Skip the auto shop - Our mechanics make house calls

Q: The turn signal is working intermittently

asked by on

I have a 97 gmc sierra and every now and then I'll go to turn and get nothing the turn signal switch will go down for a left turn and stay there with no dash blinker lighting up, and no lights on the front or rear blinking but after the turn it clicks and flips back up. Is this a switch problem? I'll normally go out for 10 mins and then start working again when I select left or right the arrows on the dash blink slow and constantly when it's working.

My car has 235567 miles.
My car has a manual transmission.

A: The combination switch relies on the signal...

The combination switch relies on the signal/flasher relay for power. This relay controls both the signal lights and the hazard lights. The relay itself can be at fault even if the hazard lights are working properly. If the relay is functioning properly, the switch may be at fault. The combination switch can fail in a number of different ways. Sometimes the signals will not flash. Other times it can effect the headlights - low beams not functioning but high beams work. If the relay does not solve the issue, have a certified technician [inspect or replace the turn signal switch

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Blind Spot Detection/Cross Traffic Warning.

Hi there. Try removing the battery cables from the car battery and let the computer (ECM) reset. This will clear any messages on the vehicle. Then the computer will relearn the information from the mirror. If the mirror is working...

Q: Turn signal and brake light don't work

The switch in the steering column may be the cause, but a check of the bulbs should be done first, to see if a bulb is at fault. I recommend having a mechanic, like one from YourMechanic, inspect your turn...

Q: i keep rounding my lobes or brake my cams its the third one in two mounths and i cant figer it out

Hello. If you are continuously rounding off camshaft lobes to the point of replacement then that is a sign that there may be some sort of serious mechanical issue. If there is a problem with the engine's oil system, such...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...