Q: Q: Reduced engine power

asked by on

My car engine performance is reduced what could be the cause

My car has 154016 miles.
My car has an automatic transmission.

Hello there, many common problems will cause your 2009 Buick Terraza to have a loss of engine power. The most common would be spark plugs, fuel pump, coil, fuel injectors, MAF sensor, vacuum leak, oxygen sensors, or a wiring harness fault. A qualified Technician such as one from YourMechanic will be able to diagnose your loss of power and make any repairs required for your vehicle to run normally again.

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. Q: Reduced engine power

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: I replace thermostat flush the radiator I replaced water pump fluids are good but the low coolant light is flashing

Hi There, It sounds like you may have a faulty coolant level sensor that may not be properly reading the coolant level. You may need to check the coolant level manually to be sure it is full. When removing the...

Q: ABS T/C error light

Hey there, thanks for writing in about your 2006 Buick Terraza. There is a possibility of the connector C305 under the drivers seat on the rear getting corrosion and damage from water getting on the connector. The connector is not...

Q: Cylinder doesn't have any compression 2020 Dodge RAM 1500

Hi - the loss of power, with low compression on one cylinder may be a blown headgasket or burned valve. Worn piston rings are more commonly an issue across all cylinders. I would recommend a power loss inspection performed by...

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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.