Q: Can a bad tensioner cause my vehicle to lose acceleration and turn off?

asked by on

I have recently changed my spark plugs, engine coils, alternator, fuel filter, and battery cables due to ongoing issue where I will be driving and the car will lose acceleration and shut off. The car drives perfectly fine for short periods of time. It doesn't overheat and my check engine light isn't on. I just noticed that my tensioner needs to be replaced. Will a bad tensioner cause my issue?

My car has 120000 miles.
My car has an automatic transmission.

Hi Brandon. Typically a damaged belt tensioner will not impact vehicle performance. It would cause the serpentine or drive belt to wear prematurely or to squeak - but not cause the acceleration issue. On your list of items replaced, I noticed that you didn’t list mass air flow sensor or have cleaned the fuel injectors. Quite often, those are the root causes of the type of symptom you are describing. If you’d like to have a professional mechanic come to your location and complete a car is slow to accelerate inspection, let us know and we’ll be happy to help.

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. Can a bad tensioner cause my vehicle to lose acceleration and turn off?

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 Lincoln MKZ Rear Left Lid Tail Light Tail Lamp , the brake light is out I need the part number to order

Hi Donald. Thanks for the question. Unfortunately, we typically don't look up parts by VIN number to supply you with a part number, as this is something that needs to be done by a dealership. I've forwarded your inquiry to...

Q: Losing power steering fluid

If the pressure line is leaking, it will need to be replaced. When the pressure within the line is very high and cannot be patched or spliced. I recommend having a trained technician, like one from YourMechanic, inspect your power...

Q: my clutch went out on my truck? i got the clutch fixed but now the truck will not start. what do you think is wrong??

Hello there, A few different things can cause the car to not start. The most common causes for no start is the battery, starter, neutral safety switch or the fuel pump. Given that it started before you performed repairs it...

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...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.