1984 Wiper Issue

[rhamer88]

Evening all! Having an interesting issue with my wipers on my 84. I’m searched and searched though old posts and couldn’t find anyone with the exact same conditions as I’m having.

Anyway, the issue is the wipers won’t park 90% of the time. They just stop where they are when I turn them off. Sometimes if I leave then where they are after I turn them off, they’ll stay still for about ten seconds and then return to park. I’ve replaced the motor (twice) and the switch in the steering column.

Any ideas or things to try?

[ray_mcavoy]

Since you have replaced the wiper motor (which includes the parking switch) twice, it seems unlikely that the parking switch itself is at fault. However, the wiring that goes to the parking switch might have a poor / loose connection.

The most likely place for that to occur would be at the plug on the wiper motor. The one for the parking switch is the 2-wire plug up on the gearbox end of the motor with the gray and black w/ light blue stripe wires. Try wiggling that connector to see if it makes a difference. If so, you might have to replace the terminals inside (or try carefully bending them a little with a pick so they make better contact).

[rhamer88]

Originally Posted by ray_mcavoy

Since you have replaced the wiper motor (which includes the parking switch) twice, it seems unlikely that the parking switch itself is at fault. However, the wiring that goes to the parking switch might have a poor / loose connection.

The most likely place for that to occur would be at the plug on the wiper motor. The one for the parking switch is the 2-wire plug up on the gearbox end of the motor with the gray and black w/ light blue stripe wires. Try wiggling that connector to see if it makes a difference. If so, you might have to replace the terminals inside (or try carefully bending them a little with a pick so they make better contact).

Ahh that’s great advice! That points me in a new direction I hadn’t considered. Thank you for that!

[TKCR]

Originally Posted by rhamer88

Evening all! Having an interesting issue with my wipers on my 84. I’m searched and searched though old posts and couldn’t find anyone with the exact same conditions as I’m having.

Anyway, the issue is the wipers won’t park 90% of the time. They just stop where they are when I turn them off. Sometimes if I leave then where they are after I turn them off, they’ll stay still for about ten seconds and then return to park. I’ve replaced the motor (twice) and the switch in the steering column.

Any ideas or things to try?

I have had this problem also. The research that I have done lead me to the wiper module. I had replaced the switch on the steering column but that did nothing, still had the same issue. But once I replaced the module I haven’t had any issues.

[rhamer88]

Originally Posted by TKCR

I have had this problem also. The research that I have done lead me to the wiper module. I had replaced the switch on the steering column but that did nothing, still had the same issue. But once I replaced the module I haven’t had any issues.

Another great piece of advice! Thanks for the picture with the part number. I’ll look into that as well. Where exactly is that located in the truck?

[Pontiac1976]

I assume that TKCR and rhamer88 are working with pulse wipers option I did see that if you both had that option or not. I do not have that option have not seen that part on the steering column. Very Kool info. .

[TKCR]

Originally Posted by rhamer88

Another great piece of advice! Thanks for the picture with the part number. I’ll look into that as well. Where exactly is that located in the truck?

Originally Posted by Pontiac1976

I assume that TKCR and rhamer88 are working with pulse wipers option I did see that if you both had that option or not. I do not have that option have not seen that part on the steering column. Very Kool info. .

Sorry rhamer88, I just realized you said you have an 84. These parts are for the 85 and up.

[rhamer88]

Originally Posted by TKCR

Sorry rhamer88, I just realized you said you have an 84. These parts are for the 85 and up.

Yea I was looking around last night and figured out that picture you posted was for pulse wipers. I wish I had pulse wipers, quite the convenient upgrade! Thank you for sharing though…that’s what this hobby is all about.