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While wipers are running headlights flash on and off now wiper start and stop on their own. Question will replacing wiper motor and pulse board fix this? and how does the pulse board work and what is function?

Edited by XXXXXXXXXX on 8/11/2008 at 9:48 AM

Submitted: 466 days and 23 hours ago.

Category: Ford

Value: $25

Status: AWAITING CUSTOMER ACTION

Optional Information:
2003 Mercury Grand Marquis 4.6

Already Tried:
Dealer

Accepted Answer

..HELLO!
You have a good one there. I suspect that there is a bad/shorted circuit in the multifunction switch. This can occur because of age or ?? I would like you to replace it please. Any ??s.
Steve

Accepts:
Expert:	Steve
Pos. Feedback:	100.0 %
Answered:	8/11/2008

Sr. Tech

20 years as a FORD dealership tech

466 days and 22 hours ago.

Reply

Reply to Steve's Post: I've taken the end off the multifunction switch cleaned and regreased the contacts and accually left the switch apart and whe wiper still run had this same problem a year ago they changed out the motor and pulse board but want to make sure

Posted by Steve 466 days and 22 hours ago.

Answer

..HELLO!
Sounds like we are thinking alike here. Replace the switch. I've tried disassembly of these before with zero success. There seems to be PFM inside and not for repair.
Steve

466 days and 1 hours ago.

Reply

Changed out the wiper motor last night after inspecting it and finding the pulse board cover full of water and carbon arcing tracks on the board. 30 minuets to replace, fixed the problem $145 at NAPA not 600 at dealer.

Posted by Steve 465 days and 8 hours ago.

Answer

..HELLO!
Good job! Now get on with life as it used to be.
Steve

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Question

While wipers are running headlights flash on and off now wiper start and stop on their own. Question will replacing wiper motor and pulse board fix this? and how does the pulse board work and what is function?Edited by XXXXXXXXXX on 8/11/2008 at 9:48 AM

Optional Information

Optional Information: 2003 Mercury Grand Marquis 4.6Already Tried: Dealer

Accepted Answer

..HELLO!You have a good one there. I suspect that there is a bad/shorted circuit in the multifunction switch. This can occur because of age or ?? I would like you to replace it please. Any ??s.Steve

Reply

Reply to Steve's Post: I've taken the end off the multifunction switch cleaned and regreased the contacts and accually left the switch apart and whe wiper still run had this same problem a year ago they changed out the motor and pulse board but want to make sure

Answer

..HELLO!Sounds like we are thinking alike here. Replace the switch. I've tried disassembly of these before with zero success. There seems to be PFM inside and not for repair.Steve

Reply

Changed out the wiper motor last night after inspecting it and finding the pulse board cover full of water and carbon arcing tracks on the board. 30 minuets to replace, fixed the problem $145 at NAPA not 600 at dealer.

Answer

..HELLO!Good job! Now get on with life as it used to be.Steve

Related Ford Questions

While wipers are running headlights flash on and off now wiper start and stop on their own. Question will replacing wiper motor and pulse board fix this? and how does the pulse board work and what is function?

Edited by XXXXXXXXXX on 8/11/2008 at 9:48 AM

Optional Information:
2003 Mercury Grand Marquis 4.6

Already Tried:
Dealer

..HELLO!
You have a good one there. I suspect that there is a bad/shorted circuit in the multifunction switch. This can occur because of age or ?? I would like you to replace it please. Any ??s.
Steve

..HELLO!
Sounds like we are thinking alike here. Replace the switch. I've tried disassembly of these before with zero success. There seems to be PFM inside and not for repair.
Steve

..HELLO!
Good job! Now get on with life as it used to be.
Steve