kona0197

So I bought a 1990 Cutlass Ciera. When turning left the blinker works fine. However when turning right the light stays on and will not blink. What part needs replaced?

Big Blue 72

I's start by checking the flasher relay and the bulb. Otherwise there could be a wiring issue elsewhere.

kona0197

Flasher relay down in the circuit breakers? One for each side?

MDchanic

In a modern car or an older German car, the signal lights not blinking on one side only usually means you've got a light bulb out.

Fewer bulbs = less current = can't heat up the flasher enough to bend the bimetallic strip to open the circuit = lights stay on and don't blink.

Handy and simple warning mechanism.

- Eric

kona0197

No lights out - they all light up. But if I recall correctly the blinker lights have 2 bulbs inside right?

MDchanic

2 filaments, yes.

The dim one lights with the parking lights, the bright one with the signals or brakes.

If there is a ground problem, or if one bulb is screwed in wrong, you can get weird problems like this. When you turn on the signals, do both lights on that side glow bright, or is one dim? What happens if you step on the brake with the signals on or off?

- Eric

kona0197

I will check that as soon as I can. Anyone have a clue how to change these bulbs out?

kona0197

Turns out the rear blinker was dead. I replaced the bulb and all is well. Now how do I remove the stock radio? Is there a video for this?