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2000 ford ranger 4 wheel drive has poor gas mileage

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There are many things that may cause poor fuel economy in any vehicles............ Check to see if there is a CEL light on or check PCM for any codes or history trouble codes. Lack of engine maint. is usually the cause. Dirty fuel system, excessive carbon build up in combustion chambers and intake system, additional weight added to vehicle, dragging brakes, binding drive train, aftermarket add ons like larger wheels or tires, cheap gas with more ethanol added, ECT sensor that is out of calibration or incorrect one installed, faulty MAF sensor, incorrect calibrations flashed/programmed to PCM, engine timing. I can keep just going on of what the probable causes that might be without seeing the vehicle. I highly recommend a certified technician plug into you computer and read the real time data from all sensors to determine what the cause could be. If the CAT converter is going bad, it can give post O2 sensors wrong input to PCM there for causing a change in fuel economy. Hope this gives you somewhat of a starting point with what you have posted.

Posted on Nov 20, 2014

Is there a question with details there
& something you need to know ?

Posted on Nov 20, 2014

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Posted on Jan 02, 2017

jrod1125420
  • 161 Answers

SOURCE: 4 wheel drive

there is a way to do that.....all you have to do is go get the manual locking hubs and switch it over...not that hard....did it to a early 90s f150....pretty easy.

Posted on Sep 30, 2008

  • 899 Answers

SOURCE: 1991 ford ranger not getting any spark

probably the coil , but have your alternator checked first

Posted on Oct 07, 2008

  • 17 Answers

SOURCE: 1993 FORD RANGER 4 WHEEL DRIVE

there is an actuator on the back of the transfer case that likes to fail odds are this is where your problem is. check power and ground here and if you have both replace the actuator

Posted on Dec 01, 2008

  • 225 Answers

SOURCE: need vacuum diagram for 4-wheel drive

the 4x4 don't use vacuum. the front is auto lock when the transfer is engauged with the button. if the light don't which when pressed into 4hi or 4low. the motor on the transfer case maybe hung up. they have to be used at least 4 times a year not to go bad. the motor is on the back side of the transfer case. best of luck.

Posted on Aug 07, 2009

  • 1 Answer

SOURCE: Poor gas mileage 2000 S10 4.3L 4WD

I disagree with changing the MAF sensor. I had the same problem for about 4 years until today on my 2000 s10 4.3 4wd 125K. It runs like new, and all i did was paid 6 bucks for a can of mass air flow sensor cleaner from auto zone. Try this!! it was awesome the results

Posted on Jun 24, 2010

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