Question about 2008 Ford Focus
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Posted on Jan 02, 2017
SOURCE: 2008 ford focus
You need 4,6 qts of 5W-20 motor oil. If I were you I'd start right now to use synthetic oil. If you decide to do it - go with "The First in Synthetics" and the best: Amsoil! 5W-20 XL motor oil gives you (guaranteed) protection for 7.500 miles. (Do not fall for warranty cancellations or similar dealership spam. Magnuson-Moss act prohibts cancellations based on brand). Read this: http://people.msoe.edu/~yoderw/oilfilterstudy/oilfilterstudy.html or this: http://www.lesabret.com/filters/filter.html and try to avoid Fram filters. It seems that any other filter is better than Fram. I'd recommend Amsoil, Wix, Carquest (made by Wix), Mobil...
Posted on Nov 14, 2008
Try replacing relay for wiper with another same relay from fuse block from another working accessory.Had same issue on friends Ford Ranger. Moved relays and cleaned harness connection at fuse block. Works fine.
Posted on Mar 14, 2010
It's quite likely the the blower moter relay needs replaced. When this relay burns out you end up with off and high, nothing inbetween. I hope this helps.
Posted on Mar 15, 2010
Testimonial: "hi bud u guys deserve 10 out of 10 better than dealership guys who were saying that blower motor was done"
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Body control module (BCM)
Wiper PCB relay
Wiper high PCB relay
Windshield wiper motor
Windshield washer fluid pump
Windshield washer fluid level switch
WPR fuse 25 A
WSW fuse 10 A
Low Speed Operation
When the wiper switch is in the low speed position, ground is applied through the switch internal resistor and the wiper switch low signal circuit to the body control module (BCM). In response to this signal, the BCM energizes the WIPER PCB relay by applying battery voltage through the wiper relay control circuit to the coil side of the relay. This allows battery positive voltage from the WPR fuse to flow through the switch input side of the WIPER PCB relay and out to the switch input side of the WIPER HIGH PCB relay. Since the wiper high relay is de-energized and its switch contacts are normally closed to the low speed control circuit of the windshield wiper motor, the motor will operate at low speed.
High Speed Operation When the wiper switch is in the high speed position, ground is applied through the windshield wiper switch high signal circuit to the body control module (BCM) indicating the wiper high speed request. In response to this signal, the BCM then energizes the wiper PCB relay, as stated above, and the wiper high PCB relay by applying ground through the control circuit to the coil side of the relay. With the wiper high relay energized and its switch contacts closed to the high speed control circuit of the wiper motor, the motor will operate at high speed.
Wiper motor high speed operation and the wiper high speed PCB relay can also be commanded ON/OFF by using a scan tool. Refer to Control Module References.
DTC B3715 02: Front Wiper Relay Drive Circuit Short to Ground
DTC B3875 00: Wiper High Speed Relay Circuit
DTC B3922 00: Front Wiper Function Select Circuit
You could Have a switch problem , BCM problem ,PCB relay problem , the pcb relays are non serviceable an the whole under hood fuse box would need to be replaced . Malfunctioning motor bad ground some where etc.....
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