In the old days if you had a bulb burn out the other light on that side would come on steady. On today's cars if you have a bulb burn out the other one blinks real fast.
When did they change this and why?
When did they change this and why?
Burned out blinker
- Thread starter Chris142
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I have no idea what the actual answer is. That said, isn't it what remains on THE BAD SIDE that blinks fast when either the front or rear bulb is out? It's been a couple years since I had one go, so my memory may be faded. . .
Make it annoying so that drivers would get it fixed or at least notice would be my guess.
I think the old thermal flashers wouldn't blink because there wasn't enough current flowing through it to warm it up enough to blink, so the signals stayed on steady. The new electronic flashers will blink faster to alert the driver a bulb is out while still providing some blinking action.
Originally Posted by dishdude
I think the old thermal flashers wouldn't blink because there wasn't enough current flowing through it to warm it up enough to blink, so the signals stayed on steady. The new electronic flashers will blink faster to alert the driver a bulb is out while still providing some blinking action.
This is the answer.
I think the old thermal flashers wouldn't blink because there wasn't enough current flowing through it to warm it up enough to blink, so the signals stayed on steady. The new electronic flashers will blink faster to alert the driver a bulb is out while still providing some blinking action.
This is the answer.
I may be delusional, but I can swear I've seen fast blinks since the eighties or early nineties.
Mid eighties for Japanese autos. Why, shrug's, IDK... I think its a good warning system.
Originally Posted by dishdude
I think the old thermal flashers wouldn't blink because there wasn't enough current flowing through it to warm it up enough to blink, so the signals stayed on steady. The new electronic flashers will blink faster to alert the driver a bulb is out while still providing some blinking action.
Thermal Flashers will slow down with age, Then the lost load will render it inoperable. A new Eaton/Bussmann No.575 will blink all day long on the bright side of a single 1157 bulb.
I think the old thermal flashers wouldn't blink because there wasn't enough current flowing through it to warm it up enough to blink, so the signals stayed on steady. The new electronic flashers will blink faster to alert the driver a bulb is out while still providing some blinking action.
Thermal Flashers will slow down with age, Then the lost load will render it inoperable. A new Eaton/Bussmann No.575 will blink all day long on the bright side of a single 1157 bulb.
There is a compliance rule that there must be visual warning of a bulb out....and this is it.
The old thermal flashers were calibrated for exactly two bulbs. Plugging a trailer in would make it blink fast. You needed to change to a "heavy duty" one which is heated by voltage instead of current. Being insensitive to current, that type would not warn you when a bulb is out though.
The "electronic" blinker, which seems to have first appeared on Japanese cars, is just much better.
The "electronic" blinker, which seems to have first appeared on Japanese cars, is just much better.
On both my 94 Bronco and my mom's 94 Explorer, the turn signal will just light up and not flash when you have a burned bulb.
Originally Posted by Chris142
On today's cars if you have a bulb burn out the other one blinks real fast.
On today's cars you get a message saying a bulb is burned out.
On today's cars if you have a bulb burn out the other one blinks real fast.
On today's cars you get a message saying a bulb is burned out.
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