Team Chevelle banner
  • Hey everyone! Enter your ride HERE to be a part May's Ride of the Month Challenge!

1 - 20 of 24 Posts

·
Registered
Joined
·
210 Posts
Discussion Starter · #1 ·
OK here goes another interesting wiring question. When I tested my wipers on the car they worked for a second and stop in the middle of the windshield (keep in mind I did a frame up resto which means I had to pull this mechanism off). Anyhow I for a second thought it was the wiring but it was not.. Anyhow I gone ahead and took a ride over to Ground Up Restoration for a new wiper motor (hidden). So I easily installed the wiper motor onto the car and when I went to test it the motor still did not work.. The wires are on correctly and I did try every possible way to see if it would work, but I did no help... Is their something I am doing wrong? Where is the ground to the wiper motor?? When I hit the wiper motor switch is only makes a clicking noise? Does the washer motor have anything to do with the wiper motor and the wiper movement? All Help is Appreciated?

------------------
ACES Member #2987
1972 Chevelle SS
1987 GTA
1998 Camaro SS (Y2Y)
1978 Pontiac TransAm
 

·
Registered
Joined
·
210 Posts
Discussion Starter · #4 ·
Well last night after I made this post I took the wiper motor out of the casing and it moves freely. However I cannot seem to figure out what the deal is withb something so simple?? Is their a seperate relay tot he wiper motor that I am missing? The switch is giving connection to the wiper motor (I hear the click) also the wiper motor has power which i checked when the key is on or off.. The wiper is brand-new and is doing exactly what the old wiper motor did which is why I replaced it? Strange things happen to me with wiring this Chevelle.......Is their a ground that I did not put on the firewall. Also when I put this motor on with all the switches in the proper place, it started to let out smoke similiar to what the other motor did? Again this is a brand-new wiring harness. Also when I took apart the wiper transmission and put it back together and tried the motor it worked for a second?

------------------
ACES Member #2987
1972 Chevelle SS
1987 GTA
1998 Camaro SS (Y2Y)
1978 Pontiac TransAm
 

·
Registered
Joined
·
210 Posts
Discussion Starter · #5 ·
I think it is the ground but where is the ground located on the firewall section of the car? How can I test the wiper motor when I take it off the firewall, is their a certain procedure that I need to know???

------------------
ACES Member #2987
1972 Chevelle SS
1987 GTA
1998 Camaro SS (Y2Y)
1978 Pontiac TransAm
 

·
Registered
Joined
·
7,762 Posts
Black wire on the switch is ground. Body ground comes from the small wire from battery (-) to the right inside fender. Did you try running it with the wiper transmission disconnected as was suggested?
 

·
Registered
Joined
·
210 Posts
Discussion Starter · #7 ·
I tried running it disconnected sort of but it did not work at all??? I had it laying on metal and it was all connected and when I hit the swtich it did not work?

------------------
ACES Member #2987
1972 Chevelle SS
1987 GTA
1998 Camaro SS (Y2Y)
1978 Pontiac TransAm
 

·
Registered
Joined
·
7,762 Posts
Well, disconnect the connectors from the motor and drag out the meter.

Wiper switch. (grounds the three attached wires as follows)
Light Blue- grounded in Low-speed and Hi-speed positions.
Black- grounded in Low-speed and Off positions.
Dark Blue- grounded when pushed for washer pump operation.

See if you have 12 volts on the yellow (or yellow striped) wire.
Push the wiper switch to high speed. Measure the light blue wire to ground. You should have continuity.
 

·
Registered
Joined
·
210 Posts
Discussion Starter · #9 ·
John ,
I will try the following troubleshooting tips which I appreciate you prroviding me with. We will see what happens and I will keep you posted.



------------------
ACES Member #2987
1972 Chevelle SS
1987 GTA
1998 Camaro SS (Y2Y)
1978 Pontiac TransAm
 

·
Premium Member
Joined
·
1,041 Posts
Can any of you Team Members tell us if the '72 Hidden Wiper Motor is the same as a '69.

The reason we ask is that we pulled the wide lower windshield trim off our '72 Sprint/Elke parts car for our '69. The '72 has the complete motor assembly/wiper unit, however, we need to decide if we should buy a new one, or use the '72 motor assembly.

Any and all info greatly appreciated.



------------------
Team Members Forever #341

Richard, Judy, MAXX2

'69 Elke (Frame Off); GM HO 350/330-Mildly Ported Vortec Heads-Manley Severe Duty SS 2.02/1.60 Valves, Comp Cams Full Roller Package (Magnum)-Custom Grind CS 3315/3316 HR112-.510/.520 Lift, Edelbrock Air-Gap W/750 Performer Manual Choke-Performer 100 HP NOS, March Pulleys, 4L60 (Non Computer) W/Lokar Shifter, 12 Bolt Posi.
 

·
Premium Member
Joined
·
4,136 Posts
sounds like a couple of possibilities.

#1 Is there a flat brass grounding strap associated with your wiper motor and is it in place?

#2 Did you properly index the washer motor to the wiper motor? There is a special procedure for reinstalling washer motor such that the washer motor cam is indexed properly with the washer motor drive mechanism. It involves placing an allen wrench through the body of the washer motor assy and also thru the hole in the washer motor cam. This positions the cam correctly on the drive pawl.

