Skip the auto shop - Our mechanics make house calls

Q: engine hesitation on elevation

asked by on

engine hesitation on elevation I've changed the intake manifold, got knew coils,

My car has 29000 miles.
My car has an automatic transmission.

Hi there. As the cars elevation changes, the mass air sensor changes input to the computer. If it is not giving the correct altitude data to the computer, then you would need to replace the mass air sensor. If readings are correct, then you may need to clean the injectors. If the problems worsens and/or you travel at varying elevations often, you may want to enlist the help of a certified technician to diagnose and repair the hesitation issue 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

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・Fair and transparent pricing

Get a quote

What others are asking

Q: Car will not move

You need to look under the drivers side of the dash to see if the shifter linkage in the steering column is moving the shift cable. The bolts that hold the bracket to the bottom of the shifter shaft come...

Q: Driver's side window not working

The most likely cause is a bad motor and regulator. The regulator's plastic rollers come apart from age, and cause the motor to wind the cable into it, bending or damaging the motor. I recommend having a mechanic, like one...

Q: car losing power and dieing with stuggle to restart

Common causes of engine stalling and rough idle include a faulty mass airflow sensor, faulty engine coolant temperature switch/sensor (typically at cold start only), worn spark plugs, wires or defective ignition coil(s), inadequate fuel delivery or pressure (clogged fuel filter,...

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...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.