wssix99

iTrader: (5)

When I go to AZ, they show me the old design for the ACI model:

slowbrakiller

iTrader: (10)

Ya it was the wrong one, I cant believe noone on here knows who makes that motor!

wssix99

iTrader: (5)

Well, we did until Dorman recently (evidently) dropped it.

The new motors, when they were carried as Duralasts and then later, as Dormans, didn't have any distinguishing markings as to who the manufacturer was.

They must still be out there. It's just a matter of finding what the brand du jour is for these things.

wssix99

iTrader: (5)

Also very disappointing that Dorman is using the same p/n for both the new and legacy design.

Maybe you could try a smaller outfit and find some new old stock of the former Dorman offering: http://www.diypowerwindowrepair.com/...-Position.html

wssix99

iTrader: (5)

Do you have a good contact at your local AZ who can call a corporate buyer and find out what happened. They first had the design as a Duralast and then switched over to the Dorman name. They must have someone at AZ corporate who knows who the private label manufacturer is for the motor.

EnergyCC

Why is the new design so much better ? Does it spread the load better by having a bigger "area" around the gear ?

wssix99

iTrader: (5)

The promo material that shipped with the motor when it was under the Duralast brand cited 100% new content of the part and that it was better sealed against dust and contaminants vs. the original design.

SparkyJJO

iTrader: (11)

Then why did the Autotrix kit work so well on my old car if the fault isn't in the wiring (at least partially)? My passenger window went from barely making it to the top to flying to the top faster than the nearly brand new motor on the driver side.

I don't disagree these old motor designs are likely pretty sad and shouldn't have been used.

Orange Juice

iTrader: (3)

Wasn't there a thread about pulling the top of the motor apart and bridging the wiring? I remember someone posting that a few years back.

wssix99

iTrader: (5)

Well, there is "bad" wiring, but its all in the motor. The motors can fail by a number of mechanisms. The bypass doesn't solve them all but will make some of the bad motors look better. The bypass (Autotrix) will give you a 1% increase in voltage to the motor. In many cases, that could be enough to get the motor "over the hump" to its regular performance. The thermal cutoff (common problem) is an analog/heat sensitive device, so if the part is on the borderline, I'd expect that 1% can be enough to take it back over.

The bottom line is that the cars were fine from the factory. The interior wiring doesn't suffer with age, but the motors do.


That's the bypass of the thermal cut-off. That device keeps the motor from over-stressing the door panel, so its a really important thing and protects from big repair$$$.

SnIpEz

iTrader: (4)

Guessing no one ever found anything in regards to the new motors?

EnergyCC

Apparently not...

KLaBZ28

iTrader: (4)

Yeah I've gone through two new motors from the Chevy dealer in the past 2 years. I haven't installed a new one because I want to find a final good fix. Maybe regulator? maybe need a better motor?

wssix99

iTrader: (5)

This new motor, which we can no longer locate... was the solution.

The regulator is fine and pretty basic/durable.

A company called ElectricLife makes an aftermarket custom regulator/motor combo. I tired that a few years back and it was a COLOSSAL failure - worse than stock. The motors were wimpy, burned all the way out, and could not be replaced. The regulator also bolted in, and we all know how regulator bolts work out on these doors... (Fortunately, I dropped some coin on Nord-Lock washers for those bolts, which kept everything tight and saved my door panel.)

KLaBZ28

iTrader: (4)

dang that sucks. yeah I think my regulator is fine, ive been driving around with the motor removed and just manually slide the window up and down with my hand ghetto style..

proper.

SnIpEz

iTrader: (4)

Man that really does suck then. I was really hoping to snag one of those new windows for my PS window in the Camaro.

KLaBZ28

iTrader: (4)

I took my burnt out one apart over the weekend, my motor was about a year old and looks brand new inside. The problem with these is the brushes wear out fast, so I rotated the brushes and expanded the springs so they contact better. We will see how long it lasts like that before they wear out and lose contact again.. I'll update when it re-burns out haha. Next try will be to upgrade the brushes.

wssix99

iTrader: (5)

Does it work now?

Another common problem is the the thermal resistor. (A lot of remans seem to come with the original, which also leads to heartache.)

KLaBZ28

iTrader: (4)

Yes it works with the brushes contacting now, just havent installed it yet. Waiting to have some time aside so i can pull my door lock cylinders out at the same time and respray them silver.. The worn out black is bothering me.