Rear taillights get fast clicks?

Tiny
ED RANGER 64
  • MEMBER
  • 2005 FORD RANGER
  • 3.0L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 141,000 MILES
Hello,

My vehicle listed above started by having the fast right and fast left signal clicking faster when I placed the brake down. Went to WM and got syl bulbs 4157 for brake 3156 for reverse lights When turn on or engages for signal still get fast clicks and all lights are very dim ie: turn, reverse and brake 3rd light is normal I have not check fuses as of yet or gone in dash for turn signal relay FYI I do have an exposed pig tail on back of truck.
Monday, October 21st, 2024 AT 3:22 PM

11 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
It looks like you have the incorrect bulbs for the running and brake lights which can back feed into the system which will cause the issue you are having.

1. Rear running and brake light bulbs are typically 3157 dual filament bulbs.

2. Uses 3156 bulbs for the rear reverse (backup) lights.

Once the bulbs are correct you will probably have the same problem of them blinking fast. This is because the flasher module is going out, here is the location so you can change it out to help fix the problem. Check out the images (below). Please upload pictures or videos in your response of any problems so we can see what to help you with.
Image (Click to make bigger)
Thumb
Was this
answer
helpful?
Yes
No
Monday, October 21st, 2024 AT 5:49 PM
Tiny
ED RANGER 64
  • MEMBER
  • 6 POSTS
I will get the updated bulbs and let you know would you go with OEM signal relay?
Was this
answer
helpful?
Yes
No
Monday, October 21st, 2024 AT 6:24 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
If you can I would, but if an aftermarket works that would be okay as well.
Was this
answer
helpful?
Yes
No
Tuesday, October 22nd, 2024 AT 10:26 AM
Tiny
ED RANGER 64
  • MEMBER
  • 6 POSTS
Okay, placed correct bulbs in sockets Reverse does not come on turn signal, stop lights, parking light are filament thin. So, do I replace all of the sockets next and just work backwards or would you look for a bad ground? Do you think the relay has anything to do with this?
Was this
answer
helpful?
Yes
No
Wednesday, October 23rd, 2024 AT 4:42 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
Yes, I would check the ground for the system. here is a guide to help you and I have included the wiring diagrams, and I have marked the ground wire to test.

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Connect the test light to power and remove the bulbs before testing the black wires.
Images (Click to make bigger)
Thumb
Thumb
Thumb
Thumb
Was this
answer
helpful?
Yes
No
Wednesday, October 23rd, 2024 AT 10:42 AM
Tiny
ED RANGER 64
  • MEMBER
  • 6 POSTS
Hello, hope you had a nice holiday.
Back at it on Ranger.
Update replaced turn siginal relay nothing has updated 1. New relay
1 and 2 show bp depress
3 and 6 show light switch no bp drepressed
4 and 5 show high mount with bp and wo

Cut pig tail off have not wrap yet went under truck inspected up to grpound all looks good.
Have not tested ground with light as I only have cheap volt meter.
Thoughts Ed
Images (Click to make bigger)
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Was this
answer
helpful?
Yes
No
Thursday, December 26th, 2024 AT 1:04 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
Thanks for the images, is the blue bulb custom? If not, the bulb is bad. I would check the ground and then if that is okay replace the flasher module.

Please go over this guide as well:

https://www.2carpros.com/articles/turn-signals-blink-rapidly

Let me know :)
Was this
answer
helpful?
Yes
No
Friday, December 27th, 2024 AT 10:18 AM
Tiny
ED RANGER 64
  • MEMBER
  • 6 POSTS
Hello, the bulb is right out of a Sylvania package no am on these issues.
I have another observation.
Vehicle running brighter but not the best brake on with headlights and goes dark at brake bulbs.
Reverses does about the same. Do you think I should replace the sockets for all 4 or just keep with diagnosis?
Was this
answer
helpful?
Yes
No
Friday, December 27th, 2024 AT 10:29 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
The bulbs are supposed to be clear.
Was this
answer
helpful?
Yes
No
Friday, December 27th, 2024 AT 10:48 AM
Tiny
ED RANGER 64
  • MEMBER
  • 6 POSTS
No problem will go get them.
Was this
answer
helpful?
Yes
No
Friday, December 27th, 2024 AT 10:49 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
Okay, I think that should fix it.
Was this
answer
helpful?
Yes
No
Saturday, December 28th, 2024 AT 10:11 AM

Please login or register to post a reply.

Related Noise Click Content

VIEW MORE