A/C MOTOR STOPPED BLOWING! PLEASE HELP!!
Thread Starter
Safety Car
Joined: Mar 2002
Posts: 4,411
Likes: 1
From: Okeechobee Florida
A/C MOTOR STOPPED BLOWING! ITS DONE!
it wasnt long ago that i mentioned on here that my a/c hardly blew and most everyone implied that that is pretty normal...
well...i think mine was dying and may have now crapped the bed!
i checked all the connections that i could find etc...well, i didnt check for voltage...i didnt spend a lot of time on them actually except for checking and cleaning them...
and when i finally found the blower motor i thought YIKES!! if i have to change this, how the hell am i going to get it out through there?!?!
am i missing something here? what else should i check? if i have to change it, how hard is it??
it is SO darn hot here in florida right now and it is only going to get worse...i NEED to fix this badly....
thanx
[Modified by SIGNGUY, 9:03 PM 6/4/2002]
[Modified by SIGNGUY, 3:03 PM 6/8/2002]
well...i think mine was dying and may have now crapped the bed!
i checked all the connections that i could find etc...well, i didnt check for voltage...i didnt spend a lot of time on them actually except for checking and cleaning them...
and when i finally found the blower motor i thought YIKES!! if i have to change this, how the hell am i going to get it out through there?!?!
am i missing something here? what else should i check? if i have to change it, how hard is it??
it is SO darn hot here in florida right now and it is only going to get worse...i NEED to fix this badly....
thanx
[Modified by SIGNGUY, 9:03 PM 6/4/2002]
[Modified by SIGNGUY, 3:03 PM 6/8/2002]
Melting Slicks
Joined: Oct 1999
Posts: 2,581
Likes: 14
From: Tolar Texas
Re: A/C MOTOR STOPPED BLOWING! PLEASE HELP!! (SIGNGUY)
I certainly didn't find it to be one of the WORST jobs to do on my Vette but it could take a little time. You should be able to access all of the little hex headed screws without removing anything else.
I purchased a new fan motor from AutoZone. I don't recall the exact price but it wasn't very expensive. I'm thinking it was less than $20.
I've seen several forum members state that they used a fan that was built for a C4. They say these fans move a lot more air.
I purchased a new fan motor from AutoZone. I don't recall the exact price but it wasn't very expensive. I'm thinking it was less than $20.
I've seen several forum members state that they used a fan that was built for a C4. They say these fans move a lot more air.
Thread Starter
Safety Car
Joined: Mar 2002
Posts: 4,411
Likes: 1
From: Okeechobee Florida
Re: A/C MOTOR STOPPED BLOWING! PLEASE HELP!! (MIKER)
thanx man...i really appreciate the info...
it just looks to me like there is too much stuff in the way for it to come out...it DOES come out the front? right?
i also find the C4 fan thing interesting...i would LOVE to have a more powerful fan motor! that would be great :)
signguy
it just looks to me like there is too much stuff in the way for it to come out...it DOES come out the front? right?
i also find the C4 fan thing interesting...i would LOVE to have a more powerful fan motor! that would be great :)
signguy
Melting Slicks
Joined: Aug 2000
Posts: 2,900
Likes: 2
From: Green Cove Springs FL
Re: A/C MOTOR STOPPED BLOWING! PLEASE HELP!! (SIGNGUY)
thanx man...i really appreciate the info...
it just looks to me like there is too much stuff in the way for it to come out...it DOES come out the front? right?
i also find the C4 fan thing interesting...i would LOVE to have a more powerful fan motor! that would be great :)
signguy
it just looks to me like there is too much stuff in the way for it to come out...it DOES come out the front? right?
i also find the C4 fan thing interesting...i would LOVE to have a more powerful fan motor! that would be great :)
signguy
So what did I do? Nothing... I was testing the AC one last time and found out that cold air was blowing through the footwell ducts and high speed. Could it be that small broken vaccuum line that I found a few days earlier? I haven't patched it yet, so I don't know!
It sounds like your blower unit is bad though. Good luck!
Thread Starter
Safety Car
Joined: Mar 2002
Posts: 4,411
Likes: 1
From: Okeechobee Florida
Re: A/C MOTOR STOPPED BLOWING! PLEASE HELP!! (FroDaddy)
thanx for the info...
i want to check the voltage going into it 1st...is the purple wire going under it the power wire? ill probably change it anyways for more air but if the problem is somewhere else i want to fix it too...
how do you get it out of there?
i want to check the voltage going into it 1st...is the purple wire going under it the power wire? ill probably change it anyways for more air but if the problem is somewhere else i want to fix it too...
how do you get it out of there?
