Q: Engine runs rough and has a growl for a while then clears up after several miles.

asked by on

My 2002 Ford Focus SE. with the DOHC Zetec engine runs really rough and has loss of power. After running for a good while it will clear up and run smooth again, sometime after stopping and shutting off engine and restarting it.I had Autozone put on computer and there are no codes. I recently replaced PCV valve and tubing because hose was collapsing but this did not solve issue.

My car has 116000 miles.
My car has an automatic transmission.

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. Engine runs rough and has a growl for a while then clears up after several miles.

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: Dome lights and courtesy lights in back seat will not turn on.

Hi there. When multiple objects in a car will not work that are electrical, then there is a loose or broken ground wire to the circuits. Check all of the wiring in the cab to see what could be loose...

Q: What does the parking brake on chime mean?

The parking brake on chime sounds when you begin to operate the vehicle while the parking brake is engaged.

Q: Car issues. I need help to determine what's wrong with it.

First you will need to test compression on all 4 cylinders with all of the spark plugs out and the ignition system disabled. If the compression is good on all of the cylinders, then the valves in cylinder 2 are...

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...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...