No hazards or turn signal issue - 1989 K5

[Clark75K5]

They seemed to work fine before yesterday. I checked the 15a fuse labeled "turn & BU" and for 12 volts at the terminal, and all good. Fuse is brand new and good. I then checked for power at the flasher relay, 12v. Same with the hazard flasher, it has voltage. Swapped out flashers for brand new unit and same result. Headlights and tail lights all work fine, no other electrical issues.

In other news I put Alcan springs in the front, and did the 63" rear spring swap. Fox shocks in the front, reservoir style Edelbrock rear shocks. With the redhead steering gear this thing steers and drives like a dream, probably as good or better than my 2005 2500HD.

 

[Joel Wilson]

They seemed to work fine before yesterday. I checked the 15a fuse labeled "turn & BU" and for 12 volts at the terminal, and all good. Fuse is brand new and good. I then checked for power at the flasher relay, 12v. Same with the hazard flasher, it has voltage. Swapped out flashers for brand new unit and same result. Headlights and tail lights all work fine, no other electrical issues.

In other news I put Alcan springs in the front, and did the 63" rear spring swap. Fox shocks in the front, reservoir style Edelbrock rear shocks. With the redhead steering gear this thing steers and drives like a dream, probably as good or better than my 2005 2500HD.

I doubt it but did you pinch a wire during the spring swap? Next thing I would check would be light bulbs but that would most likely only be 1 corner that didnt work. Easy check though. Only things left and they aren't that fun are the turn signal cam or that bunch of wires on top of the steering column. I had to redo those and it was not fun.
Joel
Norcal

 

[6872xtc]

Is there any problem with the turn signal switch? I believe that it should be next in line for power flow in the circuits for both the signals and the hazards.

 

[ktmoutfront]

I would start at the plug on the column for the blinkers. Is it tight? Check power in. If power is there, but not out, it is the cam causing the issues. But usually just part of it goes away.

 

[Capt Ron]

Brake lights working? They also run thru the column/ts switch. Tilt steering? Try moving it back and forth with the flashers on.

 

[Clark75K5]

Brake lights working? They also run thru the column/ts switch. Tilt steering? Try moving it back and forth with the flashers on.

It is tilt. I think the main purpose of a tilt column is to make it harder to rebuild. I haven't checked the brake lights since the TS quit so will check that too.
Will try the other suggestions - thank you.
I don't think a wire was pinched during the spring swap, as they just recently quit.

 

[Clark75K5]

UPDATE I got these working a little while ago. Took out the driver side HVAC duct and looked at the wiring. Saw the turn signal switch connector was loose, and pressed it back together. I think by forcing that big plastic duct in and out so many times recently I'm sure it wiggled that connector loose.

I also put a better column in this so may not have hooked it back all the way up to start with.