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9000 Trailer Connector Wiring Harness Kits & Auto Trans Parts Alternatives
Posted by David Prantl (more from David Prantl) on Mon, 27 Mar 2000 14:27:51
In Reply to: , Kok Chen, Sat, 17 Dec 1988 12:00:00 

>These wiring harness will fit any year SAAB 9000.

I inspected my '86 9000T VERY carefully, and found no sign of the receiving 
plug on the car's tail-light harness.  Had to splice into tail-light wires 
manually, and chose to run a converter with it's own dedicated power lead 
from the battery.  The convenient add-on trailer light harness being offered 
would NOT work on my '86.

My '88 9000S has a receiving plug for this add-on harness, so it would be 
nice to have if that car were to be used for towing.

'87 models may or may not be compatible.

Good luck.
---
Message from lamanjimno39sdcx6spamx782juno.com
To: david_prantlno39sdcx6spamx782hotmail.com

David,

Thanks for the AT parts source for the Saabs (900 I presume) on TSN. I
did not notice the governor itself listed. Is that a typical replacement
part, or just not listed? I had the AT box in my daughters 88 base 900
rebuilt by a friend, but it shifts erratically. Tom Donney says probably
the governor, which on some is easy and on others very hard to replace.
Any thoughts? I will check out the web site.

Thanks again,

Jim Laman
Holland, MI
----Reply Follows----
Jim,

Classic 900 = BW37TB

9000 = ZF4HP18Q

NG 900 = AW50-40LE

I listed the parts available for the first 2 types of transmission.

Now for your shifting problems.  I hope your friend had access to the 
official SAAB factory manual volume that covers your paticular transmission. 
For 1986-1993 (1994CV) the part number is 30 46 353, and I paid $24 for 
it.  It is incredibly useful, and provides a wealth of diagnostic 
information.

For example, there is a road-test check sheet, which you photocopy and take 
to the car with you.  You follow the instructions on the sheet, and write 
down the required observations.  Then come back to the book, which tells you 
whether each observation indicated proper functioning, or a malfunction.  
Almost all possible scenarios are covered, and step-by-step instructions are 
given to fix the problems that were observed.

The steps to resolution of most shifting problems are:

1.  The transmission fluid and filter screen must be in good condition.

2.  The shifter cable must be properly adjusted (at the gear selector 
lever).

3.  The 'kickdown' cable must be properly adjusted at the throttle body.  
All engine functions must first be in spec, (including idle speed) and the 
engine must be warmed up to normal operating temperature.  An ATF pressure 
gauge must be hooked up to the transmission to make the cable adjustment 
possible.

It these 3 things are covered and a problem persists, it may be a crudded-up 
governor valve.  Depending on the EXACT nature of the problem, it may be 
something else.

The governor is accessible quite easily with the transmission in the car.  
The rear oil pan must be removed, and a large flat-head screwdriver used to 
remove the 2 screws holding the governor to it's mounting.  The governor can 
then be taken apart and cleaned, making sure its valve moves smoothly after 
reassembly.  A new governor goes for $285-list at your nearest SAAB dealer.

The same type of work can be done on the valve body, which resides above the 
front oil pan.

Above the valve body are 2 accumulator pistons.  These can be easily removed 
and cleaned, and their o-rings can be changed.

With a little more difficulty, the transfer-chain cover can be removed and 
the ATF pump can be removed and after that.  A shaft seal, o-ring, and a 
couple of oil pickup o-rings associated with the pump can then be replaced.  
If the chain is stretched beyond spec, it can also be change at this point.

Any other required work begins with the removal of the transmission from the 
vehicle.

Good luck.

David Prantl
david_prantlno39sdcx6spamx782hotmail.com
'84 900S, 5-spd, 210kMi, RIP
'86 9000T, 5-spd, 177kMi
'88 9000S, 5-spd, 137kMi
'90 9000S, auto, 133kMi
'89 900, auto, 115kMi
'68 97 Sonett V4, 76kMi, #000467
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