Blinkers working intermittently or not at all

[michaelkwhitworth]

I replaced the multi-function switch twice on 2004 Expedition. I took the first one back under warranty thinking/hoping I may have got a bad one. I replaced the relay as well even though the flashers worked. Still have the Problem. I'm at a total loss.

 

[stamp11127]

Welcome to the site.

Can you read and understand wiring diagrams, have a test light or multimeter and know how to use it?

 

[michaelkwhitworth]

I can get a test light and have a very basic level of understanding wiring diagrams.

 

[stamp11127]

Here are the diagrams for 2004.

 

[michaelkwhitworth]

So you think its a short somewhere?

 

[stamp11127]

Shorts (to ground) usually blow fuses, so not a short. You have an intermittent "open" in the circuit. Now you just need to find where it is located.

 

[JoeD]

Have you tried changing the tilt angle of the steering wheel? If I remember correctly, there were problems with a harness being a tad short.

When these were new the steering wheel would spring up with a lot of force, and thats about when ours began this intermittent problem.

Our 04 has this issue, we can go for a month and it doesnt happen, then it will show up. My findings are that it occurs more often when the cabin temperature gets hot.

Sorry for being vague, I only drive it once in while - its the wifes.

 

[michaelkwhitworth]

I checked the tilt on the steering wheel. That doesn't seem to be the problem. Unfortunately I'm not experienced enough with electrical to track down an open/short.

 

[JoeD]

Is your problem intermittent?

 

[1955moose]

He stated his blinkers working intermittently or not at all. Michael, try wiggling the wires at the multi-switch, and the relay. If you live in a climate where you get humidity or heavy rain, it's possible it's a dirty/rusty connection going to one of the plugs involving your signals. Also check the fuse connection for turn signal/ flasher. Mine is fuse 23 a 10 amp inside drivers fuse box. Check your owners book if it's same location. Your problem could be intermittent due to the connection could be reconnecting after going over a bump. Let us know what you find.


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