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You don't have a short in the fuse box ! Before you cause more problems ,take your vehicle to a qualified repair shop . The fuse just supplys battery voltage for the wiper's . I guarantee it's not the fuse box . The fuse for the front wipers is located in the rear fuse box . FRT WPR fuse # 33 25 amp. The rear fuse box is located under the left rear seat. I would bet the pluse board on the front of the wiper motor is bad , not the fuse box . I have thirty years of GM dealer ship experience as a technician . Just because pulling the fuse turns them off doesn't mean there is a short in the fuse box , it's just cutting battery voltage to the wiper motor . Wiper motor pulse board is bad , these go out all the time an cause the problem your having . https://www.partsgeek.com/catalog/2004/gmc/envoy_xuv/body_electrical/wiper_motor_pulse_board_kit.html?brand=ac_delco
The procedure is a bit complicated - the wiper assembly is below the air intake grill at the bottom of the windshield. You need to remove the wipers, the grill cover, the windshield lower retaining frame, the motor retaining bolts, and so on. Best bet is to get a workshop manual for the car for details.
Should have power at the dark green wire if the key is on(at the motor),always
There is a board in the wiper motor assembly also ,so yes it could be in the motor,but I believe that is a ground activated system,power is always on,the ground controls the on,off,pluse ect
remove wiper arms, remove cowl, un plug wiper harness, remove nut from wiper linkage, remove wiper motor. to install reverse procedure. special tool needed is a battery post/wiper arm removal tool. 10.00 bucks at your local car parts shop. help this was helpfull
It is a straight forward procedure and the motor is easily accessed under the hood. No special tools required. Before you start, why do you want to change the wiper motor, those are about one of the most reliable parts on any vehicle. First check other things like the fuse, the wiring and connectors and the switch. There is no relay in the wiper circuit. Try taking a single 12 volt supply straight to the motor terminals (the body is earthed) and see if the motor works before you change it.
The wiper cam actuator the cam is made to prevent damage to the
motor by using a spring to allow it to slip if the wipers are stuck or frozen
to the wind shield the spring stretching causes the wipers to stop in the
middle of the window not hard to replace but does require you to do a timing
procedure it should come in the box if not ill give you the basics get the new
part remove both wiper arms careful the windshield is under the black plastic
and I've seen other break the windshield taking the wiper arms off a battery
post puller is the best way to remove , remove the cowl plastic piece you will
see the cam gold/silver in color remove the one torx head screw then install
new one rotate clockwise 2 times should spin freely then spin counter clockwise
should stop look at where it is touching this area should have a 4mm gap the
wiper motor has to be in the intermittent position prior to this turn key on
put wipers in intermittent let motor spin then when it stops shut the key off
then install cam. -------- Removal Procedure:Tools
Required:J 39232 Wiper Linkage Separator Remove the wiper
arms. Refer to Windshield Wiper Arm Replacement .
Remove the air inlet grille panel. Refer to Air Inlet Grille Panel Replacement
.
Remove the water shield.Remove the screw and the nut. Dissconnect the RH linkage assembly from the LH linkage assembly
with the J 39232 .
Remove the LH linkage assembly.Remove the screw from the wiper motor. Pull the wiper motor free from the slots of the bracket.Disconnect
the RH linkage assembly from the wiper motor with the J 39232 .Disconnect the
electrical connector from the wiper motor.
Installation Procedure:Tools Required:J 39529 Wiper Linkage Installer Connect the electrical connector to the wiper motor.Connect the RH
linkage assembly to the wiper motor with the J 39529 . Important: When installing the wiper motor, be sure that the crank
arm is in the innerwipe position. The crank arm drive pin must be engaged in
the cam pocket. Install the wiper
motor with two locator pads pressed into the slots of the bracket. Notice: Use the
correct fastener in the correct location. Replacement fasteners must be the
correct part number for that application. Fasteners requiring replacement or
fasteners requiring the use of thread locking compound or sealant are
identified in the service procedure. Do not use paints, lubricants, or
corrosion inhibitors on fasteners or fastener joint surfaces unless specified.
These coatings affect fastener torque and joint clamping force and may damage
the fastener. Use the correct tightening sequence and specifications when
installing fasteners in order to avoid damage to parts and systems. for getting more
help on this issue please click on the link directly http://www.adriatic-company.it/matizclub/tecnica/manualeII/M39d%20Wipers%20-%20Washer%20Systems.pdf This will help. Thanks please keep updated.please do rate the
solution positively .thank you for using fixya
Is located on the firewall closest to the drivers side there may be a black cover panel remove that to obtain access... Disconnect the wiring harness to the motor it self you will also need to pull the connecting arm off the unit that operates the wiper blades , there should be 4 nuts or bolts that hold it in place remove those and replace new unit installation is reverse procedure.
They are under the wiper assembly under the hood. Remove partial firewall, wiper assembly and "cage" for the motor. The regulator is under the motor. I would check the strip fuse first its but the drivers sidestrut mount in a tootsie roll sized plastic snap container.
Hope this helps you ??? I don't think you need any specal tools ???
outline would be appreciated
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