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OFF THE BOOST PIPE NOW...
 
A930Rocket's Avatar
 
Join Date: Oct 2003
Location: Mount Pleasant, South Carolina
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I ditched mine when I installed the Hargett shifter. Just have the lever to pull up now. Now I need to figure out how to make the blowers work.
Old 11-22-2009, 04:10 PM
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Glad this got dug up, hadn't noticed your mention of this Paul prior to tP or Ida picked your brain about my heat being on fullblast.

*that* made for a 'comfy' 2300mi June drive to SC, track day, etc.

d'oh

Ask Sandman or Jacob about me cooking them during our dinner commutes those nights there - made me the butt of many a good joke (par/course). Oh, yeah - it's only my pass side so I didn't mind quite as much 8-).

Adding insult to injury - I get full bore heat when it's hot out but roll up windows when cold and not much heat (some). Mocking me, it is...

I'm floored at the commonality of failures for so many of us. WTF? Lame. Sounds like there's more than a few failure modes tho - wondeyful. Some good data coming out here certainly. Tx everyone for their collective insights thus far, quite helpful.

this'll make a good winter's slumber project - sub'n!
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Paul... CT | '87 930 | '07 //S6 v10 JNR | '98 ///M3 vert |
past:

| '01 ///M5 | '96 993 C2 cab | '05 S600 Sport - biturbo V12@Just Not Right 495rwhp / 612rwtq |
| '58 TR3A | '01 //S8 | '95 //S6 6gang | '88 ///M5 | '87 190E 2.3-16 |
Old 11-22-2009, 04:26 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #42 (permalink)
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Paul K ... I suspect your heat boxes are not opening. Check to see if the flapper and such are working properly down where they meet the heat exchangers.
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Last edited by Shadetree930; 11-22-2009 at 05:18 PM..
Old 11-22-2009, 04:40 PM
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Hey guys, where are these blowers ?? I thought we only had the one up front and have the option of fresh air or not ??? Anyone have a pic or diagram ?
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"Todd"
98 Tahoe ,2007 Saturn Vue
86 930 black and stock, 80 930 blue tracdog
91 Spec Miata (yeah I race a chick car)
"life"ll kill ya" Warren Zevon
Old 11-23-2009, 09:27 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #44 (permalink)
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They are under the curved carpet covered fiberboard things that are under the dash on each outer side of the footwell and held on with 3 tapping screws. They're plastic and held in place by the hoses on each end.

The older cars and normally aspirated cars didn't have the footwell blowers and the carpeted covers were shallower and had a pocket for maps or whatever.
Old 11-23-2009, 09:42 AM
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Quote:
Originally Posted by pete3799 View Post
My 79 dosn't have footwell blowers.
So maybe the 79s don't have blowers. How do we get airflow then? I don't think the fresh air blower comes into play here.
Old 11-25-2009, 10:09 AM
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Quote:
Originally Posted by JFairman View Post
They are under the curved carpet covered fiberboard things that are under the dash on each outer side of the footwell and held on with 3 tapping screws. They're plastic and held in place by the hoses on each end.

The older cars and normally aspirated cars didn't have the footwell blowers and the carpeted covers were shallower and had a pocket for maps or whatever.

Hmmm, my car is a 79 and I don't have map pockets that I can see.
Under the curved vents is just the hose from the luggage compartment. I can see it from the top side when I pull the hose off.

