2001 Ford Explorer Acceleration at high altitudes

AIREDALES88

MEMBER
2001 FORD EXPLORER

Engine Performance problem
2001 Ford Explorer Front Wheel Drive Automatic

Hi. I have a 2001 Ford Explorer Sport Trac. I've noticed that whenever I'm at fairly high altitudes that my truck starts having trouble getting over 40MPH. I have to basically push the gas pedal all the way down to get to a decent speed at which I can avoid getting run over on freeways. I know that this isn't good for my truck, but sometimes it's my only option at the current time.
The only answer I've been able to find is that my truck is so adjusted to the altitude where I live that it's unable to, has problems with, adjusting to the change.
Do you know what's wrong?

3 Replies

JACOBANDNICKOLAS

MECHANIC
109,755 POSTS

Have the MAP sensor. Also, has the check engine light come on?

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Wednesday, September 1st, 2010 AT 11:12 AM

AIREDALES88

MEMBER
2 POSTS

No it hasn't, and I honestly have no idea what a MAP sensor is :(
Anything past oil changing and replacing a tire, I know basically nothing of cars.

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Thursday, September 2nd, 2010 AT 2:17 AM

JACOBANDNICKOLAS

MECHANIC
109,755 POSTS

MAP is short for Manifold Absolute Pressure sensor. The manifold absolute pressure sensor provides instantaneous manifold pressure information. The data is used to calculate air density and determine the engine's air mass flow rate, which in turn determines the required fuel metering for optimum combustion and operation.

Just a note, I ment to say MAF sensor which is a Mass Air Flow sensor. It does basically the same thing. It is connected to the air intake system. Here is a picture: