Skip the auto shop - Our mechanics make house calls

Q: Hesitation, stalling out

asked by on

The car starts hesitating when I attempt to increase its running speed, as if the fuel is lacking. It happens often while going uphill but I manage to make it run better by kicking into the next gear. The dash isn't showing the check engine light on. It would also stall out sometimes when I bring the car to a halt. Also, if I'm about to stop ot if I try to start it up on an incline, I noticed the fuel gets sloshed around and the car runs bad. It seems that it runs better if I put 89 octane. What could be wrong?

A: Hello. It sounds like the spark plugs are f...

Hello. It sounds like the spark plugs are fouled and the spark plug wires need to be replaced. It is possible that the fuel filter is clogged up and needs to be replaced as well. Have a certified technician, like one from YourMechanic, diagnose the stalling issue and assist you with the necessary 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: How would a failing TPS sensor affect how my car runs...?

Hey there. Since the throttle position sensor is responsible for relaying information to the ECM and has a hand in trimming fuel / air mixtures, ignition timing, and other critical functions that control the engine's operation, a failing TPS sensor...

Q: AC stops working when idling

It is possible that your compressor clutch is producing more drag than usual, causing the near stall at idle. When the engine RPM is raised, the belt rotates faster, forcing the compressor to spin. It is also possible that...

Q: Do all xtronic transmissions have a shudder when accelerating

The transmission shudder is very common of a problem but is not normal and the transmission control module may be in need of reprogramming as per a technical bulletin NTB15-014B dated 4/5/2016. This is a recent TSB and may not...

Related articles

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...
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...
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...