So if I don't have blowers then how does the air get moved? Does it get flow from the engine fan?
Old 11-25-2009, 10:17 AM
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The inline blowers in the foot wells are just helper fans, all main air flow comes from the engine fan.
Mark
Old 11-25-2009, 11:14 AM
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OK thanks Mark. I will need to make do with the heat that I have then. It is unbalanced, providing more heat on the drivers side.
Old 11-25-2009, 04:22 PM
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Ok checked my 86 I've got them,, and they don't work!!!
Nice thanks guys I was ignorant and happy before you started this thread!!!
I've got an 86 wiring diagram if anyone needs it
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98 Tahoe ,2007 Saturn Vue
86 930 black and stock, 80 930 blue tracdog
91 Spec Miata (yeah I race a chick car)
"life"ll kill ya" Warren Zevon
Old 11-27-2009, 09:06 PM
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Hi guys, I'm new to this forum and my problem is slightly different.
My footwell blowers are working permanently even with the key out of the ignition. Flat battery every day.
Does anybody have a wiring diagram.
Mine is a 89 German Spec 930 5 speed.
Thanks.
Old 12-15-2009, 10:08 AM
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i believe 4th or 5th black relay controls the footwell blowers. try another relay and if all fails remove it .
Old 12-15-2009, 05:49 PM
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I've have same problem 88 930 cab. a fan on one of the motors worked its way up the shaft and melted to the housing.was able to pull fan down,and works fine now.My fans run all the time also, check Bentley Service Manual 84 -89
Page 800-6 has specks for ohms readings on the pass compart temp sensor
and temp control, between the seats( pass seat has to come out) might help Trevor
.
Old 12-16-2009, 01:40 AM
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Just worked on mine. 88 930 YES motors are supposed to tune off .Check servo rod length, Check ohms speck At control between seat.Refer to Bentley Manual specks heater control. I found out that if servo works right moves to pos. that turns off sidewall motors. good luck.
Trevor
Old 12-17-2009, 09:38 PM
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Hi Trevor,
Okay I've also been busy on mine today. Found remainder of old alarm and immobilizer under dashboard. Removed everything, reconnected all wiring as per colours and size. Everything works exept that the footwell blowers still stay on. I did notice now that if I turn the ignition key to the accessory position then the fans stop!
I also suspect the control between the seats and have now taken it out. Unfortunately I don't have the Bently Manual so I don't know what the ohms speck is and at which points I need to check.
Thanks Jorg.
Old 12-18-2009, 08:37 AM
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Okay, found the fault, back part of ignition switch is cracked, so the one contact plate had moved inside causing this circuit to be under power even when switched of.
Got a new switch today and it's working correctly now.
Thanks for the input on this one.
Jorg.
Old 12-22-2009, 09:49 AM
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OK .... I now know what my problem is with the footwell blowers. It is a bad micro switch in the autoheat center console. Anyone have any experience with replacing these? If I walk into a electrical supply (or Radio Shack) what am I going to be asking for?

<------Knows only enough about electrical to screw things up.
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Old 11-04-2010, 09:29 AM
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Autoheat Microswitches

Paul,
I replaced my microswitches about three years ago. The two switches sit side-by-side and I had to solder them into place. It was a cake job and the switches are cheap! (Something cheap in a P-car?) Tonight, I'll post the manufacturer's name (Crouzet???), where I got them (internet electrical parts house), and the p/n. The switches I installed were the exact same as the OEM units.
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Old 11-04-2010, 10:52 AM
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Paul! Tx for digging this 'un up yet again... I never did make any headway on mine, and man has it been MOCKING ME all fall. Ballsack melting heat on hottest daze of summer, colder than a witch's tit during cold daze. WTF!

Parking it for season Sat, will get up / under / in thar and figure out what gives. Good luck, looking forward to your progress. If you know only enough to screw things up, I know even less 8-).
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Paul... CT | '87 930 | '07 //S6 v10 JNR | '98 ///M3 vert |
past:

| '01 ///M5 | '96 993 C2 cab | '05 S600 Sport - biturbo V12@Just Not Right 495rwhp / 612rwtq |
| '58 TR3A | '01 //S8 | '95 //S6 6gang | '88 ///M5 | '87 190E 2.3-16 |
Old 11-04-2010, 11:36 AM
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source for autoheat microswitch

Paul,
This is where I got my switches; "onlinecomponents.com". 1220 Olympic Blvd, Santa Monica, Ca., 90404. Fone=414-371-1500. Fax=414-365-3288.
Part number is "831330C1LR". Mfgr. is Crouzet-Schneider. I think that you have to buy a minimum of ten but the switch is only a couple of bucks each.
Good Luck,
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Old 11-05-2010, 05:56 AM
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