andrew1969

Hi guys,

I have just replaced the incandescent bulbs with led bulbs in my instrument gauge cluster and now the car won't start. my battery is fine.

does anyone know why the led lights are causing my car not to start?

thanks for any help offered.

andrew

69mach1377

That's weird. The only led issue I've heard of is hyper flashing of turn signals, which requires resistors to be added.
Good luck.

fastbackford351

I can't imagine why led's would cause your no-start problem. I'd be more inclined to believe that something didn't get hooked back up correctly when you pulled the cluster out.

andrew1969

thanks guys.

I know it's weird. i plugged the 3 plugs behind the cluster back in and the leds lit up but the car would not start. i removed the bulbs and the car starts. very strange.

could the leds be drawing so much current that the car has not got enough power to turn the starter motor? even though leds are supposed to use less energy.

fastbackford351

Damn. That is a noodler.


Are you putting the incandescent bulbs back in to start it up or leaving them out altogether?

69mach1377

LEDs should be drawing less current IIRC. They might be altering the voltage seen down the line? Electricity is not my strong point...

andrew1969

i removed the instrument fuse in order to start the car.

i have no idea what the issue could be!

fastbackford351

If you replace the leds back with the incandescent bulbs do you get the same results?

Trying to eat the elephant one bite at a time here. If you put the incandescent bulbs back in and have the same results then the problem isn't with the LED's.

andrew1969

with the old bulbs back in, it starts fine...

very puzzled.

fastbackford351

Now take the bulbs out altogether and see what happens.