Q: Engine shakes upon startup.

asked by on

When I start the car, the engine is shaky and loud.

I can be quite alarming to start your car and have the engine start loudly shaking. There are a number of reasons why your Ford Focus is experiencing these symptoms. I have seen a number of shaky engines due to bad engine mounts. Engine mounts keep the engine firmly in place and reduce the vibrations in the car for a more comfortable ride. Another reason for shaky engines are engine misfires. If you are misfiring then your Focus may be due for a tune up. I have also seen shaky loud engines being caused by bad timing belts. When a timing belt is brittle and worn out, it will jump tooth, meaning it literally will grab the next tooth on the belt zipper. A timing belt jumping a tooth will change the timing of the engine and it will not run correctly. For all of these possibilities, it is best to enlist the help of a certified mechanic to inspect the shaking and get your Focus back to running great during start up.

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. Engine shakes upon startup.

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: No acceleration past 30 mph, then 10 mph

Hello there, thank you for asking about your 1999 Chrysler Intrepid. The engine oil being overfull will not turn on the Check Engine Light. However, a transmission problem could and that's what your issue sounds like. The first step in...

Q: Car moves in 1st gear and reverse but won't move in drive

Hello, first thing to check of course is fluid level. If the fluid level is low, any number of weird symptoms can occur. Your symptoms sound like the valve body may be sticking from a bit of grit or leaking...

Q: Hard shake and car died, accelerator not working

Shaking or vibrating may be caused by many different things such as faulty spark plugs, poor fuel pressure or misfires. Other things such as a faulty idle air control valve may cause the engine idle to drop below the normal...

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...
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...
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.