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'87 Porsche 944
 
Join Date: Oct 2007
Location: Keene, NH
Posts: 7
Cruise Control Module removal.....??

Hey

I am trying to fix the cruise control on my 87 944. I have followed the directions on Clarks-Garage to clean the servo in the engine compartment but now I need to remove the electronics module that is above the hood release lever in the driver's side footwell. I have unplugged the 2 harnesses but how do I actually get the module off the holder? I cannot seem to find any bolts or screws holding it up there. How does one go about removing this module?


Thanks everyone
Matt

Old 11-26-2007, 02:50 PM
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What are the symptoms of your problems?
check this thread linked below.
the module is inside of a metal case. there are two or three bolts, one was tricky to get at if i can recall when removing the computer part.

however im not sure if you'll find much wrong with it there. i checked mine it was good, the problem was with the servo under the hood.

Cruise control FIXED! Kudos to you guys!
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1995 993 C2
Old 11-26-2007, 02:58 PM
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'87 Porsche 944
 
Join Date: Oct 2007
Location: Keene, NH
Posts: 7
Thanks Kevin

Yes he basically did exactly what Clarks Garage suggested. I have done that as well with no improvement. Basically my cruise used to work and then it went intermittant and now it does nothing when i switch it on. I have cleaned/lubed/checked the servo in the engine compartment and now I want to resolder all the pads on the board but I cannot get the module off the side of the footwell. I really just want to know what the heck is holding this module in there....haha. I cant seem to see any bolts or fasteners holding it in there.
Old 11-28-2007, 05:33 PM
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ok will the cruise control servo and computer from a 924s fit a late 944?
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1987 Porsche 944
1971 Porsche 911E..(It went home,Germany!)
1969 Porsche 912
1964 Porsche 356c..(roller)
1988 Porsche 924S (PARTS CAR)
Old 03-15-2008, 05:34 PM
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i have a servo and computer from an 86 944, $40 shipped
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83 944....bye bye
85.5 euro spec 944, 5sp (she's gone....
74 914...hasta LA Vista baby
87 924s....don't let the door hit ya
68 912.......see ya!
Old 03-15-2008, 05:57 PM
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I just did this last week. The cruise would accelerate but not hold when set.

There are two 6mm (10mm wrench size) nuts holding the module in. One in front and one in back up above the box.

I did not see anything wrong, but I reflowed all the pads and now the CC works perfectly.
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JWest Engineering
Old 03-16-2008, 08:30 AM
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Quote:
Originally Posted by James Adams View Post
...I reflowed all the pads...
What does that mean?
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1995 993 C2
Old 03-16-2008, 10:43 AM
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yeah, what is "flow pads"...? soldering the traces? or re-flowing the traces?
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1987 Porsche 944
1971 Porsche 911E..(It went home,Germany!)
1969 Porsche 912
1964 Porsche 356c..(roller)
1988 Porsche 924S (PARTS CAR)

Last edited by Lexluther; 03-16-2008 at 11:19 AM..
Old 03-16-2008, 11:15 AM
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im interested in what that means because after fixing mine a few seasons ago, it recently started to have the same symptoms again.
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1995 993 C2
Old 03-16-2008, 11:17 AM
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i am just curious cause my cruise accerates wildly
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1987 Porsche 944
1971 Porsche 911E..(It went home,Germany!)
1969 Porsche 912
1964 Porsche 356c..(roller)
1988 Porsche 924S (PARTS CAR)
Old 03-16-2008, 11:50 AM
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I think that it has to do with the solder points on the board. Out of curiosity I Googled the term and learned that.
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84 944
Old 03-16-2008, 01:33 PM
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Quote:
Originally Posted by EMBPilot View Post
What does that mean?
I turned the circuit board with the parts (resistors/caps/ICs) facing down so I was looking at the traces and pads that the wires from the items on the other side poke through. Then I touched a soldering iron to each wire/pad until the solder remelted to give a fresh connection.
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Old 03-16-2008, 05:34 PM
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Question

Quote:
Originally Posted by James Adams View Post
I turned the circuit board with the parts (resistors/caps/ICs) facing down so I was looking at the traces and pads that the wires from the items on the other side poke through. Then I touched a soldering iron to each wire/pad until the solder remelted to give a fresh connection.
Thats it? that alone fixed your stuck acceleration problem?
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1995 993 C2
Old 03-16-2008, 05:36 PM
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Quote:
Originally Posted by EMBPilot View Post
Thats it? that alone fixed your stuck acceleration problem?
Yep - it all works as-designed now.
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James

JWest Engineering
Old 03-16-2008, 07:34 PM
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same problem

I had the same problem. Cleaned up the servo and still didn't work. Checked out the computer, soldered the only place that looked suspicous. Still no go. Mine was intermittant also, then quit working all together. I replace the servo and computer that were both working on the donor car, but it failed to fix the problem. Could it possibly be in the activation switch on the steering wheel?
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Old 03-16-2008, 07:44 PM
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Let's get some discussion going on that switch located at the wheel. My 84 is having some issues and that's where I was going to look next.

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84 944
Old 03-17-2008, 04:15 AM
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