American Auto Wire
Username Post: 66 Impala wiper motor        (Topic#335343)
Badboywrench 
Contributor
Posts: 168
Badboywrench
Loc: Pinole,Ca.
Reg: 10-06-12
04-30-16 11:52 AM - Post#2625254    

Hi Donny,
I am in the final stages of installing the wiring on my Impala.although I am confused about the wiper wiring.I have a two speed with the pump..I have wired it as the instructions,but right above the three wire plug there is an extra wire connection,the instructions don't say anything about it..although it shows it in the picture,but only shows it hooked up to the wiper motor,not the other end..please advise..thanks for your time.
Dave



 
aawtech 
American Autowire "Site Sponsor"
Posts: 5025

Loc: Bellmawr, NJ
Reg: 09-11-06
04-30-16 08:10 PM - Post#2625390    
    In response to Badboywrench

  • Badboywrench Said:
Hi Donny,
I am in the final stages of installing the wiring on my Impala.although I am confused about the wiper wiring.I have a two speed with the pump..I have wired it as the instructions,but right above the three wire plug there is an extra wire connection,the instructions don't say anything about it..although it shows it in the picture,but only shows it hooked up to the wiper motor,not the other end..please advise..thanks for your time.
Dave



It's probably the extra blade for a T400 kickdown power lead.

Donny




 
Badboywrench 
Contributor
Posts: 168
Badboywrench
Loc: Pinole,Ca.
Reg: 10-06-12
05-01-16 09:27 AM - Post#2625468    
    In response to aawtech

I don't think so..as the wipers aren't working..any other ideas?



 
aawtech 
American Autowire "Site Sponsor"
Posts: 5025

Loc: Bellmawr, NJ
Reg: 09-11-06
05-01-16 10:25 PM - Post#2625637    
    In response to Badboywrench

  • Badboywrench Said:
I don't think so..as the wipers aren't working..any other ideas?



Dave, the instructions for that set up are really clear. Take another look at what you have. The white wire is keyed 12v. The wipers are hot all the time when the key is on. Did you check for voltage on that white wire? Basically, you are switching ground. That is what the switch does. Make sure it is properly mounted in the dash. If it's hanging loose, the wipers will not work as they will never see a ground.

Donny




 
Badboywrench 
Contributor
Posts: 168
Badboywrench
Loc: Pinole,Ca.
Reg: 10-06-12
05-02-16 08:19 AM - Post#2625695    
    In response to aawtech

Donny,
I understand it's constantly hot and you use the ground for switching..what I don't know is what I'm supposed to hook up on that extra prong above the 3 prong plug? It had a wire before,and it worked before? That isn't explained in the instructions..



 
aawtech 
American Autowire "Site Sponsor"
Posts: 5025

Loc: Bellmawr, NJ
Reg: 09-11-06
05-04-16 05:23 AM - Post#2626163    
    In response to Badboywrench

  • Badboywrench Said:
Donny,
I understand it's constantly hot and you use the ground for switching..what I don't know is what I'm supposed to hook up on that extra prong above the 3 prong plug? It had a wire before,and it worked before? That isn't explained in the instructions..



Dave,
There is a fantastic photo on page 4 of the engine instructions 510363, as well as the assembly procedure that shows you how the build the wires for your application. As the matter of fact, it even shows the extra blade with a yellow wire on it which, as I said was the power feed for the T400 kick down harness. If you do not have a T400, that blade is not used.

With the key on, using a test light, check voltage on those two white wires at the pump and motor. You should get a light showing voltage is present. If not, the fuse is probably blown. If you have voltage there, make sure you have that copper ground strap under one of the mounting bolt to be sure the motor is grounded solidly. Next, make sure that the switch is mounted firmly in the dash. If it is not, you will not transfer internal ground to the motor and pump, and nothing will work.

Again, nothing is needed on the extra blade unless you are running a T400 trans.

Hope this helps.

Donny



 
Badboywrench 
Contributor
Posts: 168
Badboywrench
Loc: Pinole,Ca.
Reg: 10-06-12
05-04-16 05:06 PM - Post#2626314    
    In response to aawtech

Thanks Donny yes it does help.I have power to the white wires..the only way the wipers work, is if I ground that extra blade? It never had a T400 trani. But it did have a wire to it before I removed the old harness..this is why I thought it needed a wire going to it.and yes the picture does show the wire from the extra blade,but it doesn't show or tell you where the other end goes to...the wipers worked perfect before I removed the harness.



 
aawtech 
American Autowire "Site Sponsor"
Posts: 5025

Loc: Bellmawr, NJ
Reg: 09-11-06
05-04-16 07:12 PM - Post#2626340    
    In response to Badboywrench

  • Badboywrench Said:
Thanks Donny yes it does help.I have power to the white wires..the only way the wipers work, is if I ground that extra blade? It never had a T400 trani. But it did have a wire to it before I removed the old harness..this is why I thought it needed a wire going to it.and yes the picture does show the wire from the extra blade,but it doesn't show or tell you where the other end goes to...the wipers worked perfect before I removed the harness.



It could be that the ground was disturbed when you unwired everything. That was why I went over that whole system for you buddy! did you get it to work? What did you find out? That extra blade is bussed to the one next to it which is the 12v feed wire. If you ground that, the wiper fuse should have blown instantly as soon as the car was turned on.

Donny




Edited by aawtech on 05-04-16 07:14 PM. Reason for edit: No reason given.

 
Badboywrench 
Contributor
Posts: 168
Badboywrench
Loc: Pinole,Ca.
Reg: 10-06-12
05-06-16 11:54 AM - Post#2626708    
    In response to aawtech

Well I got it to work...but only after grounding that blade? Everything else is as the instructions say..can I just leave a ground on this blade?thanks Donny



 
aawtech 
American Autowire "Site Sponsor"
Posts: 5025

Loc: Bellmawr, NJ
Reg: 09-11-06
05-06-16 06:08 PM - Post#2626764    
    In response to Badboywrench

  • Badboywrench Said:
Well I got it to work...but only after grounding that blade? Everything else is as the instructions say..can I just leave a ground on this blade?thanks Donny



LOL. It should blow the fuse instantly. I don't get it.

Donny




 
Badboywrench 
Contributor
Posts: 168
Badboywrench
Loc: Pinole,Ca.
Reg: 10-06-12
05-13-16 03:32 PM - Post#2628085    
    In response to aawtech

Sorry Donny I've been out of the state for a week..I thought it should pop a fuse..but it doesn't ....strange...



 
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