Q: I have a 78' GMC c15 pickup and when i turn either left or right blinker the hazards cut on.

asked by on August 20, 2017

If i try to use my blinker either one, thw hazards appear to cut on. The front flash as if the hazards were activated but the rear works as a blinker. Ive replaced the turn signal switch and the turn signal flasher but it still does the same thing.

My car has 100000 miles.
My car has an automatic transmission.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

My car thinks the trunk is always open
This condition is likely caused by the door latch not recognizing that the door is closed. This could be due to mis-alignment of the door, a faulty latch, or a faulty striker. Another possible cause is the improper closing/latching of...
Battery dies out after a few days and everything checks out fine
Sounds like you may have a parasitic draw that is taking down the charge level on the battery. The vehicle has a process by which the computer in the vehicle are shutdown to prevent draining the battery. Sometimes a faulty...
Oil leak
The timing chain tensioner fix is a common issue with this vehicle. There are several possibilities as to where this leak may be coming from. Crank seal and valve cover gasket (https://www.yourmechanic.com/services/valve-cover-gasket-replacement) are two others I would recommend checking. I...
I have been trying to verify a tsb has been done on this car but the dealership is a hour away.
Your TSB (https://www.yourmechanic.com/article/how-to-use-a-technical-service-bulletin-by-parker-hill) is a product update and any Honda dealer should be able to verify if your vehicle had it performed by using your VIN. You should be able to contact Honda USA (http://automobiles.honda.com/information/customer-relations.aspx) in order to find out...
Codes say evap leak, can a car accident cause it?
Hey there. Depending on the impact of the hit to your van, this may have caused some damage to the EVAP system. If you have an air leak on the EVAP system, then the MAP sensor (https://www.yourmechanic.com/services/mass-airflow-sensor-replacement) will not be...
Brake lights stay on all the time.
Hi there. The most likely cause for the brake lights staying on is, a faulty brake light switch (https://www.yourmechanic.com/services/brake-light-switch-replacement). Another possibility, would be a short to power past the brake light switch (https://www.yourmechanic.com/services/electric-problems-inspection) and disconnecting the brake light switch would...
Oil light goes off and on.
This light will usually come on when one of two things are happening. Either the motor is in fact low on oil or the oil pressure sending unit (https://www.yourmechanic.com/services/oil-pressure-sensor-replacement) is not working properly and may be producing a faulty reading....
I just bought a 2006 Chrysler pacifica seems to have wiring issue and miles tripped over 100,000 miles.
For all of the electrical issues with your vehicle either there is a loose ground wire from the chassis to the frame or the ECM (computer) has malfunctioned and needs flashed or replaced. I recommend seeking out a professional, such...
issues after toyota repaired scon tc engine due to excess oil consumption test failure
The extended warranty (there was no recall) that Toyota has offered on your vehicle, in response to the excessive oil consumption issue, only includes the short block, consequently all cylinder head components are excluded. You should measure your oil consumption....

Related articles

Headlight Use Laws for All 50 States
Every state has different rules and regulations on headlight use. Headlight laws vary between states, so it's a good idea to familiarize yourself.
Symptoms of a Bad or Failing Courtesy Light Bulb
If your car's courtesy light, also known as the dome light, is dim, flickering, or not working at all, you may need to replace its bulb.
How Long Does a Reverse Light Bulb Last?
Your Your car is equipped with a wide range of lights, from the headlights to the taillights to the interior lights that help you see when getting in or out of the vehicle in the dark. This includes your reverse...