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Old 01-21-2013, 03:48 PM   #1
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Default sputters only when sitting still

Ok so I have a 2001 4wd 4.6 triton it has just recently started sputtering when sitting still sounds kinda like its hittin a very low idle but its stayin right at approx. 700-1000rpm......the check engin light came on and the computer had both o2's ......which normally means mass air flow.......so I replaced it......light is gone and I let it idle for 10-15 to reset idle but its still sputtering........again it does this only when sitting still..........any ideas?

Replaced spark plugs and fuel filter......adding some dry gas today.......fingers crossed

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Old 01-23-2013, 10:54 PM   #2
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Mine was doing the same thing. Ended up being an intake leak on cylinder 5. Yay!
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Old 01-28-2013, 05:55 PM   #3
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ok so to date this is what i have done so far.....
fuel filter
spark plugs
EGR valve
EGR valve sensor
Mass Air Flow sensor
sea foam

still no improvment......need help folks.....please
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Old 01-28-2013, 06:37 PM   #4
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Mine did this a couple years ago, ended up being a vacuum leak
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Old 01-28-2013, 09:21 PM   #5
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I cannot be sure but this sounds like the Idle Control Valve is not working correctly. I would also check the less likely PCV valve as this is real cheap and easy to change (about $4 and 2 minutes to change).
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Old 01-29-2013, 08:42 AM   #6
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Quote:
Originally Posted by Frank_Ford View Post
I would also check the less likely PCV valve as this is real cheap and easy to change (about $4 and 2 minutes to change).
doing this as soon as i get off the net. im holding off on the vaccum leak for now only because i need to do some research on how to check that myself assuming it can be done. thanks guys ill let you know
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Old 01-30-2013, 06:13 PM   #7
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Ok so pcv valve......NOT 3.99.......try 21.98.......

Also not the issue
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Old 01-30-2013, 06:21 PM   #8
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Quote:
Originally Posted by ncpinball View Post
Ok so pcv valve......NOT 3.99.......try 21.98.......

Also not the issue
Where did you get a pcv valve that cost $21.98?
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Old 02-02-2013, 06:12 PM   #9
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This is the pcv valve on my truck it costs 21.98 correct part wrong problem......insert frowny face here......

sputters only when sitting still-forumrunner_20130202_170943.jpg
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Old 02-02-2013, 09:05 PM   #10
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That's rediculous I just replaced mine on an 02 5.4 and it was also like $4. Where did you buy that thing the stealership?
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