Ford F150 series, late 90's into the 2000's. my vehicle is a 2000 F150 4 door, extended cab, 4.6 Triton V8. When the tilt wheel feature is operated, the turn signals and emergency flashers cease to operate, or operate incorrectly. On other F150's I am aware of, with the same problem, the problem eventually results in total lack of function of turn signals and emergency flasher, regardless of position of tilt wheel. Some private owners have taken it on themselves to open up the steering column and typically found "green goo" on the switch contacts, and sometimes loose wires, which evidently are the root of the problem. When the "green goo" is cleaned off the contacts, the signalls and flashers operate properly. Stories sometimes relate very poor service from Ford dealer mechanics in being able to diagnose and repair the problem.

- Mckinney, TX, USA