Skip the auto shop - Our mechanics make house calls

Q: Truck is idling poorly

asked by on

Truck idles rough now. When stoping try to surge forward surges in reverse also put in neutral runs better but not correct. Auto zone code reader said to clean maf sensor I did and was careful not to break wires, but still runs same. Took -battery side off for 30 minutes this did not help either. Do I need new maf sensor ? 2 years ago mechanic said it was coil packs changed not much better now worse.

A: The problem with auto parts stores' cod...

The problem with auto parts stores' code scanners is that they don't accurately download most ancillary error codes, or the technician completing the scan is not trained on how to effectively complete this task. Usually idle issues are caused by the idle control valve or fuel injectors, throttle body components that are dirty and need to be cleaned. Before you spend any more money on parts or chasing a diagnosis, you should have a professional mechanic, such as one from YourMechanic, diagnose what is causing your engine to idle rough so they can recommend the correct repairs.

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

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!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: toyot vitz 1.0

Hi there. Based on your question, it seems like you may have a low or rough idle when stopped in "D" or using the power window. There are a couple of components that could be the cause of your concern;...

Q: It runs and shuts off and I have to keep accelerating for it to remain on

Hello, thanks for writing in about your 2003 Jeep Liberty. Without additional detail as to the symptoms, this may be something that a qualified professional mechanic may need to inspect in order to properly diagnose. I would recommend having an...

Q: Misfire on cylinder four

The number four cylinder would need to be checked for the misfire to see if it needs plugs, coil, or coil boots to fix the issue. It could also be that the plug has come loose, or blew out of...

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...
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...
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...