Skip the auto shop - Our mechanics make house calls

Q: My car has a lack of power - 2001 Lincoln LS

asked by on

I have a 2001 Lincoln LS I just recently put Motorcraft spark plugs in my engine two weeks ago, but before I put new spark plugs in it was idling rough, lack of power, trouble accelerating wouldn't go past 50 miles per hour, bad fuel economy, also jerks when I put my car in reverse not the engine jerking but the whole car itself, and it's doing all of this still after new spark plugs have been put in I did not change the coil packs I can say that..... toke it to AutoZone last week & they read the check engine codes as cylinder 3 misfire and EGR valve failure...... also my car when it's in park or i say idling it has a very bad shake to it. Also when I put it in reverse it sounds like something's knocking in the engine but when I put it in Drive and drive the car runs normal afterwards. But that's all that's wrong with my car I believe so so if you can get back with me with your best answer I would appreciate it thank you very much.

My car has 147523 miles.
My car has an automatic transmission.

This may be a sign of a dirty or faulty mass air flow sensor. The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed with fuel prior to being injected into the motor. When this fails, it can cause an imbalanced air/fuel load to be supplied to the motor, which often results in the engine starving for air or fuel or, in some cases, over-fueling the motor. Over-fueling results in excess fuel being un-burnt and also creates a loss of power and poor fuel mileage.

This is what causes the hesitation or loss of power you describe, and can also cause the engine to struggle to idle for the same reason, and may also create a misfire due to lack of fuel (in some cases).

I would suggest having a professional mechanic, such as one from YourMechanic, come to your home to determine why the car is losing power and replace this sensor if needed.

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: Brakes not working

There are many reasons why brakes stop working. Low fluid level, leaking master cylinder, air in the lines, bad brake booster, etc. Since brakes are a safety concern, I suggest seeking out a professional to help you properly diagnose your...

Q: I feel a shimmy on the brake pedal a bit when I brake at high speeds. Does this mean the brakes should be changed?

Usually when the steering wheel shakes during braking, it is caused by a warped rotor or drum. It could also be that there is fluid leaking onto the brakes and it causes them to grab intermittently. A brake inspection will...

Q: My check power steering symbol is showing up on my Lexus 2012 RX 350 and the car wont move an inch.

Hello. It sounds like you either have a broken belt or a voltage loss in the vehicle. If the battery is failing or if the alternator is failing then this will occur. I would check these first by having them...

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...