#3 It also sounds like your windshield wiper "park" relay may not be working correctly. I don't recall if that relates to an improperly installed washer motor or not.
 

·
Registered
Joined
·
7,762 Posts
Psst Bill
This is a 2 week old post.

Richard (or Judy)
68-72 hidden wiper motor is the same.
 

·
Premium Member
Joined
·
1,041 Posts
Thanks a bunch!


------------------
Team Members Forever #341

Richard, Judy, MAXX2

'69 Elke (Frame Off); GM HO 350/330-Mildly Ported Vortec Heads-Manley Severe Duty SS 2.02/1.60 Valves, Comp Cams Full Roller Package (Magnum)-Custom Grind CS 3315/3316 HR112-.510/.520 Lift, Edelbrock Air-Gap W/750 Performer Manual Choke-Performer 100 HP NOS, March Pulleys, 4L60 (Non Computer) W/Lokar Shifter, 12 Bolt Posi.
 

·
Registered
Joined
·
210 Posts
Discussion Starter · #14 ·
I would like to Thank everyone with regards to helping me with the following post. Sorry I forgot ot post back but I am getting the car ready for our AACA National Meet. Please check it out at http://www.aaca.org/wraaca/ . The problem was resolved on its own. Once I started the car and pulled it out of the garage it started working and has been fine since. Probably a ground?? I have to look more into this but thanks again....

------------------
ACES Member #2987
1972 Chevelle SS
1987 GTA
1998 Camaro SS (Y2Y)
1978 Pontiac TransAm
 

·
Premium Member
Joined
·
1,041 Posts
Originally posted by John_Muha:
Psst Bill
This is a 2 week old post.

Richard (or Judy)
68-72 hidden wiper motor is the same.

Hi Again;

OK. We have the wiper motor right in front of us and the mounting holes for it are completely different that the wiper motor that was on our '69 (Non hidden).

Do we need to make a template from the '72 Sprint for the mounting hole locations?

Also, are the arms that attach to it different than the Non-Hidden arms, and are the actual wiper blade arms different than the Non-Hidden wiper blade arms?

Any and all info greatly appreciated.




------------------
Team Members Forever #341

Richard, Judy, MAXX2

'69 Elke (Frame Off); GM HO 350/330-Mildly Ported Vortec Heads-Manley Severe Duty SS 2.02/1.60 Valves, Comp Cams Full Roller Package (Magnum)-Custom Grind CS 3315/3316 HR112-.510/.520 Lift, Edelbrock Air-Gap W/750 Performer Manual Choke-Performer 100 HP NOS, March Pulleys, 4L60 (Non Computer) W/Lokar Shifter, 12 Bolt Posi.
 

·
Registered
Joined
·
7,762 Posts
I am not aware that you have to re-drill holes to convert from a non-hidden to a hidden wiper motor. Maybe someone with a 69 manual can answer that. Your original question was are all the hidden motors the same. That's true. Sent one to someone out of a 72 Malibu and it went into a 71 Sprint. Yes the wiper transmissions and the wiper arms need to be changed to do a hidden/non-hidden swap.
 

·
Premium Member
Joined
·
2,223 Posts
For 68 and 69 the non hidden wiper motor mounts directly to the firewall, the hidden wiper motor requires an adaptor bracket (69 GM part #3913663). For 70, 71 and 72 the hidden wiper motor mounts directly to the firewall, the non hidden wiper motor requires an adaptor bracket. You can place an ad in the wanted section for the adaptor if you don't want to drill holes.
 

·
Premium Member
Joined
·
1,581 Posts
I'm having trouble following the adapter part of this but I just replaced the wiper\washer assembly on my 68..I have the
complete 68 wiper assembly (non working) that I can let go of n\c if someone needs it.

Heres a FYI on the wiper situation.
rebuilt by CARDONE

two speed" motors part #40-140
Hidden wiper motor part #40-142

$50.00 and no core on the hidden wiper motor and included new washer pump.

------------------
best regards
Importtech
 

·
Premium Member
Joined
·
1,041 Posts
Originally posted by Importtech:

I'm having trouble following the adapter part of this but I just replaced the wiper\washer assembly on my 68..I have the
complete 68 wiper assembly (non working) that I can let go of n\c if someone needs it.

Heres a FYI on the wiper situation.
rebuilt by CARDONE

two speed" motors part #40-140
Hidden wiper motor part #40-142

$50.00 and no core on the hidden wiper motor and included new washer pump.

HI;

Then you did have the "Hidden Wiper" option originally? We don't understand the adapter either, but we need one if that is what it takes.




------------------
Team Members Forever #341

Richard, Judy, MAXX2

'69 Elke (Frame Off); GM HO 350/330-Mildly Ported Vortec Heads-Manley Severe Duty SS 2.02/1.60 Valves, Comp Cams Full Roller Package (Magnum)-Custom Grind CS 3315/3316 HR112-.510/.520 Lift, Edelbrock Air-Gap W/750 Performer Manual Choke-Performer 100 HP NOS, March Pulleys, 4L60 (Non Computer) W/Lokar Shifter, 12 Bolt Posi.
 
1 - 20 of 24 Posts
Top