Melting Slicks
Joined: May 2000
Posts: 2,305
Likes: 5
From: Orlando,Fl,USA
Re: A/C MOTOR STOPPED BLOWING! PLEASE HELP!! (FroDaddy)
It sounds like a vac. problem. Mine did this also. The small vac line that feeds into the firewall to the right of the distributor was hanging off. Pushed it in and walla..
The fan motor looks harder than it is , just keep some band aides handy. Mine fried the wire before I replaced it and than I discovered the vac. line problem. I also rtv'd the vac hatch door shut ( it was rusted stuck) to keep the outside air out.That is located by the base of the windshield on the pass side behind the plastic net thing. :smash:
The fan motor looks harder than it is , just keep some band aides handy. Mine fried the wire before I replaced it and than I discovered the vac. line problem. I also rtv'd the vac hatch door shut ( it was rusted stuck) to keep the outside air out.That is located by the base of the windshield on the pass side behind the plastic net thing. :smash:
Le Mans Master
Joined: Apr 2002
Posts: 5,537
Likes: 280
From: Egg Harbor Township NJ
2015 C2 of Year
St. Jude Donor '04-'05-'06-'07-'08-'09-'10, '14-'15
Re: A/C MOTOR STOPPED BLOWING! PLEASE HELP!! (SIGNGUY)
OK, Before you pull the blower motor locate the blower motor resistor and test it out. If it took a poop, no blower!! It should be located some where in the discharge plenum, but I would check the service manual first.
Good luck...........
65 Daulquad Cp.. 86 Vortec Blown Cp. 73 Cop Motor 460 Thunderchicken
Good luck...........
65 Daulquad Cp.. 86 Vortec Blown Cp. 73 Cop Motor 460 Thunderchicken
Melting Slicks
Joined: Aug 1999
Posts: 3,123
Likes: 13
From: Hollywood, Florida
Re: A/C MOTOR STOPPED BLOWING! PLEASE HELP!! (SIGNGUY)
Signguy,
Are all of your blower speeds dead, or just the HI. Hi side has a seperate relay and 12 volt in line fuse. My high speed relay connector was toast.
Are all of your blower speeds dead, or just the HI. Hi side has a seperate relay and 12 volt in line fuse. My high speed relay connector was toast.
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Thread Starter
Safety Car
Joined: Mar 2002
Posts: 4,411
Likes: 1
From: Okeechobee Florida
Re: A/C MOTOR STOPPED BLOWING! PLEASE HELP!! (SIGNGUY)
is the chevy dealer the only place to get a Delco replacement blower...can i get one anywhere else cheaper?
i live in a very small town and the dealer here is VERY high!
i live in a very small town and the dealer here is VERY high!
Racer
Joined: Apr 2002
Posts: 336
Likes: 0
From: Lafayette, Indiana
Re: A/C MOTOR STOPPED BLOWING! PLEASE HELP!! (SIGNGUY)
is the chevy dealer the only place to get a Delco replacement blower...can i get one anywhere else cheaper?
i live in a very small town and the dealer here is VERY high!
i live in a very small town and the dealer here is VERY high!
By the way, I changed the blower motor on my '78. It wasn't bad. I took the cooling system over flow tank off as recommended by Haynes. (Gave me a chance to clean it out.) Still had to twist and turn it to get it past the AC hose etc..
I put in one from Auto Zone. Approx. $20.00.
[Modified by Indy Year 25, 11:42 PM 6/4/2002]
Instructor
Joined: Jun 2002
Posts: 117
Likes: 0
From: epping nh
Re: A/C MOTOR STOPPED BLOWING! PLEASE HELP!! (Indy Year 25)
Damn Miker nice print. To check relay apply power to the hot side and see if the contact pops over to the other side monitoring the points with continuity or omh meter.
