1989 blower motor + turn signals out - Ford Mustang Forums : Corral.net Mustang Forum
 2Likes
  • 1 Post By ashleyroachclip
  • 1 Post By indy2000
 
LinkBack Thread Tools Display Modes
post #1 of 20 Old 12-29-2016, 02:19 PM Thread Starter
Indo-Canuck-Yankee
 
Shaker666's Avatar
 
Trader Feedback: (4)
Join Date: Sep 2002
Location: Tucson, AZ
Posts: 2,733
Garage
1989 blower motor + turn signals out

HVAC blower motor stopped working along with my turn signals the other day. No blown fuses. Not really sure where to start.


'89 5.0L LX hatch: all 90mm 2.2L Blowzilla Dart Iron Eagle 306 @ 8.4:1, ported Vic Jr heads, TMoss ported GT40 lower, Deka 80# injectors, EDIS8, GUFB-A9L2-Moates tuned, Tremec 3550, 3.31 gears w/31-spline TruTrac
'66 GT 2+2 Fastback: carb'd 289, Canfield heads - EFI transformation pending

'71 Mach 1: totaled - R.I.P.
Shaker666 is offline  
Sponsored Links
Advertisement
 
post #2 of 20 Old 12-29-2016, 08:24 PM
Registered User
 
indy2000's Avatar
 
Trader Feedback: (3)
Join Date: Oct 2001
Location: vancouver
Posts: 21,262
with the wiring diagram


89 GT gr-40, KB2200(10psi), tweecer R/T,LC-1, 22gal cell, w/tailpipes.
indy2000 is offline  
post #3 of 20 Old 12-29-2016, 11:33 PM Thread Starter
Indo-Canuck-Yankee
 
Shaker666's Avatar
 
Trader Feedback: (4)
Join Date: Sep 2002
Location: Tucson, AZ
Posts: 2,733
Garage
Quote:
Originally Posted by indy2000 View Post
with the wiring diagram
Do you have any high quality PDFs of the wiring diagrams? My Haynes manual is getting really ragged and its always been way too small to read easily. Especially in a dimly lit garage.

'89 5.0L LX hatch: all 90mm 2.2L Blowzilla Dart Iron Eagle 306 @ 8.4:1, ported Vic Jr heads, TMoss ported GT40 lower, Deka 80# injectors, EDIS8, GUFB-A9L2-Moates tuned, Tremec 3550, 3.31 gears w/31-spline TruTrac
'66 GT 2+2 Fastback: carb'd 289, Canfield heads - EFI transformation pending

'71 Mach 1: totaled - R.I.P.
Shaker666 is offline  
Sponsored Links
Advertisement
 
post #4 of 20 Old 12-30-2016, 12:38 AM
Registered User
 
indy2000's Avatar
 
Trader Feedback: (3)
Join Date: Oct 2001
Location: vancouver
Posts: 21,262
bbb industries

or wait for me to scan

89 GT gr-40, KB2200(10psi), tweecer R/T,LC-1, 22gal cell, w/tailpipes.
indy2000 is offline  
post #5 of 20 Old 12-31-2016, 08:24 PM Thread Starter
Indo-Canuck-Yankee
 
Shaker666's Avatar
 
Trader Feedback: (4)
Join Date: Sep 2002
Location: Tucson, AZ
Posts: 2,733
Garage
Ok, so it appears to be intermittent. I've traced it down to 4 dead circuits on the fusebox. Fuse positions 5, 9, 13, and 15 are dead; backprobing them with a DMM yields 0V, fuses are intact.

Fuse #5: Turn lights, backup lights, low fluid module & display module, heated backlite relay
Fuse #9: Heater blower, A/C blower
Fuse #13: Instrument illumination, ISO symbols
Fuse #15: Fog lamps

Looking at some schematics it looks like fuses 5 and 9 are actually powered by the grey/yellow wire from the ignition switch. Backprobing this wire on the fusebox yields no voltage... so would that indicate that the ignition switch could be the problem? I recently replaced the ignition lock cylinder myself and I had to fuss with it in order to get it clocked correctly, maybe I didn't do it right? Everything used to work reliably after the ignition cylinder replacement, but not working well anymore. Sound familiar to anyone?

