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Print in friendly format Send this term to a friend  TH700R4 / 4L60
Automatic Transmission - 4 Speed

1st Gear: 3.06
2nd Gear: 1.62
3rd Gear: 1.00
4th Gear: 0.70

Reverse: 2.29

- Used in production GM model...
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TommyT-Bone ( chucks ?) AC/Primary Fan
Chair-man of the bored
Homestead USA
33837 Posts
Member since:
2007/12/10 0:00



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I have a 94 base coupe with electronic climate control,with the ac off the primary fan and ac compressor still run?Any help with this would be great.
Posted on: 2010/9/6 1:20
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bogus Re: ( chucks ?) AC/Primary Fan
Grand Imperial Pooh-Bah
San Pedro, CA
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The compressor should not run in this condition...

I would wonder if there is a problem in the climate control head or programmer.

I will have to check my helm manual and see what I can regarding troubleshooting this bug.
Posted on: 2010/9/6 1:25
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Education is the best tool to overcome irrational fear. - me

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chuck Re: ( chucks ?) AC/Primary Fan
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Thanks for the reply,I don't have good manual to reference so any help from you guys would be great.
Posted on: 2010/9/6 1:36
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bogus Re: ( chucks ?) AC/Primary Fan
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San Pedro, CA
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I will confirm this today... I got wrapped up in rebuilding my wifes laptop yesterday... never made it out to the garage!!!
Posted on: 2010/9/7 16:53
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Education is the best tool to overcome irrational fear. - me

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CentralCoaster Re: ( chucks ?) AC/Primary Fan
Senior Guru
San Diego, CA
9454 Posts
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Only on defrost or a/c.
Posted on: 2010/9/8 0:59
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1985 Z51, ZF6
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chuck Re: ( chucks ?) AC/Primary Fan
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Ac control is turned off,and compressor and fan still running.
Posted on: 2010/9/8 20:30
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bogus Re: ( chucks ?) AC/Primary Fan
Grand Imperial Pooh-Bah
San Pedro, CA
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I am leaning towards a failed relay.

I don't have the 1994 book, but I suspect the system is pretty much the same from 1992 to 1996.

Depending on auto or manual transmission, there are 1 (a/t) or 2 (man) relays on the left front inner fender.

I would start there.
Posted on: 2010/9/9 0:49
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Education is the best tool to overcome irrational fear. - me

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tjpreul Re: ( chucks ?) AC/Primary Fan
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Columbia, MO
1103 Posts
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2008/9/16 18:12



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Quote:

bogus wrote:
I am leaning towards a failed relay.

I don't have the 1994 book, but I suspect the system is pretty much the same from 1992 to 1996.

Depending on auto or manual transmission, there are 1 (a/t) or 2 (man) relays on the left front inner fender.

I would start there.


This is where I would start too. A shorted a/c circuit will give you a code 68, but no SES light ('92 FSM).
Posted on: 2010/9/9 1:23
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chuck Re: ( chucks ?) AC/Primary Fan
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Just wanted everbody to know this was a bad ac programmer.
Thanks for all the help.
Posted on: 2010/9/25 1:12
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TommyT-Bone Re: ( chucks ?) AC/Primary Fan
Chair-man of the bored
Homestead USA
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Thanks for the follow up. It's always nice to know it's repaired.
Posted on: 2010/9/25 2:08
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