I just installed a Turn Signal Switch on my 1989 F250. The Turn Signals now work correctly. But my Lt Rear turn signal runs continually with the KEY ON and with the KEY OFF either the Lt Rear or Rt Front turn signal are activated. I believe the wiring is correct--according to the original.

I am thinking it is a defective unit--unless one of you have another thought. Thanks, in advance, for any thoughts. Philv

 

I'm about to do the same thing. Mine is 89 F350 with the tilt steering.

My hazards currently work, but neither front nor rear blinkers will turn on when activated.

So I'm going to watch this for more info.

 

TexanAmmo--I picked up a second switch and will install today-- there is a good U-tube on replacing the signal switch-with some good ideas.
Will advise the result of the second switch philv

 

Just did the same fix on my truck with no issue. Must be a faulty part or maybe you wired something wrong? Here are some pics of my job.

 

E7TZ-13341-A .. T/S Switch-Use without tilt wheel / Marked on paper tag looped onto the wires: E7TA-13B302-AA / Obsolete

Last MSRP: $94.42 - Dealer net cost: $56.65.

Applications: 1987/91 F150/350, Bronco & Econoline.

GREEN SALES CO. in Cincinnati OH has 23 = 800-543-4959.
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E7TZ-13341-B .. T/S Switch-Use with tilt wheel / Marked on paper tag looped onto the wires: E7TA-13B302-BA / Available from Ford.

MSRP: $133.82 / autonationfordwhitebearlake.com price: $88.32.

Applications: 1987/91 F150/350 & Bronco (Econoline is different).

The easiest way to replace these switches is to cut the colored wires off an inch above the connector. Then tape a long heavy piece of string to the wires and pull the switch from the column.

When installing the new switch, tape the wires together, tie the string to them and pull the string from the bottom of the column, the wires will feed down without binding up.

And...then you'll know which colored wire goes where.

 

Guys--thanks for the responses and inputs. It turned out to be a defective Signal Switch. I would not have bet $$ that the switch was the culprit. Be nice if it was a little easier to get to. A happy Ford owner--philv

 

Interesting and good to hear it was defective vs something else going awry.

That said, I wish I would have checked this thread again before I started working on my turn signal again. It would have saved me some pain.

Instead of cutting the harness on the switch and just running it through the small hole in the column, I took the column apart to keep the wires intact. That decision is a pain in my butt just for the headache that the tilt spring is to re-install.

 

Well, the good news is my turn signal is in fact fixed. I paid a mechanic friend to fix that + a few other things on the truck. The old signal switch was in fact toast. My friend fixed the ignition cylinder problem I was having (newest installed part by me had broken so was under warranty as a part) and covered this.

I now have signals & hazard lights functioning when & how they should.