'89 5.0L LX hatch: all 90mm 2.2L Blowzilla Dart Iron Eagle 306 @ 8.4:1, ported Vic Jr heads, TMoss ported GT40 lower, Deka 80# injectors, EDIS8, GUFB-A9L2-Moates tuned, Tremec 3550, 3.31 gears w/31-spline TruTrac
'66 GT 2+2 Fastback: carb'd 289, Canfield heads - EFI transformation pending

'71 Mach 1: totaled - R.I.P.

Last edited by Shaker666; 12-31-2016 at 08:36 PM.
Shaker666 is offline  
post #6 of 20 Old 12-31-2016, 09:32 PM
Registered User
 
indy2000's Avatar
 
Trader Feedback: (3)
Join Date: Oct 2001
Location: vancouver
Posts: 21,262
how are you backprobing the fuses?

89 GT gr-40, KB2200(10psi), tweecer R/T,LC-1, 22gal cell, w/tailpipes.
indy2000 is offline  
post #7 of 20 Old 12-31-2016, 09:49 PM
Registered User
 
indy2000's Avatar
 
Trader Feedback: (3)
Join Date: Oct 2001
Location: vancouver
Posts: 21,262
5 and 9 are hot in run only

15 is hot only with headlight switch closed

13 is hot only with headlight switch closed

power to ign switch is protected by the fuse link a

if you goofed the switch, you would blow the link

89 GT gr-40, KB2200(10psi), tweecer R/T,LC-1, 22gal cell, w/tailpipes.
indy2000 is offline  
post #8 of 20 Old 01-01-2017, 01:37 PM Thread Starter
Indo-Canuck-Yankee
 
Shaker666's Avatar
 
Trader Feedback: (4)
Join Date: Sep 2002
Location: Tucson, AZ
Posts: 2,733
Garage
Yeah, I'll have to dig into the ignition switch and check the fuselink. Thanks for replying.

I backprobed by removing the fusebox and literally probing the back of the box where the wires go in. Is it normal to have the hazard flasher mounted on the back of the fusebox, where it's not accessible?

'89 5.0L LX hatch: all 90mm 2.2L Blowzilla Dart Iron Eagle 306 @ 8.4:1, ported Vic Jr heads, TMoss ported GT40 lower, Deka 80# injectors, EDIS8, GUFB-A9L2-Moates tuned, Tremec 3550, 3.31 gears w/31-spline TruTrac
'66 GT 2+2 Fastback: carb'd 289, Canfield heads - EFI transformation pending

'71 Mach 1: totaled - R.I.P.
Shaker666 is offline  
post #9 of 20 Old 01-01-2017, 01:42 PM
Registered User
 
indy2000's Avatar
 
Trader Feedback: (3)
Join Date: Oct 2001
Location: vancouver
Posts: 21,262
Stop what you are doing, no reason to check ign switch

to check fuses, there is a place to put your probe, on the front of the fuse, all you do is check both sides of the fuse to ground, test light is fastest.

and those fuses must be checked at the correct ign switch position

that is not the signal flasher, that is the hazard

signal is even more difficult, mounted on column

89 GT gr-40, KB2200(10psi), tweecer R/T,LC-1, 22gal cell, w/tailpipes.
indy2000 is offline  
post #10 of 20 Old 01-01-2017, 01:57 PM Thread Starter
Indo-Canuck-Yankee
 
Shaker666's Avatar
 
Trader Feedback: (4)
Join Date: Sep 2002
Location: Tucson, AZ
Posts: 2,733
Garage
I checked all the fuses before I pulled the box out. And yes, I checked them with the key off and key on since many of the circuits are ignition switch controlled. I know the signal flasher in question is the hazard, the turn signal unit is dangling behind my dash. I should probably zip-tie that back in or something.

After pulling the box out I noticed that a previous owner had attempted to splice into the brown/orange wire going to the heater/AC. This wire is like 12 gauge or something and the crimp and heatshrink wasn't done very well. Copper was exposed and only half the strands were intact. I cut out the offending splice and repaired that using a proper ratcheting crimper and some adhesive heat shrink.

Happy New Year, btw!


'89 5.0L LX hatch: all 90mm 2.2L Blowzilla Dart Iron Eagle 306 @ 8.4:1, ported Vic Jr heads, TMoss ported GT40 lower, Deka 80# injectors, EDIS8, GUFB-A9L2-Moates tuned, Tremec 3550, 3.31 gears w/31-spline TruTrac
'66 GT 2+2 Fastback: carb'd 289, Canfield heads - EFI transformation pending

'71 Mach 1: totaled - R.I.P.

