Interior Discussion about interior restoration, repairs, and modifications.

rear hatch motor does not stop running

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Old Jul 4, 2009 | 08:56 PM
  #1  
chrome87iroc's Avatar
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rear hatch motor does not stop running

Hi everybody, my 87 iroc rear hatch motor doesn't want to stop running . i had to disconnect it .. before the motor went. and my trunck wouldn't even close properly . does anyone have a similar problem. and how did you solve this one .. any answers would be appreciated thanks mike
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Old Jul 4, 2009 | 09:08 PM
  #2  
KnottyBuoyz's Avatar
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From: Iroquois, ON
Car: 87 IROC-Z
Engine: 5.7 TPI
Transmission: 700R4
Axle/Gears: Not sure, gotta look it up
Re: rear hatch motor does not stop running

You've likely stripped the plastic gear. I just replaced mine. $6 part new or $1 at the junk yard. Takes 10 mins.

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Old Jul 4, 2009 | 09:11 PM
  #3  
chrome87iroc's Avatar
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Re: rear hatch motor does not stop running

Thank you. Do you know where i can purchase one of those??
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Old Jul 4, 2009 | 09:18 PM
  #4  
KnottyBuoyz's Avatar
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From: Iroquois, ON
Car: 87 IROC-Z
Engine: 5.7 TPI
Transmission: 700R4
Axle/Gears: Not sure, gotta look it up
Re: rear hatch motor does not stop running

Plenty on e-Bay. Sorry was $9 plus shipping. I had one in my hands at the junk yard yesterday but didn't have a torx driver to remove it.
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Old Jul 4, 2009 | 10:52 PM
  #5  
Justin89Formy's Avatar
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From: Moneta, VA
Car: 89 formula 350
Engine: ls1 magnuson tvs2300 supercharger
Transmission: T56
Axle/Gears: 4.11 Dana 44!
Re: rear hatch motor does not stop running

also you can get them from www.top-downsolutions.com
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Old Jul 4, 2009 | 11:21 PM
  #6  
Chevy8588's Avatar
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From: La Grange Park, IL
Car: 1987 Iroc Z28/ 1982 Z28
Engine: 355 TPI IP/ 305 CFI
Transmission: T-56/ 300C
Axle/Gears: 3.42 Open/ 3.73 Posi
Re: rear hatch motor does not stop running

actually you should be able to get that plastic gear from any cadillac with a electric trunk pull down, the plastic parts and motor are the same, i grabbed 4 on my last yard visit lol
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Old Jul 5, 2009 | 01:11 AM
  #7  
FireChicken2.8's Avatar
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From: Eldridge, Iowa
Car: 1989 Red T-Top Firebird, 1989 Iroc
Engine: 2.8L 173 C.I., 355
Transmission: Th700r4 Auto, Built TH700R4
Re: rear hatch motor does not stop running

Originally Posted by Justin89Formy
also you can get them from www.top-downsolutions.com
I agree with Justin, TDS is the way to go. They are awesome to deal with, and have top quality parts! Bought one of these from them 5 years ago and everything is working wonderful to this day!
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Old Jul 5, 2009 | 04:59 AM
  #8  
KnottyBuoyz's Avatar
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From: Iroquois, ON
Car: 87 IROC-Z
Engine: 5.7 TPI
Transmission: 700R4
Axle/Gears: Not sure, gotta look it up
Re: rear hatch motor does not stop running

Originally Posted by Chevy8588
actually you should be able to get that plastic gear from any cadillac with a electric trunk pull down, the plastic parts and motor are the same, i grabbed 4 on my last yard visit lol
That's probably a good idea to have an extra 1 or 4 on hand!

I think what happens is the struts get lazy after time and don't lift the hatch off the mechanism and it won't go all the way up. The motor keeps running trying to push the hatch up and ends up grinding the teeth off the gear.
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Old Jul 5, 2009 | 06:40 AM
  #9  
chrome87iroc's Avatar
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Re: rear hatch motor does not stop running

Originally Posted by KnottyBuoyz
That's probably a good idea to have an extra 1 or 4 on hand!

I think what happens is the struts get lazy after time and don't lift the hatch off the mechanism and it won't go all the way up. The motor keeps running trying to push the hatch up and ends up grinding the teeth off the gear.
thanks alot guys .
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Old Jul 5, 2009 | 02:43 PM
  #10  
Chevy8588's Avatar
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From: La Grange Park, IL
Car: 1987 Iroc Z28/ 1982 Z28
Engine: 355 TPI IP/ 305 CFI
Transmission: T-56/ 300C
Axle/Gears: 3.42 Open/ 3.73 Posi
Re: rear hatch motor does not stop running

i grabbed 4 because i also own a cadillac deville with an electric trunk pull down too lol
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