Q: Q: Engine running rough

asked by on

The ABS light comes on while driving, and the engine is running rough.

Hello! The running rough symptom on your particular vehicle is commonly caused by a clogged or faulty VCT (Variable Control Timing) solenoid. The solenoid uses oil pressure to determine if the timing needs to be adjusted. The oil is filtered through the sensor by a screen and the screen becomes clogged overtime which hinders the sensor from getting a proper reading. The sensor then adjust the timing in unnecessary ways which will cause the engine to run rough.

If the sensor is determined not to be a fault then the rough running could be caused by a leaking vacuum line or aged spark plugs. The ABS (Anti-lock Brake System) light will be accompanied by a numeric code. I suggest that a technician retrieve the code from the ABS module because the code will help pinpoint the ABS issue. I recommend that the brake system is inspected by a certified mechanic. It is always best to have the brake system serviced by a brake ASE (Automotive Service Excellence) certified technician, such as one from YourMechanic.

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. Q: Engine running rough

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: Q: Fuel pressure

There are a number of things that may cause low fuel pressure such as a weak fuel pump, clogged fuel lines, clogged fuel filter or a bad fuel pressure regulator. This can happen when the pump itself is not working...

Q: I am going to attempt to change the wheel bearing or hub asssmbly on my car.

This is a repair that is going to take require some specialty tools and techniques to complete correctly. It would be highly advisable to have a certified mechanic perform this or possibly assist you with the repairs, especially if the...

Q: Stuck brake caliper

Although it is possible for a collapsed (internally and thus "invisible") rubber brake line to cause a retraction failure, by far the most common scenario is the caliper is sticking. If the calipers have more than, say, 70,000 miles on...

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...
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...
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...