Last edited by Shaker666; 01-01-2017 at 01:59 PM.
Shaker666 is offline  
post #11 of 20 Old 01-01-2017, 02:03 PM
Registered User
 
indy2000's Avatar
 
Trader Feedback: (3)
Join Date: Oct 2001
Location: vancouver
Posts: 21,262
some wiring wasn't done properly on that car?

happy new year,

you swimming today?

89 GT gr-40, KB2200(10psi), tweecer R/T,LC-1, 22gal cell, w/tailpipes.
indy2000 is offline  
post #12 of 20 Old 01-01-2017, 02:07 PM Thread Starter
Indo-Canuck-Yankee
 
Shaker666's Avatar
 
Trader Feedback: (4)
Join Date: Sep 2002
Location: Tucson, AZ
Posts: 2,733
Garage
Quote:
Originally Posted by indy2000 View Post
some wiring wasn't done properly on that car?

happy new year,

you swimming today?
I've finally repaired all the "ghetto" in the Ghetto. There has been some bad wiring done to it in the past, wasn't me!

Very wet in Tucson today, but it's nice. Lots of snow down in Ricemound, I hear?

'89 5.0L LX hatch: all 90mm 2.2L Blowzilla Dart Iron Eagle 306 @ 8.4:1, ported Vic Jr heads, TMoss ported GT40 lower, Deka 80# injectors, EDIS8, GUFB-A9L2-Moates tuned, Tremec 3550, 3.31 gears w/31-spline TruTrac
'66 GT 2+2 Fastback: carb'd 289, Canfield heads - EFI transformation pending

'71 Mach 1: totaled - R.I.P.
Shaker666 is offline  
post #13 of 20 Old 01-01-2017, 02:26 PM
Registered User
 
ashleyroachclip's Avatar
 
Trader Feedback: (5)
Join Date: Jun 2003
Location: Roseburg Oregon
Posts: 1,619
The ignition switch is known for problems , as they seperate .
Since you said this is intermitten , i would pull the covers off the column , and have a look at the switch.
It is a cheap part to replace , and if original , probably needs it
Shaker666 likes this.
ashleyroachclip is offline  
post #14 of 20 Old 01-01-2017, 02:53 PM
Registered User
 
indy2000's Avatar
 
Trader Feedback: (3)
Join Date: Oct 2001
Location: vancouver
Posts: 21,262
Quote:
Originally Posted by Shaker666 View Post
I've finally repaired all the "ghetto" in the Ghetto. There has been some bad wiring done to it in the past, wasn't me!

Very wet in Tucson today, but it's nice. Lots of snow down in Ricemound, I hear?
not really,,,,,,small squall came through last night, turned to ice......

get any more fog?

89 GT gr-40, KB2200(10psi), tweecer R/T,LC-1, 22gal cell, w/tailpipes.
indy2000 is offline  
post #15 of 20 Old 01-02-2017, 11:13 AM Thread Starter
Indo-Canuck-Yankee
 
Shaker666's Avatar
 
Trader Feedback: (4)
Join Date: Sep 2002
Location: Tucson, AZ
Posts: 2,733
Garage
So I pulled the column cover off and inspected the ignition switch. It was coming apart near the front and would explain why some of the circuits weren't working... the switch has been coming apart. BWD makes a Taiwanese copper terminal replacement for $17, Motorcraft available locally for about $37. Motorcraft for this one?

'89 5.0L LX hatch: all 90mm 2.2L Blowzilla Dart Iron Eagle 306 @ 8.4:1, ported Vic Jr heads, TMoss ported GT40 lower, Deka 80# injectors, EDIS8, GUFB-A9L2-Moates tuned, Tremec 3550, 3.31 gears w/31-spline TruTrac
'66 GT 2+2 Fastback: carb'd 289, Canfield heads - EFI transformation pending

'71 Mach 1: totaled - R.I.P.
Shaker666 is offline  
post #16 of 20 Old 01-02-2017, 11:31 AM
Registered User
 
indy2000's Avatar
 
Trader Feedback: (3)
Join Date: Oct 2001
Location: vancouver
Posts: 21,262
it should be covered at ford under a recall

have a ford dealership, do a OASIS report.

its a RECALL item
Shaker666 likes this.

