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sambo4456
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Jul 10, 2012, 2:29 PM
Post #1 of 34
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Rough Ideal
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working on a 03 Ford Explorer Sport Trac. when the vehicel is in park the motor is idling rough i am getting codes P0171, P0174, P2197,and P2195. But i have a feeling they r false codes i already changed out the map sensor and it is still idling rough can someone tell me what else i should look for fixing this problem
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 10, 2012, 2:51 PM
Post #2 of 34
(3674 views)
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There is no such thing as a false code, only codes that people inadvertently set by unplugging things with the key on.
What engine does this have?
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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sambo4456
User
Jul 10, 2012, 4:06 PM
Post #3 of 34
(3648 views)
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Re: Rough Ideal
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it has the 4.0 L V6
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 10, 2012, 4:24 PM
Post #4 of 34
(3642 views)
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These are all lean codes. 90% of the time when I see these codes on a Ford, it's due to a major vacuum leak. Listen for a hissing noise at idle and try to follow it to it's source. It's very common for the rubber tubes, elbow and connectors to suck a hole right through them.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Discretesignals
Ultimate Carjunky
/ Moderator
Jul 10, 2012, 4:38 PM
Post #5 of 34
(3636 views)
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The K and E motors are also bad about the upper intake gaskets leaking on those causing rough idle and lean codes. Smoke test would confirm.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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sambo4456
User
Jul 10, 2012, 4:54 PM
Post #6 of 34
(3628 views)
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Hey Jon i took throatle baod cleanr and sprayed around the intake and got a change in rpms when i did. how can i tell if its a two peace intake or a one peace intake
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sambo4456
User
Jul 10, 2012, 4:57 PM
Post #7 of 34
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I dont have no hissing noises but when i sprayed the intake i would get a change in my rpms. But i dont know if i have two peice intake or a one peice intake
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 10, 2012, 4:59 PM
Post #8 of 34
(3620 views)
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That indicates that you do have a vacuum leak. now you need to determine what it is. A smoke machine is the best way to find it.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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sambo4456
User
Jul 10, 2012, 5:04 PM
Post #9 of 34
(3612 views)
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o ok were can i get a smoke machine that u r talking about because im a do it yourself mechanic
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 10, 2012, 5:06 PM
Post #10 of 34
(3607 views)
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I don't think you're going to get your hands on one of them too easily. They cost $1200 and up.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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sambo4456
User
Jul 10, 2012, 5:07 PM
Post #11 of 34
(3603 views)
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ok thanks
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Discretesignals
Ultimate Carjunky
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Jul 10, 2012, 5:09 PM
Post #12 of 34
(3598 views)
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You can always do the Scotty Kilmer and blow cigar smoke into the intake...LOL
Sorry wrong pic... It's got one giant plastic plenum. The lower runners it sits on are part of the cylinder heads.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Jul 10, 2012, 5:13 PM)
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sambo4456
User
Jul 10, 2012, 5:10 PM
Post #13 of 34
(3595 views)
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your last message with photo of the intake wasnt the same style that is on this truck jon and for some reason it didnt keep the message for me but what i did see its not the same. the intake on this truck has throathle body on the front of the intake jon
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sambo4456
User
Jul 10, 2012, 5:11 PM
Post #14 of 34
(3593 views)
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lol good thing im a smoker then huh lol
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sambo4456
User
Jul 10, 2012, 5:14 PM
Post #15 of 34
(3590 views)
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yes that is what this one looks like jon with the red arrow what is it that u point at for the egr valve
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Discretesignals
Ultimate Carjunky
/ Moderator
Jul 10, 2012, 5:15 PM
Post #16 of 34
(3589 views)
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I don't know if the cigar trick would work on that. You could try and let us know. You have to block off the front of the throttle body. It might take a quite bit of smoke...probably enough to turn you green.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Jul 10, 2012, 5:15 PM)
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 10, 2012, 5:21 PM
Post #17 of 34
(3579 views)
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I don't usually promote this guy in any way because he is a lunitic and we don't allow links but I PM'd the link to this video to you.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Discretesignals
Ultimate Carjunky
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Jul 10, 2012, 5:33 PM
Post #18 of 34
(3573 views)
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I don't smoke, so I am curious if that would really work on this type of leak.
If it does, maybe HT will subscribe to Scotty's videos...LOL
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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sambo4456
User
Jul 10, 2012, 5:34 PM
Post #19 of 34
(3569 views)
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ok thanks
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sambo4456
User
Jul 10, 2012, 5:36 PM
Post #20 of 34
(3564 views)
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jon with the photo u sent me or can u tell me is that a 2 piece intake or not
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Discretesignals
Ultimate Carjunky
/ Moderator
Jul 10, 2012, 5:42 PM
Post #21 of 34
(3560 views)
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It's one piece. Made from garbage can lids.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Jul 10, 2012, 5:43 PM)
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sambo4456
User
Jul 10, 2012, 5:44 PM
Post #22 of 34
(3556 views)
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hanner the only thing is i dont have any hissing noises that indicates that i have a vacum leak someplace but when i srayed around the intake with clear i would get a change in my rpm then it would go back to running rough
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sambo4456
User
Jul 10, 2012, 5:46 PM
Post #23 of 34
(3551 views)
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ok Jon thanks for ur help guy no only if we can get my truck running the 94 dodge that jumped time and turned into a eletrical problem lol
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 10, 2012, 5:47 PM
Post #24 of 34
(3551 views)
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As I said, you have a leak. now you have to find it. Unless you sprayed that stuff directly into the throttle body opening, you hit a leak.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Discretesignals
Ultimate Carjunky
/ Moderator
Jul 10, 2012, 5:50 PM
Post #25 of 34
(3547 views)
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You can also spray water around with a spray bottle on stream setting. You'll actually see the water get sucked in. Plastic intake on those sounds like the engine has a vacuum leak because of the air rushing around inside even when there is no vacuum leak. It's hard to hear vacuum leaks on those unless it is a huge vacuum leak.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Jul 10, 2012, 5:52 PM)
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Please Help - Knock sound & engine fail
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