Turn signals (blinkers) not working replaced bulb and still not working?

Check for power and ground in the socket. It may have a bad one. If no power arriving at the socket, then you may have a bad turn signal switch. This guide can help fix it

https://www.2carpros.com/articles/turn-signals-not-working-blinker

Please run down this guide and report back.

That is the classic symptom of a broken ground wire on the left rear socket. You can verify that by observing the left bulb's operation will change when you remove the bulb on the right side. Most commonly doing that will result in the left bulb not turning on at all.

First check all fuses in the in car and under hood boxes, then you may need to test the multifunction switch on the column.
MULTIFUNCTION SWITCH Remove multifunction switch. See MULTIFUNCTION SWITCH under REMOVAL & INSTALLATION. Measure resistance between specified terminals while operating multifunction switch lever in specified positions. See MULTIFUNCTION SWITCH TESTING (EXPLORER & MOUNTAINEER) or MULTIFUNCTION SWITCH TESTING (EXPLORER SPORT & EXPLORER SPORT TRAC) table. See Fig. 5 or Fig. 6 . If resistance is not as specified, replace multifunction switch.

Removal:
MULTIFUNCTION SWITCH Removal & Installation Disconnect negative battery cable. Remove lock cylinder. See LOCK CYLINDER . Twist tilt lever handle counterclockwise and remove handle (if equipped). Remove upper and lower steering column covers. Remove multifunction switch retaining screws. Disconnect multifunction switch harness connectors and remove switch. To install, reverse removal procedure. WARNING: Deactivate air bag system before performing any service operation involving steering column components. See appropriate AIR BAG RESTRAINT SYSTEMS article. Do not apply electrical power to any component on steering column without first deactivating air bag system. Air bag may deploy.

LOCK CYLINDER Removal & Installation (Functional) Disconnect negative battery cable. Disable air bag system. See appropriate AIR BAG RESTRAINT SYSTEMS article.Turn ignition switch to RUN position. Insert a 1/8" drill bit or wire through access hole in lower steering column cover (below lock cylinder). See Fig. 7 . Press retaining pin inward and pull out lock cylinder. To install, lubricate lock cylinder. Turn lock cylinder to RUN position. Press retaining pin inward and insert lock cylinder into housing. To install, reverse removal procedure. WARNING: Deactivate air bag system before performing any service operation involving steering column components. See appropriate AIR BAG RESTRAINT SYSTEMS article. Do not apply electrical power to any component on steering column without first deactivating air bag system. Air bag may deploy.

Disable air bags by removing the negative battery cable and leave it disconnected for 5 minutes, then proceed and leave the cable off until you have reassembled the column.

Yes, it should be the same relay. Check all fuses and then look into it being the switch itself that it bad.

Take out your flasher relay and keep it warm over night, then when you go to use it, pop it in and see if they work.

check out this guide

https://www.2carpros.com/articles/turn-signals-not-working-blinker

if they work you need a new relay. sometimes they can get moisture in them and when it gets bellow freezing they freeze up causing the metal contacts inside not move.

To begin, read the guides below, they will help you figure this out

https://www.2carpros.com/articles/turn-signals-not-working-blinker

https://www.2carpros.com/articles/how-to-check-wiring

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

The wiring diagrams for your turn signals are attached below

Hello,

Here is a guide to help you test the wiring and the blinker wiring diagrams so you can see how the system works:

https://www.2carpros.com/articles/how-to-check-wiring

Check out the diagrams (below). Please let us know what happens.

Check fuses 10 and 21 in the I/P fuse block. Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

Check out this video and see if it helps...
http://www.youtube.com/watch?v=I2SUGIvYAWc