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Old 01-09-2010, 01:27 PM   #1
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Default 1994 f150

Ok i have a 1994 f150 4.9l auto 2wd 137000 miles if you try to accelerate fast the motor stumbles or has a hesitation at take off but if you accelerate easy takes off just fine This is only at take off the truck runs fine going down the road any suggestion thanks
here are the codes
11
11
11
13
32
62
82
94

Last edited by tjic1979; 01-09-2010 at 03:53 PM. Reason: got engine codes
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Old 01-09-2010, 02:42 PM   #2
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You could throw parts at this problem all day & still not fix it. Do an Error Code Scan!
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Old 01-09-2010, 07:19 PM   #3
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How did you run the error code scan. Manually or w/ a code reader? Are those showing as active error codes, Active & in continuous memory, or only in continuous memory? 11's are system ok's. Did you get all those during the KOEO (key on engine off) test?

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Old 01-09-2010, 07:50 PM   #4
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I don't think those are right. '94 has 3 digit codes.
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Old 01-10-2010, 12:05 AM   #5
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Quote:
Originally Posted by tjic1979 View Post
Ok i have a 1994 f150 4.9l auto 2wd 137000 miles if you try to accelerate fast the motor stumbles or has a hesitation at take off but if you accelerate easy takes off just fine This is only at take off the truck runs fine going down the road any suggestion thanks
here are the codes
11
11
11
13
32
62
82
94
ran with code reader -koeo
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Old 01-10-2010, 06:20 AM   #6
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Your code reader must be pretty f*cked up, because '94 has 3 digit codes. Try it without the code reader.
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Old 01-10-2010, 02:22 PM   #7
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Quote:
Originally Posted by tjic1979 View Post
ran with code reader -koeo
So #13-94 were KOEO or KOER or both? Did you get any #10's (test separators? Did you do a KOER? Note: "JCMS" is right (as usual) about your truck being in 3 digit codes!
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Old 02-22-2010, 09:09 PM   #8
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Ok I just bought a 94 F150 last week and it did the same thing. Ran real good except it hesitated at take off for a split second then ran fine. The guy I bought it off off wasn't a maintence freak to put it lightly. Here's what I did and it hasn't hesitated since. Buy some of that motor flush in the silver can. Pour it in the motor when it's cold and run it for five minutes like the directions say. Drain your oil completley. Pull the plug and give it atleast thirty minutes to drain. Refill with a quart of motor additive and five quarts of hi milage oil. Put a heavy duty fram oil filter on it before you refill it. Put a heavy duty fram aircleaner on it. Not the paper kind but the heavy duty kind. Get some Lucas fuel additive that cleans your fuel system. Pour half in each tank with each tank half full. This fixed my problem with hesitation at dead stops. Not sure what it did but it fixed it. Hope this helps and would be worth trying before you spend big money on a mechanic.
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Old 02-22-2010, 10:21 PM   #9
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Quote:
Originally Posted by tjic1979 View Post
ran with code reader -koeo
I'd do the KOER test. The KOEO codes arn't active. You do sound like a candidate for Lucas ingector cleaner or Seafoam to detox the Combustion chambers also.
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