turn signal wont flash - Steel Soldiers::Military Vehicles Supersite

deathschariot · 07-21-2010, 15:53

Ok I've searched for a few days on here trying to see what my problem might be but I cant seem to find anything. My logic might be off. Anyway I just bought this 86 blazer from the sheriffs dept.(they told me it was ex military). They sold it to me because they could not get the lights to work at all. I got it home and did a little research found out that the "service lights" switch just had to be up, now all the lights come on just fine except the turn signal wont flash to the left or right it will come on but its just a steady light no flash. I noticed the flashers were not in the fuse box, so I went and purchased what napa told me I needed with no luck. The indication light works for the left side but not the right. Figured that is a ground problem because the right indicator does come on with the hazards but the lights still wont flash.

Have I just completely over looked something? or Is there a thread I missed?

any help would be greatly appreciated....

deathschariot

Barrman · 07-21-2010, 16:47

What county are you in? Look in the link at the top of the page that says resources. Find your way to the technical manuals. The -20 manual for the CUCV walks you through several hundred pages of diagnostics. Check all the bulbs in the blinker system for working. GM vehicles used to not flash if one was burned out.

niferous · 07-21-2010, 16:58

If you tried a new flasher and it didn't work try replacing the bulbs like Barrman said. I'm on the West Side of Houston if you need any help. Also what year did you ask for when you purchased the flashers? I'm pretty certain they didn't change from '84 to '86 but if they did and you got one for an '86 they probably won't work. All the CUCVs were built to '84 specs regardless of what year they were manufactured in.

deathschariot · 07-21-2010, 17:55

For some reason the resources link is not working for me and I live in Angelina county. Napa gave me a 12v flasher (for an 86) is that right? Is it supposed to be a 24v like the system? and if the lights all light up would I still try replacing them?

Thanks for the help

niferous · 07-21-2010, 18:07

I would just go online and check to see if they are the same. Just search for one for an 84 and then for an 86. Make sure the part numbers are the same. I'm betting they are but just to be safe.

What you really want to do is get some lectra clean and a steel bruch and clean the connections. As long as you have the bulbs out I would replace them. No telling how old they are and as long as you have them out they are cheap so might as well replace them.

deathschariot · 07-21-2010, 18:30

Alright I will check the numbers and clean all the bulb connections. I will get back to yall and let ya know if its good to go.

rlwm211 · 07-21-2010, 18:34

The light system is 12 volt so the 24/12 volt issue is a non-Issue.

It would appear that you have a short to ground on your turn signal system. When the flasher circuit encounters a short, the flasher stays on, or off depending on the type of flasher. Being stuck is the problem and the side without the indicator is probably the one with a short.

Check and see if the previous owners have cobbled a trailer light plug onto the truck.
I have chased down a lot of electrical problems in these chevys and the turn signal wiring is a likely culprit if there is one on your truck.

The CUCV manuals have full schematics and are a great resource to have for your CUCV.

Here is a link to the correct TM for the cucv and your diagram is on page 965. Right click the link and select "save as" and save a copy onto your computer.

http://old.steelsoldiers.com/index.p...id=file&pid=10

RL

burbn10 · 07-21-2010, 19:09

Check your bulb sockets on the passenger side. They run them through an area that has some sharp sheet metal. Mine rubbed through over there and did similar things. I also had a bad socket on the front righthand turn signal/marker light. Good luck!

K9Vic · 07-22-2010, 03:51

I hope that the sheriff department sold it to you a year after they got it from Texas Facilities Commission, or they violated GSA regulations selling you surplus military equipment. Not your fault, but they have to wait a year before they can sell federal surplus property. Did you get a blue Texas title, or a SF97?

Anyways, it is pretty funny that all it was is the "Service lights" switch that they did not have up to activate the lights. Maybe they should have called the rep at TFC to see what may have been the problem.

niferous · 07-22-2010, 10:08

Or just asked one of the guys in their department that was in the Army. I'm sure there are a few.