1969 AC Blower Motor Problem! HELP! - Team Camaro Tech
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post #1 of 16 (permalink) Old Jun 13th, 07, 11:55 AM Thread Starter
 
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1969 AC Blower Motor Problem! HELP!

I really need help! I am hoping someone can give me some ideas or advice.
Here goes...

1969 - Original air condition system. Everytime I turn the switch to high (to blow more a/c) it stop blowing. It will work great on every other setting, just as soon as you turn it to high, it completely stops!

I have changed the blower relay, blower resister, fuse, switch and blower motor. Nothing has fixed this.

Anyone know what it could be or any advice? I desperately need help!
Thanks in advance,
Keri
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post #2 of 16 (permalink) Old Jun 13th, 07, 01:19 PM
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Re: 1969 AC Blower Motor Problem! HELP!

Mine started to do the same a few yrs back
Have rechecked everything several times
Never figured out why

My Spelling is not incorrect...it is creative

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post #3 of 16 (permalink) Old Jun 13th, 07, 02:50 PM
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Re: 1969 AC Blower Motor Problem! HELP!

Did you change the in-line fuse in the power lead to the blower relay? located in the area between the distributor and the A/C box? that is what it sounds like.

TTFN
Mat

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post #4 of 16 (permalink) Old Jun 13th, 07, 03:45 PM
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rob
 
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Re: 1969 AC Blower Motor Problem! HELP!

Im redoing my original 69 sb a/c now. I got my 3 speeds to work after awhile but still didn't have high speed. This is how I just fixed mine. I took off the relay clip on the suitcase with the wires on it and gave them a light sanding and put it back . I looked over my in-line fuse and checked the two part fuse holder and noticed a tiny crack. I took the fuse out and examined the wires and fuse. There was a tiny crack where in the fuse holder cap which may have caused a loose connection. I used super glue in the tiny crack opposite where the spring is and now the fan roars on high.The old fuse itself was fine. I had no fan and then only the 3 speeds so I know where your coming from. Good luck.
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post #5 of 16 (permalink) Old Jun 13th, 07, 07:16 PM Thread Starter
 
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Re: 1969 AC Blower Motor Problem! HELP!

There are 12 volts on each side of inline fuse, so I would think that is ok!

Wouldn't you?

Last edited by Trickie636; Jun 13th, 07 at 07:22 PM. Reason: spelling
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post #6 of 16 (permalink) Old Jun 13th, 07, 08:06 PM Thread Starter
 
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Re: 1969 AC Blower Motor Problem! HELP!

Wanted to reply in this post for previous post I did!

Here is the relay and its color wires, If you dont have the AIM (assembly instruction manual) already, time to buy it. That will help you thru all these little quirks it has the wiring diagrams in there too

The thing that is puzzling me is that I can touch the orange (hot) wire with a test lite. I leaned it over and it touched the housing of relay and started blowing high. The main thing I needed to know was IN THE HIGH POSITION, what wires should be 12 volts. Have I confused everyone yet? HE HE!
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post #7 of 16 (permalink) Old Jun 14th, 07, 03:41 AM
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Re: 1969 AC Blower Motor Problem! HELP!

The 12 gauge orange wire from the fuse holder should be hot all the time, it is the feed to the blower motor. With the switch in high the smaller 18 gauge orange wire should also be hot (from the fan switch). And if the relay is picked, the 12 gauge purple wire (power out of relay to fan motor) will also have 12V on it. Note the purple wire will have power on it with the fan switch in any position except OFF since it is commoned up on the output terminal of the blower motor resistor.

Mark Canning
1969 Indy Pace Car
350/300HP RPO Z11

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post #8 of 16 (permalink) Old Jun 14th, 07, 06:54 AM Thread Starter
 
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Re: 1969 AC Blower Motor Problem! HELP!

Mark! Thank you! You have helped tremendously!!!!! You have answered everything for me, but I am still stuck on this one question and I am hoping you can help!

