Q: Q: Loss of power

asked by on

My truck is losing power when going up hills and pulling heavy trailers. It also idles rough and jumps in rpm at cold start in the mornings and acts like it wants to die, also when trying to pass a car I hit the gas and it went to 4000 rpm and the truck was bogging out and losing power. Recently just changed the fuel filter still having the same issues

My car has 257000 miles.
My car has an automatic transmission.

Hi, thanks for writing in. I would start with checking things such as the O2 sensor and mass airflow sensor. You should have a check engine light on which should have registered some fault codes in the computer indicating parts that may have failed. If you would like help with having these inspections performed, consider having one of our expert automotive technicians come to your home or office to look at and diagnose these issues for you, and make any repairs as needed.

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. Q: Loss of 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: Car lost power and makes a really loud noise - 2001 Chevrolet Blazer

Hello. You may still want to have a diagnostic troubleshooting code scan performed on the vehicle. Not all issues will automatically trigger a warning light. However, there may be mechanical issues to blame for this. You will want to take...

Q: Why does my truck have gas pouring out near the tank when started up?

Good question. I will go through a few steps with you to try to save you a little money and hopefully find the problem. Get under your truck near the fuel tank. Look for the lines that are...

Q: Thought the caliper hose was collapsing; replaced hose. Within a week, the vehicle was good then wheels did not move freely. Was just the front right, now all wheels.

Hi there. Check all of the wheels with the vehicle jacked up and placed on jack stands. Turn the wheels by hand and see if there is any binding or sound from the brakes rubbing. If the brakes are rubbing,...

Related articles

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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.