Question about Ford Cars & Trucks
The turn signals had to have been added, check to make sure you're using the correct bulbs I believe the number is 1157 also check the hazard switch part of the aftermarket turn signal switch to make sure it either works or is turned off. It the hazard switch is connected it has to have a separate flasher also the turn signal switch separates the front from the rear of the vehicle the most common colors for the rear turn signals is green goes to right rear and yellow goes to left rear.check to make sure all the light sockets have a good ground. I know this seems complicated but it's not. I hope this helps. Take care. If you have more questions for me use the comment section and it will show up in my email
Posted on Jul 29, 2019
Mike's answer is correct and you must make sure all the wires are going to where they should and separate flashers and good grounds and as Mike says a little bit of a pain but go slowly and you'll get there you can model any Ford lighting circuit that has all components to get it right and also make sure the brake light switch is correctly wired first before you go coconuts doing the rest good luck Stephen
Posted on Jul 29, 2019
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Posted on Jan 02, 2017
When this happens the problem is most likely the multi-funtion switch aka turn signal switch. Check to see if the 3rd brakelight comes on when the brake pedal is pushed. If so replace the MFS. The 3rd brakelight in late 80's fords bypasses the turnsignal switch.
Posted on Dec 29, 2008
Probably the turn signal switch assembly. This is a common problem with the older Fords. The switch is a self contained unit at a cost of about $100.00.
Posted on Feb 09, 2009
Two issues here, you will need to replace the flasher. this will correct the erratic turn signals.
Concerning the brake light. Make sure the bulbs are in working condition and, check the wiring harness for faults as well. if the bulbs and wires arr OK, replace the brake light switch.
You can test for proper current by pulling the brake light bulbs out the socket and, use the copper prongs inside the brake light socket for testing. use a volt meter and, hit the brake pedal and, see if the meter registers a current. if not, replace the wiring harness.
Posted on Jun 04, 2009
check fuse under hood, batery terminals coroded wire at harness if everything fails run a hot wire to rear brake line with an interuptor.
check the swich under the foot brake.
Posted on Sep 09, 2009
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