post