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 |
Mine was doing the same thing. Ended up being an intake leak on cylinder 5. Yay!
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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 |
Mine did this a couple years ago, ended up being a vacuum leak
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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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Originally Posted by Frank_Ford
(Post 2379371)
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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Ok so pcv valve......NOT 3.99.......try 21.98.......
Also not the issue |
Originally Posted by ncpinball
(Post 2385155)
Ok so pcv valve......NOT 3.99.......try 21.98.......
Also not the issue |
1 Attachment(s)
This is the pcv valve on my truck it costs 21.98 correct part wrong problem......insert frowny face here......
Attachment 189470 |
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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Mines a baby just a 4.6 I got the part at NAPA but ill be taking it back tomarrow because it s not the problem ........the other end of the hose where it plugs into the intake has a hole in it ......when I cover it with my finger it runs perfect....when I eemove my finger it sputters and dies
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Ummm I just bought a Pcv valve for my 5.4 today at oreilys and it was $1.69. Is there a difference between the 4.6 and 5.4 Pcv valve?
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Originally Posted by ncpinball
(Post 2394101)
Mines a baby just a 4.6 I got the part at NAPA but ill be taking it back tomarrow because it s not the problem ........the other end of the hose where it plugs into the intake has a hole in it ......when I cover it with my finger it runs perfect....when I eemove my finger it sputters and dies
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Replaced hose....still throwin codes and now it jerks when I let off the gas
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