It's usually pretty easy to access without removing too much. I'm Zookless now so I can't go have a look for you
| auszookers.com https://auszookers.com/forum/ |
|
| blower fan only working on high https://auszookers.com/forum/viewtopic.php?f=5&t=10773 |
Page 1 of 1 |
| Author: | mika [ Wed Mar 31, 2010 1:39 am ] |
| Post subject: | blower fan only working on high |
Hi all, I have a new to me 1990 sierra that i'm getting ready for a RWC but the blower fan only works on the fastest speed. I managed to get the blower switch out with out removing the entire dash. i have cleaned up the switch well and checked all the wiring and plugs i can see that go to the fan motor and still no difference. Does anyone have any ideas as to what it could be? I suspect it's either the switch is buggered, electric motor buggered or a bad connection that i can't see but thought maybe someone has had similar experience. Aslo, anyone know if all 3 speeds need to be working for a RWC in Vic? thanks in advance mika |
|
| Author: | BJPK [ Wed Mar 31, 2010 1:44 am ] |
| Post subject: | Re: blower fan only working on high |
usually the fan speed resistor will be the cause. |
|
| Author: | Scrawny [ Wed Mar 31, 2010 1:55 am ] |
| Post subject: | Re: blower fan only working on high |
BJPK wrote: usually the fan speed resistor will be the cause.
x2. Usually found in the heater box |
|
| Author: | mika [ Wed Mar 31, 2010 1:56 am ] |
| Post subject: | Re: blower fan only working on high |
thanks, do u know where the resistor is ? |
|
| Author: | zookfun [ Wed Mar 31, 2010 2:22 am ] |
| Post subject: | Re: blower fan only working on high |
my zook has just started doing this too |
|
| Author: | mika [ Wed Mar 31, 2010 2:27 am ] |
| Post subject: | Re: blower fan only working on high |
thanks ScrawnC, you beat me to it. Can you access it without removing dash? |
|
| Author: | v.w.dave [ Wed Mar 31, 2010 2:33 am ] |
| Post subject: | Re: blower fan only working on high |
ScrawnC wrote: BJPK wrote: usually the fan speed resistor will be the cause. x2. Usually found in the heater box X3 this is the same for most cars. Highspeed on the fan speed resistor is a Bypass, in short it allows the full 12 volts to pass through to the fan causing full speed. |
|
| Author: | mika [ Wed Mar 31, 2010 2:37 am ] |
| Post subject: | Re: blower fan only working on high |
what do i need to do to fix it? i'm guessing replace it but what's involved? |
|
| Author: | Scrawny [ Wed Mar 31, 2010 9:40 am ] |
| Post subject: | Re: blower fan only working on high |
It's usually pretty easy to access without removing too much. I'm Zookless now so I can't go have a look for you
|
|
| Author: | royce [ Wed Mar 31, 2010 11:36 am ] |
| Post subject: | Re: blower fan only working on high |
look above the fan motor via the drivers footwell youll see a plug that looks lke it plugs into teh heater box, thats the resistor, to get it out unplug it and undo the 2 screws that hold it in once out youll probably find the bimetal strip on it has dirty contacts and cleaning them with some sandpaper will fix it, normally when no slow speeds work its that and not eh resistor elements, which are the little coils of wire, check they arent broken |
|
| Author: | mika [ Wed Mar 31, 2010 10:25 pm ] |
| Post subject: | Re: blower fan only working on high |
thanks a lot guys, I'll check it out tonight. |
|
| Author: | mika [ Thu Apr 01, 2010 1:12 am ] |
| Post subject: | Re: blower fan only working on high |
thanks for the detailed info Royce. Well the resistor elements are broken and very brittle so i need new ones. anyone know where i can get new resistor elements from? |
|
| Author: | Scrawny [ Thu Apr 01, 2010 1:18 am ] |
| Post subject: | Re: blower fan only working on high |
Try Suzistore first, otherwise go genuine. Shouldn't be too dear |
|
| Author: | royce [ Thu Apr 01, 2010 1:23 am ] |
| Post subject: | Re: blower fan only working on high |
shit I think I just chopped some up that were perfect 
I will have a look if you get stuck and cant get one, how far is Yarra Valley form Bulla? the unused resisitor and I will be there in a month or so
|
|
| Author: | mika [ Thu Apr 01, 2010 1:34 am ] |
| Post subject: | Re: blower fan only working on high |
just looked on Suzistore before and not listed but i might give them a call. I ordered some bits from them a week ago and great service from them. Royce Bulla would be about 2hrs from here so hopefully i can get one sooner and with less travel but thanks for the offer, appreciate it. |
|
| Author: | jonno_racing [ Thu Apr 01, 2010 11:07 am ] |
| Post subject: | Re: blower fan only working on high |
mine does the opersate... no full speed but works on other speeds??? i will check that plug latter on though.. broken wire? |
|
| Author: | mika [ Thu Apr 01, 2010 9:36 pm ] |
| Post subject: | Re: blower fan only working on high |
could it be that the switch that needs cleaning? thats what i checked first, i got it out without removing the whole dash |
|
| Page 1 of 1 | All times are UTC + 9:30 hours |
| Powered by phpBB® Forum Software © phpBB Group https://www.phpbb.com/ |
|