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  #1  
Old 01-27-2013, 06:44 PM
tempelman2 tempelman2 is offline
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Default Bad Acceleration
hey i have a 2000 ranger 4.0L with 240k kilometers on it. but it is on its second engine. unkown km but probably over 200k. im expriencing fairly bad acceleration. i did just change plugs to autolite and also ran sea foam through vaccum line and gas which did help a bit. im wondering if it is normal to have bad acc this late in its life or are there some things i can troubleshoot or clean to regain some valuable acceleration.
Also, i have engine problem code p0133 (o2 sensor circuit slow respose) could this affect it? any suggestions would help thanks!
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  #2  
Old 01-28-2013, 03:28 AM
Maritime Storm Maritime Storm is offline
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Default Re: Bad Acceleration
How old is the fuel filter? Replace both upstream O2 sensors, the right one has failed, the left will be just as old.
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2010 Ranger XL 2.3L 5 Spd 3.73:1 Bone Stock
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  #3  
Old 01-28-2013, 09:41 AM
DannMarr DannMarr is offline
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Default Re: Bad Acceleration
From personal experience, a bad coil or a vacuum leak can cause bad acceleration.
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2001 Ford Ranger with the flare sides. 4x4 with a 4.0 engine. The only thing I did so far is: F/R Brakes, rotors, drums, F/R shocks, tires, bed cap, cone filter, hanger/shackles, F/P wheel bearing, upper control arm, lower ball joint, filler neck, fuel filter and DPFE sensor, muffler, sway bar links and spark plugs!
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  #4  
Old 01-28-2013, 08:12 PM
tempelman2 tempelman2 is offline
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Default Re: Bad Acceleration
Quote:
Originally Posted by Maritime Storm View Post
How old is the fuel filter? Replace both upstream O2 sensors, the right one has failed, the left will be just as old.
not too sure probably seen a few kms. only owned to truck for 5000 km or so. ill try to change that soon!
also will new sensors get me better fule milage?
Last edited by tempelman2; 01-29-2013 at 12:40 PM.
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  #5  
Old 01-31-2013, 03:56 AM
Maritime Storm Maritime Storm is offline
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Default Re: Bad Acceleration
Yes, but don't expect miracles 18-20IMPG is about what these trucks average if driven easy.
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  #6  
Old 02-01-2013, 02:32 PM
tempelman2 tempelman2 is offline
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Default Re: Bad Acceleration
Quote:
Originally Posted by Maritime Storm View Post
Yes, but don't expect miracles 18-20IMPG is about what these trucks average if driven easy.
im getting 11 mpg mixed so anything would be nice aha
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