Left Blinker works and then stops…

[hambo]

My right blinker works fine all the time. However, my left blinker will blink maybe 4 or 5 times and then stop for maybe a minute or so while im at a stop light, and then it starts blinking again. When I turn the blinker off then on again while its not blinking, it doesnt start blinking again. Any idea why it works, then stops, then starts working again?

 

[Warthog]

Did you remember to check your blinker fluid during your last PMCS?

 

[Warthog]

Has it always done this? Just started? Any changes made lately?

 

[Takai13]

Bad ground? Or a corroded terminal perhaps?

 

[welldigger]

Do you have led's?

 

[Scottd9990]

Mine are goofy sometimes. I think its just a bad connection.

 

[61sleepercab]

Does right and left turn signals share the same flasher unit? If so, problem in wiring or turn switch. Can you jump power to turn signal circuit and bypass lever turn signal switch? If light works and stays on something wrong in turn signal hand switch. Those are my first tests that come to mind. Mark

 

[m1010plowboy]

Just asked the neighbor girl to check if mine were working. She says, yes no yes no yes no yes no.

 

[hambo]

It has done this off and on since I bought the truck last november. I do not have leds. When I turn on the left signal, when the button flashes, the signals work, when its not flashing, they don't work. When I was driving tonight I watched it more closely and it will flash and turn off then flash 2 or 3 times then turn off then flash 5 or 6 times next time it starts flashing again. Basically, the amount of time it randomly flashes varies

 

[welldigger]

You either have a bad ground or your flasher is going out. My flasher flashed intermittently before it finally died. Though it did it on both sides.

 

[hambo]

Okay I will check the ground. Would it just be the ground at the flasher unit or could it possible be the one at the tailight assembly?

 

[welldigger]

I would clean all of them. Make sure you have good star washers under all of the bolts.

Another thing to check is the wiring and sockets inside the light housing itself. You may have a loose bulb rattling around in there.

 

[hambo]

Awesome. Thanks. I'll take a look at all that stuff soon

 

[oddshot]

Another thing to check is the wiring and sockets inside the light housing itself. You may have a loose bulb rattling around in there.

Also check to see if you have a riveted connection that has come loose in the light housings. A while back my flashers started giving me the same type problems. I took my housing apart and found so many loose connections that I took ALL of the the light housings off the truck, drilled out ALL the rivets in them and put the connections back together with small bolts, nuts and flat washers. It took a little time, but I haven't had a problem with them since.

 

[rustystud]

I agree with the previous posts that you have a bad ground on that left circuit. If it was the flasher unit, both sides would act up. I have found in my years working on vehicles that 80% of electrical problems can be traced to bad grounds. I once had a 1992 Celebrity from my father that would just stop running. Then a few days later it would run just fine for months. I finally got the service manual and really dug into it. After months of going through that whole wiring system and ECM I found it had a bad ground through the main ECM unit ! I had to cut the grounds and solder in a designated ground to the battery from the ECM. After that it ran fine for years till I finally sold it.

 

[Jeepsinker]

How is the condition of the wire insulation going to the turn signal lever?

 

[Coffey1]

Have you topped off the blinker fluid.

 

[Coffey1]

My truck was doing same weid crap. What ended up being on my truck was the connection on the bottom of turn signal lever was loose.

 

[hambo]

The wire insulation is good condition im pretty sure. I'll double check when I get a chance to go work on the truck. Hopefully its just a bad ground like you guys are saying