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: 95 grand Marquis GS

You may have a blower motor with debris that got into it from under dash. It may be paper or other debris that are in the fan blades and will make a rattle slapping noise and can only be cleaned...

Q: Engine misfire

Hi. Misfires are common. Your vehicle in particular has coil packs with long wires that extend into a tube where the spark plug sits. Because of this, it is common for the wires to short out on the tubes causing...

Q: Van not starting.

There are a number of reasons why your van will crank and not start. You can have anything from a faulty fuel pump, a bad crank sensor, an internal engine failure or too many other things to count. A mechanic...

Related articles

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...
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...