Seems I have no reverse lights for some reason.They were both working and no neither of them works.The other lights work ok just the reverse ones. I have checked the fuse and if I was told correctly it was under the dash in spot #38.Yellowish green 20 amp.It checked out ok. Is there maybe another fuse under the hood that I should look for? I do not have a manual as I just bought the truck from a guy and there was no manual with it. Thanks in advance for any help.

 

The next thing I would check would be the reverse switch which closes when you put the truck into reverse. It might be out of adjustment or has failed.

 

Are these the factory reverse lights?

 

Thanks Neal- is this switch accessible by the fuse panel or buried up in who knows where?

 

It's on the tranny

 

Bulla- yes these are the factory reverse lights in the rear tail light assemblies.Is there an adjustment on this switch and you say its on the transmission itself, vorrevt.Thanks again.Always nice to being able to see what youre going to back into!!!!!!!!!! LOL!

 

I think
It's an electric switch on the pass side toward the top. So have you checked for power at the rear?

 

I can't tell you on adjustment... usually there is. Here is what I would do on FLAT GROUND. Put key in, turn to run position (DO NOT START). Put E-brake on and w/o engine running put transmission into reverse. Then get under and check switch...see if you have 12vdc coming into the switch. If you do, then try the output side of the switch. If nothing then the switch is either bad OR out of adjustment. Take a jumper wire and bridge the switch and see if the back-up lights come on. Also, did you ohm out the fuse for the back up lights? I have seen fuses that visually looked good, but were in fact, open when tested using a DMM. More than once, too!

 

Thanks guys for the tips and help on this.Seems both bulbs were blown out even though the filaments still looked intact.I bought 2 new snap in bulbs and they both work fine now!

 

I'd be checking why both bulbs burned out at the same time...coincidence?

 

Or more likely, one burned out and wasn't noticed until the other went out, too.

Pop

 

Ahhhh you old guys are always thinking !

 

I just got the truck back last week from the bodyshop and thats when I noticed them not working.I went back today and was asking the Owner about the bulbs being both blown out.He said possibly one of his body guys did it accidentally when removing and installing the wiring harness near the trailer hitch when they were taking the tail lights out or putting them back in after painting the box.But whatever, they are both working now.

 

On the bulb issue, I have noticed at work a lot of the non-working bulbs we are replacing are not b/c of a burnt filament. They will not light. I beginning to think the connection at the bottom of the bulb inside is not very good anymore and coming apart.