Our 2004 Ford Explorer recently developed the following behaviour. Using the left hand turn indicator position, we get a rapid blinking sound in the cabin - the front left blinker flashes double time but nothing lights up in the rear. I checked the light bulbs and all seems good (swapped left to the right side and it worked fine).

Is this the flasher module? Are there more than one in this unit? (one for left and right each)

Thanks in advance
JB

letmetellu

In every occasion that this has happened to me changing the bulb did the trick. So I would buy a new bulb, replace it and while doing so I would check to make sure that there is not corrosion on the contacts.

jbelicka23

... see next ... (sorry for the double response!

jbelicka23

Yup! ... well sort of. I changed the offending bulb with no change - left hand signal still not operational. But when I changed its righ-hand companion we had success! Corrosion was not spotted, but the plunking in a fresh bulb may have been all that was needed.

My parts guy suggested changing all four corners - sounded like a sales pitch to me. Then again, when I think of the number of times I've had to change the incandescents in my house with various bulbs going within days of each other, well, you get the picture.

As an aside my mechanic friend confirms on occassion having to change all four corners to resolve newer vehicle problems of the same type.

Thanks
JB