Skip the auto shop - Our mechanics make house calls

Q: Idles rough after warm up.

asked by on

Starts and runs fine. No warning lights are on. Ignition coil and spark plugs changed. Read that it might be the VVT solenoid but wanted to ask before I change it. Engine r56 n14

My car has 70000 miles.
My car has a manual transmission.

A: Hi there, thanks for writing in. In most si...

Hi there, thanks for writing in. In most situations when the variable valve timing solenoid is damaged or causing an ignition problem, it will trigger an OBD-II code and thus illuminate the check engine light. If the warning light is not coming on, it’s most likely mechanical in nature - such as because of a clogged or dirty throttle body, fuel injector, or air filter that might be causing this problem. I recommend cleaning those components or contacting one of our local mechanics who can come to your home or office to complete this service for you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 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

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: Engine knocking while running uphill, and while idling

It sounds like you may have spun a bearing in the engine on the crankshaft or piston rod bearing. Depending on the cause you may have: lost oil pressure going up the hill from the oil pump sucking up...

Q: clutch or gearbox ?????

Without more information, such as the symptoms you experienced, it is nearly impossible to determine the cause of your concern. Usually a clutch will wear out before the gearbox.

Q: What causes my car to jerk while accelerating?

Hi there: There are multiple reasons why your Mini Cooper is running rough and jerking. If your car jerks while the vehicle is in gear, the issues could be caused by a mass air flow sensor, O2 sensor or the...

Related articles

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...