Q: Truck running rough over 55 MPH.

asked by on

I have over 140,000 miles on my truck. The Engine light is on and it starts running rough when driving over 55 MPH. I have never had a tune-up performed on it.

I would have a technician come scan the codes on the computer and perform a tune up as well. Your spark plugs are recommended to be replaced at 30,000 miles. I would also replace your fuel filter as well. They have been known to clog up damaging the fuel pump and restricting flow to the injectors.

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. Truck running rough over 55 MPH.

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: Check Engine Light - 200 Dodge Durango

When the Check Engine Light is illuminated and you’re able to download the P0601 OBD-II error code, it typically indicates that the internal control module within the ECU is either faulty or not receiving correct data from the transmission, ABS...

Q: Differential whining

The gears in a differential are helical gears. They normally don't make noise unless they are worn irregularly. Low fluid levels are usually the cause of the irregular wear. This will cause the spacing between the gears or backlash to...

Q: Car runs rough and shuts off - 1990 BMW 750iL

Without some additional symptoms, this is hard to say. If the car runs smoothly when warm, this would reflect a "cold start" problem with the engine. If the transmission shifts harshly either cold or hot, the transmission may need repair...

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...
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.