Skip the auto shop - Our mechanics make house calls

Q: Every time I hit a bump, the radio flickers, the car jenks and the engine revs

asked by on

Radio flickers on and off, the car jerks to a stop and the engine revs

My car has 245000 miles.
My car has an automatic transmission.

A: Hi, thanks for writing in. I am certain tha...

Hi, thanks for writing in. I am certain that there is a loose connection somewhere. In your case I would begin with connecting a scanner and printing out a wiring diagram of what powers the radio. The radio is the simplest circuit to deal with and most likely what is affecting it is affecting everything else.

With the radio wiring diagram in front of me, I would be looking for the main power inputs and where they have other points in common with other systems. Once I find this I would locate it on the car, go to that spot and do some visual and meter testing. Possibly a test light could be useful. It is the most used electrical tool hands down.

If you should need further help, I recommend the following inspection: Electric problems

Hope this helps and best of luck!

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・Save up to 30%

Get a quote

What others are asking

Q: My car jerks when putting it into drive and sometimes has to be revved up high before going into gear

The issue you're describing is typically an indicator of an internal transmission component failure or loss of hydraulic pressure inside the transmission. The change of the motor and transmission mounts probably did not hurt the Honda's ability to accelerate correctly....

Q: Air conditioning has died

Hi, it sounds like it could be the pressure transducer or a leak in your A/C system.  If the transducer goes bad then it will cause the A/C not to engage. If there is a leak in the A/C system,...

Q: The AC/heat blower fan - 1997 Dodge Avenger

Hey there. The most common failure where the fan only blows on high is the blower motor resistor. It is possible the blower motor switch is the culprit, and it can be replaced separate of the control module. Diagnosing...

Related articles

How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.