Q: When driving uphill the vehicle looses most of power,only goes 25 miles per hour,then shakes when restarting

asked by on

When driving uphill vehicle looses most of power,only going 25 miles per hour,then shakes,w hen restarting for a ML320 2001 Mercedes

My car has 170000 miles.
My car has an automatic transmission.

Lack of power and shaking can be caused by a number of components. Misfiring can reduce power and cause shakes. Misfires can be ignition related like from bad spark plugs or ignition coils. Also from sensors such as the crankshaft sensor, which tells the engine control unit when to fire each cylinder. It can also be fuel system related, such as a fuel injector that is not firing properly or not firing at all. Also, a failed catalytic converter can reduce engine power significantly.

Have a certified technician inspect the vehicle to locate the exact cause of the shaking and no power

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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!
  1. Home
  2. Questions
  3. When driving uphill the vehicle looses most of power,only goes 25 miles per hour,then shakes when restarting

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: My car wont start

Hello. If your diesel engine stopped running in extremely cold weather, then I would check the glow plugs. If the glow plugs are bad, the motor will have trouble starting, especially in cold weather. In regards to your brake system...

Q: No fuel pressure; vehicle cranks but doesn't start.

Hi, this comes up often. The most common cause of this is the fuel pump failing. I have also had the control computer fail as well as the fuel pump relay. A mechanic would start by checking for voltage at...

Q: No on answered my question already submitted and when you respond with "someone will get back to you" it closes out the question.

Hi Danielle. Thanks again for the inquiry. The platform you are using to contact us goes to us - the professional mechanics to answer repair and maintenance questions. We don't have access to previous customer files - which is why...

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...
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...