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  #1  
Old 01-31-2012, 12:29 PM
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Default Idle Problem

I have a 2001 ranger and whenever i start it up it idles up to high. I have replaced idle air control valve. Could it be the mass air flow sensor? If not any suggestions?
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2001 Ford Ranger
regular cab, 2.5L, stickshift
Custom full length console with 10" PG and 2 pioneers
bullet hole rims and aluminum runnin boards
thrush exhaust with 2.5 outlet duals
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  #2  
Old 01-31-2012, 12:33 PM
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Default Re: Idle Problem

it should go down if you let the truck warm up for 10 minutes
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  #3  
Old 01-31-2012, 12:35 PM
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Default Re: Idle Problem

It idled up pretty high. Every once in a while whenever i press in the clutch it runs wide open.
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2001 Ford Ranger
regular cab, 2.5L, stickshift
Custom full length console with 10" PG and 2 pioneers
bullet hole rims and aluminum runnin boards
thrush exhaust with 2.5 outlet duals
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  #4  
Old 01-31-2012, 12:39 PM
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Default Re: Idle Problem

hmm...idk
what do your plugs look like?
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  #5  
Old 01-31-2012, 12:42 PM
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Default Re: Idle Problem

I really dont know. I havn't got under the hood and realy looked. I had some people tell me it was probably the mass airflow. But when i unplug it the engine dyes, it doesnt idle up
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2001 Ford Ranger
regular cab, 2.5L, stickshift
Custom full length console with 10" PG and 2 pioneers
bullet hole rims and aluminum runnin boards
thrush exhaust with 2.5 outlet duals
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  #6  
Old 01-31-2012, 12:50 PM
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Default Re: Idle Problem

i would replace the sensor. look at your plugs too replacing them could help. did you check your filter housing?
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  #7  
Old 01-31-2012, 12:53 PM
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Default Re: Idle Problem

yea i checked to make sure it wasnt cracked and i didnt see anything. The mass airflow is about 100 bucks. i was checking around trying to get someones opinion on what it could be before replacing it. I will check the plugs i think it has 8 right?
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2001 Ford Ranger
regular cab, 2.5L, stickshift
Custom full length console with 10" PG and 2 pioneers
bullet hole rims and aluminum runnin boards
thrush exhaust with 2.5 outlet duals
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  #8  
Old 01-31-2012, 01:03 PM
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Default Re: Idle Problem

depends on how many cylinders you have. just go to an autozone and have them put your vehicle info in and they can tell you. if you buy plugs get bosch platinum +4 they dont need to be gapped. i just put new plugs in mine and it help with the gas milage by 10%. i would assume it would help with the idle. idk if the mass airflow sensor is a dealer only part,but if you could find one aftermarket with a good warranty i would get it. sounds like you have investigated everything. it sounds like the sensor could be faulty and messing with the computer. see what happens
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  #9  
Old 01-31-2012, 01:11 PM
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Default Re: Idle Problem

We have an oreillys and the MAF sensor was the aftermarket. I hope its the sparkplugs. if it is it will save me a lot. I also cleaned the MAF out hoping it will help and it didnt do much.
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2001 Ford Ranger
regular cab, 2.5L, stickshift
Custom full length console with 10" PG and 2 pioneers
bullet hole rims and aluminum runnin boards
thrush exhaust with 2.5 outlet duals

Last edited by rangerman1; 01-31-2012 at 01:12 PM. Reason: spelling
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  #10  
Old 01-31-2012, 01:18 PM
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Default

I would check it out good luck!
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  #11  
Old 02-02-2012, 04:14 AM
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Default Re: Idle Problem

plugs are good. Anyone think of any way to test the MAF before i have to buy one?
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2001 Ford Ranger
regular cab, 2.5L, stickshift
Custom full length console with 10" PG and 2 pioneers
bullet hole rims and aluminum runnin boards
thrush exhaust with 2.5 outlet duals
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  #12  
Old 02-02-2012, 05:57 AM
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Default Re: Idle Problem

Quote:
Originally Posted by rangerman1 View Post
plugs are good. Anyone think of any way to test the MAF before i have to buy one?
A lot of sensors can be or "ARE" checked for resistence and or voltage. (That's how the Tech's "do it"). The computer only points you in the direction of the fault,you still have to do a little investigating/testing.
These tests will condemn or approve whether or not they're (sensor devices) are doing their job or are any good.
Search around on the 'net...plenty of info and even video's showing "How To" for many of these sensors...

If your knowledge is lacking in doing this kinda work,either search out a good mechanic or "learn yourself"...ain't really that hard.....
A cheapie volt/ohm meter can be had for pennies on the dollar.
Goodluck.
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  #13  
Old 02-02-2012, 02:53 PM
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Default Re: Idle Problem

could be leaking air around the throttle body or base of the intake around the iac or egr the throttle pos. sensor could be bad or have bad wiring check them out and see what you come up with
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  #14  
Old 02-02-2012, 04:14 PM
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Default Re: Idle Problem

ok...i called myself checking the filter housing and and intake......ill chck again. what is the IAC and EGR?
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2001 Ford Ranger
regular cab, 2.5L, stickshift
Custom full length console with 10" PG and 2 pioneers
bullet hole rims and aluminum runnin boards
thrush exhaust with 2.5 outlet duals
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  #15  
Old 04-12-2012, 06:22 PM
97 Ranger 2.3
 
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Default Re: Idle Problem

Here is a link to test the MAF, I followed the easy instructions and save myself $$
http://easyautodiagnostics.com/ford_...sor_ford_1.php
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