Skip the auto shop - Our mechanics make house calls

Q: buzz in dash at 70 mph

asked by on

In the last few weeks, my truck started making a buzzing sound in the dashboard at about 70 mph. Once you get up to 75 or 80 mph, it stops. It sounds like an electrical buzz from a relay, only much faster. What might cause that to happen?

A: Hi there. This is very common on this vehic...

Hi there. This is very common on this vehicle. It is usually one of the electric motors in the dashboard that move the gauges. It is more than likely the speedometer motor as it seems to be related to vehicle speed. The instrument panel will need to either be replaced or rebuilt. There can also be a bad ground connection under the dash causing electrical interference, but the noise would seem to come from the speakers then. If you are going to get this repaired, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose your speedometer issue and let you know what needs repair.

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

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: Electronic failures, servotronic malfunction warning on

Hi there. Servotronic is BMWs name for its electronic power steering system. This warning light indicates the onboard control module has detected a problem with the system and has stored related diagnostic trouble codes. The first step is to retrieve...

Q: Gear shifter not moving from park into gear.

There is a solenoid that prevents the shifter from coming out of park unless your foot is firmly placed on the brake pedal. It is likely that the solenoid has failed and is not able to be activated to let...

Q: Power steering problem

Hello. From what you are explaining it sounds like your power steering pump is failing. I usually start by checking the tightness of the power steering belt. If the belt is fine then I check the pressure coming from the...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...