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Recovering dismantler
 
neil30076's Avatar
 
Join Date: May 2007
Location: Cary, NC- ex San Diego
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Blower motor resistor pack - where is it!

On my 84 S, exactly where is it ? The blower motor only runs on defrost, console is out and the switch checks out OK, so i'm looking for the resistors!
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Neil --- 928 OC Regional Rep - Cary, North Carolina
81 928, 84 928S Euro , 86 928 widebody.
1929 Model A Street Rod - build in process.
Land Rover Discovery, Winnebago Brave + Jeep Wrangler, Proline 21WA boat.

Last edited by neil30076; 01-15-2010 at 02:50 PM..
Old 01-15-2010, 01:23 PM
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Recovering dismantler
 
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Bump - Merlin, someone please tell me where this darn part is!
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Neil --- 928 OC Regional Rep - Cary, North Carolina
81 928, 84 928S Euro , 86 928 widebody.
1929 Model A Street Rod - build in process.
Land Rover Discovery, Winnebago Brave + Jeep Wrangler, Proline 21WA boat.
Old 01-15-2010, 03:14 PM
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Look under your hood. Now, near the windshield, you will find a thin black plastic "tray" that covers the wiper motor. There is a rubber seal that holds in down at the engine side, and some clips at the windshield side. Remove the rubber seal, and carefully pull the tray from its clips and remove from the car. Now, looking at the wiper motor, look just to the left- there is a square aluminum thing; this is for the air conditioner. JUST TO THE LEFT OF THIS is the resistor block. It is an electrical connector with two screws.

NOTE! VERY IMPORTANT! To remove the resistor block, you have to remove the connector first. But the resistor block is mounted INSIDE the air conditioning duct. If you remove those screws without attaching a string or vice grips or some other method...It will FALL INSIDE THE DUCT and you will wind up using your entire repartoir of profanity several dozen times while you attempt to retrieve it!

[guess how I know this!]]

Anyway, good luck!

N!
Old 01-15-2010, 03:24 PM
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Normy, thaks, by tracing out the wires thats what i figured, but i wanted to get someone to confirm - i've owned a 928 since '82, and never been down this path :-)
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Neil --- 928 OC Regional Rep - Cary, North Carolina
81 928, 84 928S Euro , 86 928 widebody.
1929 Model A Street Rod - build in process.
Land Rover Discovery, Winnebago Brave + Jeep Wrangler, Proline 21WA boat.
Old 01-15-2010, 03:32 PM
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928 S4 Service - John Pirtle

Follow this link. It has some pictures.

look on the left side of the page, under HVAC, click blower motor.
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86.5 928 Indy Red/Black, A/T, 118,456 miles and counting
Old 01-15-2010, 04:02 PM
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the resistor pack is rather easy to retrieve all you need is a long wire with a hook on the end of it.
Once you remove the screws the pack will drop into the well but it wont go far, you can try to hook the wire onto the pack prior to removing the screws use the wire through the pack hole to reposition it along with a set of needle nose pliers to grasp one of the pins
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^^^ Stan ^^^
1988 S4 Auto , Color is Elfenbein Perlglanz, Pearl Gray
1985 Porsche 928 Euro 5 speed , Black on Black 16V
2011 BMW K1300S Magma red
Old 01-16-2010, 08:33 AM
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If you buy a new one to replace it, it may require that you switch a couple wires.
84 was NLA last time I replaced it.
Newer versions are wired differently and require adaptation.
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Last edited by Landseer; 01-17-2010 at 01:42 PM..
Old 01-16-2010, 10:19 AM
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Whoa on the resistor pack....

If the fan does run on DEF but doesn't run on high (4) on the switch - it isn't the resistor pack or the fan motor.

You have a problem with the switch connector or the feed to the switch... don't mess with the resistor pack - its a waste of your time...

Is your blower relay and fuse good?

Alan
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Old 01-17-2010, 08:22 PM
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Thanks Alan, after looking at the diagram I came to that conclusion as well, so i'll probe further. Blower runs fine with slider control all the way to right, defrost - but not at all on the switch.
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Neil --- 928 OC Regional Rep - Cary, North Carolina
81 928, 84 928S Euro , 86 928 widebody.
1929 Model A Street Rod - build in process.
Land Rover Discovery, Winnebago Brave + Jeep Wrangler, Proline 21WA boat.

Last edited by neil30076; 01-18-2010 at 09:54 AM..
Old 01-18-2010, 09:10 AM
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Petie3rd
 
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pull the HVAC head out and verify the connector with the round pins is connected
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^^^ Stan ^^^
1988 S4 Auto , Color is Elfenbein Perlglanz, Pearl Gray
1985 Porsche 928 Euro 5 speed , Black on Black 16V
2011 BMW K1300S Magma red
Old 01-18-2010, 09:59 AM
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Recovering dismantler
 
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Stan, The whole center console is out, the plug was connected, I plan on tracing down the wiring shortly - doing intake/vacuum lines, Injector hoses etc R&R now, then onto electrical - got window working, door locks, electric mirrors all ok, sun roof is jammed - need to remove motor / gearbox etc. ABS light stays on - thats on the list also ++ who knows what!
When i bought this car i was not working - now going back to full time :-( , so now have a reaL sense of urgency to complete - need to deliver car to my daughter in South Carolina in first week of May!
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Neil --- 928 OC Regional Rep - Cary, North Carolina
81 928, 84 928S Euro , 86 928 widebody.
1929 Model A Street Rod - build in process.
Land Rover Discovery, Winnebago Brave + Jeep Wrangler, Proline 21WA boat.
Old 01-18-2010, 10:06 PM
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Petie3rd
 
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make sure to replace the vacuum pods since the console is out
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^^^ Stan ^^^
1988 S4 Auto , Color is Elfenbein Perlglanz, Pearl Gray
1985 Porsche 928 Euro 5 speed , Black on Black 16V
2011 BMW K1300S Magma red
Old 01-19-2010, 06:57 AM
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Quote:
Originally Posted by Mrmerlin View Post
make sure to replace the vacuum pods since the console is out
I think what Merlin is trying to say is replace the Diaphragms (if available). Complete Pods are lot more expensive. I know I did get a quote for Roger on those and there is an expensive diapragm in the set.
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Old 01-19-2010, 07:30 AM
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Easy test to see if it's the relay, try the defroster relay in the fan (believe it's XXI and XXII) and see if that makes a difference.
Old 01-19-2010, 08:12 AM
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Old 01-19-2010, 08:12 AM
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