The purple has light voltage on all, but for some reason when put on high it has NO volts! Do you have any suggestions on why this is? I think this would help in finding out the problem here, so I guess this is the Question of the Day!

I also got the tab post and I appreciate it. I thought I was right in thinking what you said, but I guess I needed to "reassure" myself! Thanks again and please let me know what you think about the purple voltage!

Keri

Last edited by Trickie636; Jun 14th, 07 at 06:54 AM. Reason: spelling
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post #9 of 16 (permalink) Old Jun 14th, 07, 09:12 AM
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Mark
 
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Re: 1969 AC Blower Motor Problem! HELP!

the purple wire has voltage on it all the time (except with the fan switch in off) because it connects to the common output terminal of the blower motor resistor before it runs over to the blower motor. It doesn't have an power to it in high because when you put the switch in the dash to high power no longer goes to the blower motor resistor from the dash switch (lever actually) and instead power goes to the smaller orange wire at the high speed relay. So if you don't have any voltage on the small orange wire at the relay with the fan switch in high, then you have a problem with the fan switch. If you have power on the small orange wire in high, but none at the purple terminal of the blower motor resistor (or at the relay) then you have a problem with the relay itself.

Mark Canning
1969 Indy Pace Car
350/300HP RPO Z11

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post #10 of 16 (permalink) Old Jun 14th, 07, 02:59 PM Thread Starter
 
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Re: 1969 AC Blower Motor Problem! HELP!

Ok, I will definitely check it out again when I get home! Man, seriously, I greatly appreciate all your help! As said before I have been "brain storming" for about a month over this!

It is so weird though, because I just bought a brand new, different high end brand relay and switched them out again for the second time and it is still doing the same!
GEEZ! CARS!
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post #11 of 16 (permalink) Old Jun 14th, 07, 03:01 PM Thread Starter
 
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Re: 1969 AC Blower Motor Problem! HELP!

Forgot to mention, that after I switched the relays out, once again, there was little to NOT volts! I will keep you updated after I look at it tonight, again, thanks!

Keri
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post #12 of 16 (permalink) Old Jun 14th, 07, 04:38 PM
 
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Re: 1969 AC Blower Motor Problem! HELP!

Where did you get the switch? I went thru 3 before I got one that worked on high. The first two came fron two different vendors and had no writing on them, The third came from one of the same two vendors, but had the name INDAK on it. This switch fixed the problem.
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post #13 of 16 (permalink) Old Jun 14th, 07, 07:31 PM Thread Starter
 
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Re: 1969 AC Blower Motor Problem! HELP!

I purchased the first switch from Rick's and the second through O'Reilly's!! I don't know, the only thing I do know is I am getting aggravated! I have never heard of INDAK.
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post #14 of 16 (permalink) Old Jun 14th, 07, 07:37 PM
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Re: 1969 AC Blower Motor Problem! HELP!

that relay is very particular to this year camaro. I went thru 3 of them before I got the right one... be sure to double check the tabs and numbers on them. There are similar relays for other chev cars that look the same but tabs are different.

Click..is Jim..former owner of a 69RS-LM1 350/255 - 700r
"There will come a time when you believe everything is finished,
That will be the beginning." Louis L'Amour
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post #15 of 16 (permalink) Old Jun 15th, 07, 07:46 PM Thread Starter
 
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Re: 1969 AC Blower Motor Problem! HELP!

I want to thank all of you for your help! I finally fixed it!!!!! After purchasing 3rd relay today, made by Standard Automotive Products, Part # RY-11, installing it and trying it out....IT WORKED, IT FREAKING WORKED! I can't believe that this was the issue! It amazes me how all relays are different and the third on finally worked! So, anyone out there with this issue, please keep trying! I wouldn't have ever figured it out without you all and again I appreciate it!!!

You guys are the best!
Keri
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