Skip the auto shop - Our mechanics make house calls

Q: Sluggishness and Breaks

asked by on

My car feels sluggish lately, what's causing this? is it fuel quality? My brakes feel fine but how do I tell if my brake pads need to be replaced?

My car has 150026 miles.
My car has an automatic transmission.

A: Hello, there is a variety of causes for the...

Hello, there is a variety of causes for the vehicle feeling sluggish. If there is a Check Engine Light on the dashboard and the vehicle than diagnosis with a scan tool will be required.

If no Check Engine Light is present then the most common cause would be spark plugs and wires. When the spark plugs get older the electrode wears down causing the spark to have to jump farther, this wear causes a lack of engine power and a possible engine misfire.

The spark plug wires with age start to break down due to the heat in the engine bay, this causes increased resistance in the wiring and a possible lack of power and misfire condition.

Other possible causes for the car being sluggish are, fuel issues, fuel filter, fuel pump, or dragging brakes. For the brake pads you can tell if they need replaced by performing a visual inspection. The wheel may need to removed to see both sides of the brake pads. You may be able to look through the wheel spokes and determine if the pads are bad. The brake pad material must be above 2mm. A qualified technician, like one from YourMechanic, will have no trouble performing any diagnostics and repairs required to get your vehicle back up to 100%. They can take care of your car’s sluggishness problem and brake issue.

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

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!

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: How can I get my crankshaft back into timing with my camshaft and exhaust pulley

Hi there. Unfortunately, we're not quite clear as to what you're asking with this inquiry. If you are completing major engine service like replacing the crankshaft pulley or timing chain, it's probably a good idea for you to purchase a...

Q: Car runs hot and antifreeze leaks

First we have to find out where the coolant is leaking. That could be the cause of the over-heating, or just another symptom. Engines that heat up and run hot very quickly is a common symptom of the head gasket...

Q: Brake Booster

Hi Laura, It sounds like you may have a bad brake booster. The reason the brakes work when the car is not running is that the vacuum The brake booster is a mechanism that uses vacuum pressure to take...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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.