Engine loss of power

what year car< 1994 to 2022+ sorry can't guess 28 years of car evolution.
in what country.
what engine is there losing said power , non told.
so lacking all useful facts lets go generic, (gasoline only engines)
USA only 1996 and up.
1: transmission fails to up shift, scan it.
2: engine spark is bad, misfires power loss, time for a spark and all filters turn up? 100k mile tune up scheduled skipped?
3: fuel bad, fuel pressure too log or too high , lost power.
4: sensors on engine failing , SCAN IT. MAP or MAF.

4.0l Engine loss of power. Garage has no idea. - Ford Explorer and ...

www.explorerforum.com > ... > Elite Explorer 911!

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Get an ob2 code reader and read the codes!

When you say it loses power, do you mean electrical power or engine power ?
You would need to look at the fuse boxes for a loss of electrical power, and use a scanner or code reader to check the computer for trouble codes for a loss of engine power.

Click the link below to troubleshoot this problem: ---
Car loses power while acceleration? http://schematicsdiagram.blogspot.com/2011/12/car-loses-power-while-acceleration.html

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Loss of acceleration?

http://technoanswers.blogspot.in/2012/02/loss-of-acceleration.html

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Acceleration lag problem?

http://repairhelpcenter.blogspot.com/2012/01/acceleration-lag-problem.html

--------------
How exactly the Vehicles Accelerator Cable works?

http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-cable.html

-----------

How exactly Vehicles Accelerator Pump Diaphragm Works?

http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-pump.html

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accelerator pedal sensor?

http://technoanswers.blogspot.in/2012/02/2009-chevy-impala-accelerator-pedal.html

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stalls and bucks on Acceleration?

http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-stalls-and-bucks-on.html

---------
Engine accelerates when brake is applied?

http://technoanswers.blogspot.in/2012/02/engine-accelerates-when-brake-is.html

-----------

This will help.

Thanks.

Click the link below to troubleshoot this problem: ---
Car loses power while acceleration? http://schematicsdiagram.blogspot.com/2011/12/car-loses-power-while-acceleration.html

----------
Loss of acceleration?

http://technoanswers.blogspot.in/2012/02/loss-of-acceleration.html

-----------
Acceleration lag problem?

http://repairhelpcenter.blogspot.com/2012/01/acceleration-lag-problem.html

--------------
How exactly the Vehicles Accelerator Cable works?

http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-cable.html

-----------

How exactly Vehicles Accelerator Pump Diaphragm Works?

http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-pump.html

----------
accelerator pedal sensor?

http://technoanswers.blogspot.in/2012/02/2009-chevy-impala-accelerator-pedal.html

----------
stalls and bucks on Acceleration?

http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-stalls-and-bucks-on.html

---------
Engine accelerates when brake is applied?

http://technoanswers.blogspot.in/2012/02/engine-accelerates-when-brake-is.html

-----------

This will help.

Thanks.

the power loss light has nothing to do with the alternator, the power loss light is part of the on-board computer system it is the equivalent of the check engine light on newer cars it is on because one of the sensors is not working on the car.

this is how to retrieve the code that is turning on the light.

turn the key on ( do not crank the engine ) turn the key off, turn the key on, turn the key off, turn the key on. ( never crank the engine ) this all has to be done in les then 10 seconds so to re-cap key on, off,on,off, on.

the power loss light will start flashing. all codes are 2 digit, for example a code will look like this.

flash,flash, pause (about 1 second), flash, flash,flash this code would be a 23 , the first two flashes would be a 2 the pause is the separator the next 3 flashes are a 3 so the code is 23, i hope you under stand.

after you get the code let me know what it is and i will look it up for you....good luck

LOSING POWER WHEN RUNNING COULD BE LOOSE BATTERY CABLE.FAULTY ALTERNATOR.NOT CHARGING BATTERY.CHECK BATTERY VOLTAGE SHOULD BE 12.6 VOLTS.WITH ENGINE RUNNING ALTERNATOR POWER OUT PUT SHOULD BE 13.5 - 14.5 VOLTS WITH ENGINE RUNNING IF NOT ALTERNATOR BAD.CHECK ALTERNATOR BATTERY FEED WIRE CHECK ALTERNATOR VOLTAGE REGULATOR WIRES AND CHECK ALTERNATOR FUSE AND MAKE SURE DRIVE BELT NOT LOOSE.BESURE TURN OFF RADIO BEFORE REMOVING NEGATIVE BATTERY CABLE TO KEEP FROM LOSING RADIO CODE.

It should only be a slight loss of power. This is caused because the defroster also turns on the air conditioner which uses dry air mixed with the heater air to defrost the windshield.

ID BE LOOKING AT THE HEATER CORE FOR LEAKING. YOU MIGHT PRESSURE TEST IT FOR AN HR. YOU WILL MOST LIKELY FIND THE LEAK.:)