Q: Windshield wiper clicks and engine revving heard on radio

asked by on

There are some electrical issues happening with my car.

  1. The radio: It has horrible reception. The stations fade in and out (both AM & FM). Also, there is interference on the speakers coming from the engine. For example, when the windshield wipers click and the engine revs, can hear those sounds in the radio. I checked the connections by removing the radio and everything seems fine.

  2. Random starting trouble: Sometimes, before the engine will start, I have to crank it 3-5 seconds, then turn off, then try again.

A friend suggested that I check the ground wire connections to see if any have rusted out. He said the starting problem and the noises that I hear on the radio could be because of that. The manual isn't very detailed on the wiring diagram and I'm not sure where to look. Could you please explain where I should look to find the ground wires?

Yes, corrosion on a ground terminal or splice point can cause various engine and electrical systems issues. Looking at the wiring diagrams I see nothing related between the entertainment and engine control systems that jump out at me as the cause. However, both of these systems are grounded to the chassis and a bad chassis ground could be the cause.

One way to check this would be to do a key on voltage drop test of the chassis to negative battery terminal. The voltage drop should be less than 0.1V. Anything higher than this reading would indicate resistance in the chassis ground system and all ground points should be checked for possible corrosion or looseness. You may want to enlist the help of a mechanic, such as one from YourMechanic, who will have the tools and expertise to diagnose your radio problem and starting issue.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Windshield wiper clicks and engine revving heard on radio

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: Spark plug not firing

HI there. If you're not getting spark to any of the plugs, you'll want to look at the ignition components that are "up stream". In your vehicle, the crankshaft position sensor sends a signal to the ignition module. The module...

Q: Q: Ticking noise in my engine.

A ticking noise sounds like a bad valve lash adjuster and is a common problem with these cars. I would have a technician inspect the noise from your engine.

Q: All of a sudden, all of my dashboard lights came on and loss power to my window and all gauges. The truck says it's in reveres the whole time.

Hello. The first thing to check of course is for blown fuses. Given the sudden nature of the failure, check for cut or damaged instrument panel wiring that might have shorted out as well, especially a ground wire. Instrument cluster...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
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...