89 GT gr-40, KB2200(10psi), tweecer R/T,LC-1, 22gal cell, w/tailpipes.
indy2000 is offline  
post #17 of 20 Old 01-02-2017, 11:44 AM Thread Starter
Indo-Canuck-Yankee
 
Shaker666's Avatar
 
Trader Feedback: (4)
Join Date: Sep 2002
Location: Tucson, AZ
Posts: 2,733
Garage
Quote:
Originally Posted by indy2000 View Post
it should be covered at ford under a recall

have a ford dealership, do a OASIS report.

its a RECALL item
That's interesting. I did a quick search on the NHTSA website and it won't process my VIN anymore for some reason. I used to be able to lookup TSBs before. You really think it's worth the effort to get Ford to replace it? It's kind of dead in the garage right now, I'd need just the part. Should I pay a visit to the Ford dealer today then?

'89 5.0L LX hatch: all 90mm 2.2L Blowzilla Dart Iron Eagle 306 @ 8.4:1, ported Vic Jr heads, TMoss ported GT40 lower, Deka 80# injectors, EDIS8, GUFB-A9L2-Moates tuned, Tremec 3550, 3.31 gears w/31-spline TruTrac
'66 GT 2+2 Fastback: carb'd 289, Canfield heads - EFI transformation pending

'71 Mach 1: totaled - R.I.P.
Shaker666 is offline  
post #18 of 20 Old 01-02-2017, 12:04 PM
Registered User
 
indy2000's Avatar
 
Trader Feedback: (3)
Join Date: Oct 2001
Location: vancouver
Posts: 21,262
your choice

I would at least give the dealership your vin to look up.

89 GT gr-40, KB2200(10psi), tweecer R/T,LC-1, 22gal cell, w/tailpipes.
indy2000 is offline  
post #19 of 20 Old 01-02-2017, 01:40 PM Thread Starter
Indo-Canuck-Yankee
 
Shaker666's Avatar
 
Trader Feedback: (4)
Join Date: Sep 2002
Location: Tucson, AZ
Posts: 2,733
Garage
Quote:
Originally Posted by indy2000 View Post
your choice

I would at least give the dealership your vin to look up.
Alright, so I contacted the dealership. There's a TSB out for intermittent instrumentation lighting, turn signals, etc. and the repair action is ignition switch replacement. Unfortunately, at least in the US, it is not marked for RECALL action, it's just a TSB. So no dice on that front.

I did find a new Motorcraft SW2474 for $31 locally and installed it (after borrowing my friend's tamper proof torx socket set) and everything is working again.
So thanks guys, for helping diagnose and resolve this problem! The switch had come apart as ashleyroachclip had described.

'89 5.0L LX hatch: all 90mm 2.2L Blowzilla Dart Iron Eagle 306 @ 8.4:1, ported Vic Jr heads, TMoss ported GT40 lower, Deka 80# injectors, EDIS8, GUFB-A9L2-Moates tuned, Tremec 3550, 3.31 gears w/31-spline TruTrac
'66 GT 2+2 Fastback: carb'd 289, Canfield heads - EFI transformation pending

'71 Mach 1: totaled - R.I.P.
Shaker666 is offline  
post #20 of 20 Old 01-02-2017, 01:52 PM
Registered User
 
indy2000's Avatar
 
Trader Feedback: (3)
Join Date: Oct 2001
Location: vancouver
Posts: 21,262
call ford, hotline, you got a load of bs

that recall if yours not fixed yet, exists forever. regardless of country.......

anyhoo.....ya got it fixed,,,,,,now fix the rest of the wiring.

89 GT gr-40, KB2200(10psi), tweecer R/T,LC-1, 22gal cell, w/tailpipes.
indy2000 is offline  
Sponsored Links
Advertisement
 
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Mustang Forums : Corral.net Mustang Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
For Sale Gt500 blower FS FT MightyJo3Young Power Adders 0 11-29-2013 01:38 PM
For Sale Vortech YSI Driverside Blower Kit Adamsy87 Power Adders 8 11-09-2013 03:32 PM
PD Blower vs Centrifugal Blower Jensanity Superchargers 10 02-02-2013 08:41 AM
Blower belt life? Krinkov Superchargers 9 08-03-2011 09:48 PM
all roots blown cars:would you consider a blower upgrade? PURPLEMUSTANG GT & SOHC 2 12-01-2001 09:54 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome