Q: Engine in my truck is running rough, maybe oil problem?

asked by on

Recently I have started hearing a knock in the engine of my 2008 Chevrolet Silverado. The truck is only at 50,000 miles so I didn’t expect to hear the engine run rough so soon. The truck goes through a lot of oil, but it usually runs fine after it gets more put in it. I replaced the oil when the knock started but it only lessened it, the knock is still present. Is this a bigger problem with the engine or should I try switching the kind of oil I am using?

Your problems are a common complaint voiced by other owners. You will need to have your engine checked for possible lifters that have collapsed and could damage the cam shaft in the engine. Some owners have changed oil types to a different synthetic brand and this has helped alleviate the conditions but did not fix problem. I would recommend contacting YourMechanic to get the noise verified and diagnosed to prevent possible damage or major engine failure. You said you use a lot of oil and have run low on oil before. You should check for possible piston rings causing this. Diagnosing the noise should be your top priority, and once the issue is identified, make the decision to overhaul or replace the engine with a remanufactured one. Proper diagnostics are the key to prevent engine damage.

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. Engine in my truck is running rough, maybe oil problem?

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 do I automatically calibrate the compass?

The automatic calibration of your car’s compass will take place during the normal course of driving. Unless you see the CAL Warning Light, then your compass has automatically been calibrated.

Q: DMTL and oil filter housing and pan gasket need fixing - what is essential to pass the inspection?

If the check engine light is on, or if there are any trouble codes on the ECU the car will not pass inspection in North Carolina. The DTML Pump is part of the evaporative emission control system. It's job is...

Q: 5.8 volt to fuel pump 1987 scottsdale

The voltage drop you are measuring is due to high resistance in the circuit. High resistance is caused by damaged wiring, corrosion, poor contacts and so forth. The way to resolve this is to trace the circuit (using the factory...

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...