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
Re: A/C MOTOR STOPPED BLOWING! PLEASE HELP!! (SIGNGUY)
I think you will find you have to take the fan off the motor, once the units are out of the housing...you should replace the grounding wire from the motor frame plug in brass tab to the engine block, some of them drop about 1.5 volts across that wire, it'w worth a LOT of blower power....in addition the blower relay may be fried, and the main brown wire feeding power from fuse block to controll head may be open fuse under dash....see that it's got 12 volts on it...on high speed your DVM shold read full system voltage with near zero drop at the blower motor itself be careful there on that check as make NO assumptions about any wiring, it's all suspect, I rewired everything in site to get mine up to snuff again....
it's amazing what happens to 25 year old electricals, the corrosion is horrendous, causing burnt wires, heated terminals, voltage drops across any and all heavy current connections.....and in a car, most all devices draw plenty of current, due to lack of system voltage....
decades ago when they went from 6 volts to 12 volts, they should have just stepped it up to 24 minimum the old military standard, or better yet 48 volts...and had over with it, saved a LOT on wiring gauge and current issues...
GENE
it's amazing what happens to 25 year old electricals, the corrosion is horrendous, causing burnt wires, heated terminals, voltage drops across any and all heavy current connections.....and in a car, most all devices draw plenty of current, due to lack of system voltage....
decades ago when they went from 6 volts to 12 volts, they should have just stepped it up to 24 minimum the old military standard, or better yet 48 volts...and had over with it, saved a LOT on wiring gauge and current issues...
GENE
Burning Brakes
Joined: Dec 2001
Posts: 1,003
Likes: 0
From: GA
Re: A/C MOTOR STOPPED BLOWING! PLEASE HELP!! (SIGNGUY)
If you can get a Part # go to http://gmpartsdirect.com/ and it should be considerably cheaper. I've seen as much as over half the price. Sometimes it's worth it sometimes not.
Burning Brakes
Joined: Nov 2001
Posts: 787
Likes: 1
From: Toronto Ontario
Re: A/C MOTOR STOPPED BLOWING! PLEASE HELP!! (SIGNGUY)
SIGNGUY: If you check your orginal post I stated that you should replace you blower motor. Stop wasting time just replace the sucker and you are done. Any rebuilt unit will do, it's just a cheap electric motor.
Thread Starter
Safety Car
Joined: Mar 2002
Posts: 4,411
Likes: 1
From: Okeechobee Florida
Re: A/C MOTOR STOPPED BLOWING! PLEASE HELP!! (73-454)
#1...im not wasting time...if you ck my post...it was 8:35 last night...not much i could do last night!
#2...the problem might not be the motor (although it probably is)
it just MIGHT be something else...
#2...the problem might not be the motor (although it probably is)
it just MIGHT be something else...
Thread Starter
Safety Car
Joined: Mar 2002
Posts: 4,411
Likes: 1
From: Okeechobee Florida
GOT A NEW DELCO MOTOR...BUT...
well...my local chevy dealer had a fan motor in stock...
although the motors are the almost same, the squirrel cage is about 3/4" taller...
and the blades have more of a curve to them...i imagine this gives more blowing power...
well...there is NO WAY the squirrel cage will fit in the housing...so i figured i could just exchange the cages...
not so easy...the old one is held on with a nut...the armeture shaft is threaded on the end...
and the new one is a knurled shaft and the cage is pressed on...
they are the same length and the old cage "pushes" very nicely onto the new motor...
i thought about dieing some threads on the new motor shaft and putting a nut on it and then i thought id wait and see what you guys thought...
i want the delco blower motor because it is probably better than the "auto zone" kind but i wonder if its worth all this trouble...and it may not work anyway...
can you even thread an armeture? isnt it hardened steel?
it cost me $69 and they say the aoto zone one costs about $20...
i dont know what to do....
do the auto zone ones come with the proper cage height or do you use your old cage?
although the motors are the almost same, the squirrel cage is about 3/4" taller...
and the blades have more of a curve to them...i imagine this gives more blowing power...
well...there is NO WAY the squirrel cage will fit in the housing...so i figured i could just exchange the cages...
not so easy...the old one is held on with a nut...the armeture shaft is threaded on the end...
and the new one is a knurled shaft and the cage is pressed on...
they are the same length and the old cage "pushes" very nicely onto the new motor...
i thought about dieing some threads on the new motor shaft and putting a nut on it and then i thought id wait and see what you guys thought...
i want the delco blower motor because it is probably better than the "auto zone" kind but i wonder if its worth all this trouble...and it may not work anyway...
can you even thread an armeture? isnt it hardened steel?
it cost me $69 and they say the aoto zone one costs about $20...
i dont know what to do....
do the auto zone ones come with the proper cage height or do you use your old cage?