[A3Tripod]

For the life of me, I can not find via all of the internetz and Googles, where the accessory delay relay is located?! I've got a 2002 F250 7.3L. Can someone please tell me where it is, and how to get to it?

 

[RT]

The relay us behind the radio. It's controlled by the instrument cluster. Is yours acting up?


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[A3Tripod]

The relay us behind the radio. It's controlled by the instrument cluster. Is yours acting up?


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Wow, behind the radio? That should be simple enough to get to - or is buried further down where i might have to remove the dash too :s?

My radio stays on when the engine is off and I open the door.

I am also having problems with my blower not working properly - its always on defrost regardless of selection, but i think that's a vacuum issue if I remember right.

 

[RT]

Oof. I lied to you. The accessory delay relay is in the junction box on your truck. See the picture below.

The vent issue is vacuum related.

 

[A3Tripod]

Oof. I lied to you. The accessory delay relay is in the junction box on your truck. See the picture below.

The vent issue is vacuum related.

View attachment 93242

I think that relay is different somehow. I already took the relay out that you're referring to and bought a new one, and it didn't fix the problem/make any difference. Taking out that relay, however, definitely keeps the radio off. Also, when i look at the delay relay part online, its a 5-pin connector, whereas the relay you've referenced is only 4-pin.

Here is the delay relay that i can't locate in the truck: http://www.rockauto.com/info/154/RY116photo%20primary.jpg

Here is the accessory relay found on the CJB : http://www.rockauto.com/info/154/RY961photo primary.jpg

 

[RT]

You did follow that line to the center row bottom, right? The signal to that relay comes from the instrument cluster.

http://circuitboardmedics.com/2002-2004-ford-super-duty-instrument-cluster-repair/


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[A3Tripod]

You did follow that line to the center row bottom, right? The signal to that relay comes from the instrument cluster.

2002 - 2004 Ford Super Duty Instrument Cluster Repair | CBM


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Are you suggesting that the instrument cluster is bad?
Also - I've just spent the last hour reading over the wiring diagram from Ford, and relay K126 is definitely supposed to be a 5-pin relay. Why mine is 4-pin, I have no clue, but I'm betting someone put in a multi-purpose relay at some point when the original went bad. Going to purchase a 5-pin relay tomorrow and see if it'll plug in.