Skip the auto shop - Our mechanics make house calls

Q: Car rattles when starting, and when slowing down

asked by on

My girlfriend's car rattles on 2 occasions: 1. From a cold start, the dashboard area vibrates/rattles a bit violently before smoothing out. 2. When making a sudden stop or slow down, the car rattles for a bit before smoothing out. Any ideas?

A: When a car rattles on start up, there is a ...

When a car rattles on start up, there is a possibility that it is an engine knock. An engine knock will sound like a tapping from the engine block. The more common causes of a rattle on start up are worn engine mounts. The engine mounts can make more noise on starting the vehicle, when gears are changed, or when slowing down or accelerating hard. I recommend having a certified technician, such as one from YourMechanic, inspect your car’s rattling issue before continuing to drive. Getting this checked sooner than later would be a good preventative step from potentially larger issues from occurring within the engine.

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: Clicking noise at lowspeed turns, vibration when stopping abruptly, mechanic said need axles & no grease left. how long do i have?

As for "how long you have", unfortunately you needed to replace them when they were mentioned. With no grease to protect and lubricate them, the clicking noise you hear is the joints basically grinding themselves apart. Is this potentially dangerous?...

Q: Stabilitrak System

Hi there. Unfortunately, this sounds like it's an ECU issue, most likely a software glitch that is causing the inconsistent operation of the ABS and Stabilitrak warning lights. It is possible however, that this is caused by a faulty wheel...

Q: intake control solenoid voltage

If the issue persists then it may be possible that the issue is with wiring or computer. Damaged wiring or a faulty computer may compromise power to the solenoid and affect its performance. Many automotive electronic circuits use 12 volts...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.