Ignition switch - Ford Mustang Forum
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post #1 of 12 (permalink) Old 05-30-2016 Thread Starter
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Ignition switch

After installing suspension components, i took the 70 mustang for a drive and now it's shutting off intemittently.
I connected a small parking light bulb to the coil wire and turned the key on and off a couple of times and I noticed the sometimes the bulb came on, sometimes it didn't.
Could this be the ignition switch or pink resistor wire?
Maybe both.
I found some ignition switches online, some for $29 all the way up to $279.
I was going to order the one I found at Orielly's auto parts.
Anyone order this part through them?
Was it any good?
Did the wires match up or do they need to be spliced.
I read somewhere that the replacement switches are not a direct match, different wire colors.
Thanks.


Last edited by Makedust; 05-30-2016 at 02:14 PM. Reason: Edit
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post #2 of 12 (permalink) Old 05-30-2016
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Of all the retailers, I've found that O's generally has the best parts. Best to have the local store order it, or order online and pick up at your local store, they typically have parts like that at a regional warehouse so there shouldn't be any shipping costs. Then if it doesn't fit, take it back and save shipping costs again.


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post #3 of 12 (permalink) Old 05-30-2016 Thread Starter
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Thanks.
I called them, they have it in stock at a store across town.
I'll pick it up tomorrow after work and install it if I'm not too worn out.
Still recouping from sore muscles, multiple mashed fingers, and scrapes, from the ball joint/strut rod replacement.
What an ordeal.
Not for the faint of heart, especially having to free up rusty bolts.
Hopefully I'll get this electrical issue beat.
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post #4 of 12 (permalink) Old 05-31-2016
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Ignition switch

Hello Makedust,
I am thinking what you are seeing is a switch for a 71.
I have had our 70 for a long long time and I don't know of
anyone that makes a switch for a 70.

If I recall they look the same but the wires on the 71 are shorter and may be different colors than yours.

I know that we are not supposed to link to other sites but this link
may be important to you.
I would rather see you fix this and I don't have time to write
all the stuff covered here.

70 ignition switch assembly - 1969-70 Technical Forum - 69stang.com and 1969stang.com The 1969 and 1970 Mustang Supersite

So to the moderators - I am sorry - -but this is important and I think
worthy of an exception

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post #5 of 12 (permalink) Old 05-31-2016 Thread Starter
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Thanks for the info, I don't think you will get into trouble for trying to help a mustang owner out.
I didn't think it would be as easy as "plug and play".
I know something was up when I could not find a switch specific to a 70.
Should I go with the 69 or 71 switch?
I guess I will have to break out the soldering iron and coke bottle reading glasses this weekend.
I will try not to burn my new upholstery.
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post #6 of 12 (permalink) Old 05-31-2016
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Quote:
Originally Posted by Makedust View Post
... having to free up rusty bolts...
Get yourself some PB Blaster while you're at O's. If that doesn't free up a rusted nut, heat it with one of these:

Shop BernzOmatic Trigger-Start 3-in-1 Micro Handheld Torch Head at Lowes.com

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post #7 of 12 (permalink) Old 06-01-2016
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Hello Makedust,

Glad you still have a sense of humor. It sure helps when working
on our dreaded passion LOL

I would go with the 71 switch - -please read this at the following link

70 Mustang Ignition Switch Assembly Page1 - Mustang Monthly Forums at Modified Mustangs & Fords Magazine

Read the short article - -it will help you
and of course - -unplug the switch and I don't think you will have to do any soldering. If you decide to solder - please do it outside the car LOL

Yadkin great advice and always great to see you on here helping

Be well - -both

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post #8 of 12 (permalink) Old 06-01-2016
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You might try cleaning the old switch. Use CRC QD Contact cleaner.

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post #9 of 12 (permalink) Old 06-05-2016 Thread Starter
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Thanks everyone for the replies.
I got the new ignition switch, it looked pretty much the same except for having a different connector and shorter wires.
It is a 71 switch as the 69 it completely different and in no way can be used without major modifications.
The colors were mostly the same and in the same spots on both connectors with the exception of the pink ignition wire which is red/green on the new switch.
I spiced them in to the old connector and it worked but I had some issues with it at first.
There was a constant voltage to the coil even with the key in the off position.
I looked at the switch and the yellow wire was kind of bare where it connects to the switch.
The yellow wire was touching the red/green (originally pink) ignition wire.
Once I isolated the yellow wire it was all good.
I found that there are no reproduction switches specific to 1970 Mustang but I found one in Mustangs Unlimited website that looks like it would be a perfect match.
It even has the correct pink ignition wire color.
Wish I would have seen that one, it would have been my first choice.
Look at pics, thanks.
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Ignition switch

Hello Makedust,
First - -congratulations on a great job

Second - - I am pretty certain that the picture in Mustangs Unlimited
is not he actual switch they stock. And trust me I like MU and have purchased a lot of parts from them. As far as I know - -no one repps
a switch for our 70.

THIRD - and I only mention this as a tip - -I would leave a little more
shrink tubing on the wires. Don't get me wrong - you are the person working on it and you can see things best - -but it does look as though there could be a little more tubing for a good water tight seal

Congratulations and well done - - I hope this will help others in the future. It is always great to hear the end results

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post #11 of 12 (permalink) Old 06-07-2016 Thread Starter
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I didn't think that it would be that easy to just order a new switch from MU.
Its probably a stock picture, not what they send you.
The 71 switch worked fine once spliced and installed.
I did wrap every wire individully with 3M electrical tape and then pulled the original plastic sleeve over it for more protection.
Thanks for the helpful info and websites.
Hopefully anyone who needs hands on information such as this will find this helpful.
Thanks again.
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That item for a '70 can be tough - the switchover to column switches from dash switches began with the Mavericks and some of them switched in the middle of production.

That being said, I have bought the O'Reilly switch and it is decent - seems to hold up OK (~4 years so far)

Some of the Autozone, Advance, etc. $!0 - $15 dollar starters are junk, and so are the solenoids -
The O'Reilly parts was more but better - they seem to be consistently better on these type parts - I think NAPA still has a decent solenoid for around $30. I went through 2 solenoids at AZ just to get a good one, and then it only lasted about 3 months. Pretty much waste of time and money.

Beri Fraley
Strong, Proud and Ugly

If you find yourself in a fair fight, you haven't been trained properly.
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