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EGR Valve #765618 10/07/03 12:13 AM
Joined: Apr 2002 Posts: 36 North Dakota C codeman19_dup1 OP New CEG\'er
OP codeman19_dup1 New CEG\'er C Joined: Apr 2002 Posts: 36 North Dakota	Hey again, well i was dinking around on my car to see if I could find the vacuum leak. I hear a wistling, but I cant really tell where it is coming from. Anyways I was spraying some electrical cleaner around the EGr area and where the pcv vacuume tubes are. When it would hit something it would make the engine idel higher for a second. WEll I was spraying it on the EGr valve and it would idel higher, and then all of a sudden the car idel jumped around and then the car died with a grinding sound to be heard. So I was wondering if anyone thinks that my EGR may be causeing me to have a crappy idel once the car warms up. ------------------- '95 Contour ZETEC Tinted Windows(35%) door dings removed 16" Dubs! 2.25 pipe flowin to a magnaflow (soon to get CTA intake)

Re: EGR Valve #765619 10/07/03 01:57 AM
Joined: May 2002 Posts: 21,653 Albany, Georgia K Kremithefrog I have no life
Kremithefrog I have no life K Joined: May 2002 Posts: 21,653 Albany, Georgia	Hmm, I would think so. 98.5 SVT 91 Escort GT (almost sold) 96 ATX Zetec (i brake to watch you swerve) FS: SVT rear sway bar WTB: Very cheap beater CEG Dragon Run - October 13-15

Re: EGR Valve #765620 10/07/03 02:10 PM
Joined: Feb 2001 Posts: 750 Nashville, TN T tiv_dup1 Veteran CEG\'er
tiv_dup1 Veteran CEG\'er T Joined: Feb 2001 Posts: 750 Nashville, TN	The EGR valve is not supposed to be open on idle at all. If it is, you get crappy idle. To check it, leave the car idling then disconnect the EGR solenoid -> EGR valve rubber vacuum hose from the valve and apply vacuum on it (you can borrow a handy vac pump from autozone, or you can just plain suck on it a bit). With vacuum applied the valve should open and the engine stutter/stall. If there's no difference, then the valve is stuck. Through cleaning with intake cleaner might help, if not replace it. If the valve is OK (and your idle improves after disconnecting the EGR control hose) then either the solenoid (unlikely) is bad or the DFPE sensor is dead (frequent problem). In my experience 95% percent of idle problems are caused by vacuum leaks / unmetered air though. EGR system problems are usually come with a CEL. Tiv

Re: EGR Valve #765621 10/07/03 05:05 PM
Joined: May 2001 Posts: 1,631 CT B BBorges_dup1 Hard-core CEG'er
BBorges_dup1 Hard-core CEG'er B Joined: May 2001 Posts: 1,631 CT	Hey tiv, maybe you can help me: my sis car has a code; Insufficient EGR flow. I first tried the easiest possible: electrical clener on MAF, EGR connections, inside and out. It didn't work. Here is her engine (which, by the way, has the EGR components very well located.... I was surprised how easy it was to reach them). I checked for hose cuts but could not find any. What would you recommend next ???? p.s. IIRC the code was P0411 or similar. Anything is POSSIBLE... sowing the seeds of love"

Re: EGR Valve #765622 10/07/03 05:53 PM
Joined: Feb 2001 Posts: 750 Nashville, TN T tiv_dup1 Veteran CEG\'er
tiv_dup1 Veteran CEG\'er T Joined: Feb 2001 Posts: 750 Nashville, TN	the 'insufficient egr flow' is usually caused by a sticking valve. remove it and spray intake cleaner into all 3 openings liberally. If you had done it and didn't help, replace it. To verify, do the 'vacuum on the egr valve control hose while idling' test: the engine should nearly stall, if it doesn't your valve has stuck closed. I borrowed the handy vac pump from autozone and did the test in their parking lot in 2 minutes. The EGR valve should have 3 opening, 2 large ones (exhaust -> intake) and a small one (control). You can think of it as a vacuum operated transistor if your background is like mines Tiv

Re: EGR Valve #765623 10/07/03 06:01 PM
Joined: May 2001 Posts: 1,631 CT B BBorges_dup1 Hard-core CEG'er
BBorges_dup1 Hard-core CEG'er B Joined: May 2001 Posts: 1,631 CT	ME ?? I guess we are on the same track then !!! regarding the EGR... I'll do the cleaning before testing the vaccum because I do have a code for the EGR flow. Just confirming... the EGR valve is this one with ford numbering, correct ??? If so, which I think it is, I will have the same problem as I did on the Zetec: those connections are hard to unplug.. it is metal tubings. Check this picture, which shows the bottom of the EGR: Should I just work on it with a pair of pliers and clean all the IN/OUTs of it ??? thanks again, BB Anything is POSSIBLE... sowing the seeds of love"

Re: EGR Valve #765624 10/07/03 08:08 PM
Joined: Feb 2001 Posts: 750 Nashville, TN T tiv_dup1 Veteran CEG\'er
tiv_dup1 Veteran CEG\'er T Joined: Feb 2001 Posts: 750 Nashville, TN	Originally posted by BBorges: Just confirming... the EGR valve is this one with ford numbering, correct ??? Yes it is. The rectangular metal box next to it is the DFPE sensor. The EGR valve is bolted to the engine with a pair of 8 or 10mm metric bolts, and there's a gasket what you should replace if you remove it (get it from autozone/pepboys). The EGR tube underneath it should be unscrewed using a suitable wrench (22mm or 3/4" IIRC). Use some rust eater/liquid wrench on the large bolt. Soak the valve well in intake cleaner, you've got nothing to loose If the rubber hoses are hand to pull off, use some silicone spray and rub it into them, that'll make the rubber flexible again. Good luck, Tiv

Re: EGR Valve #765625 10/07/03 08:29 PM
Joined: May 2001 Posts: 1,631 CT B BBorges_dup1 Hard-core CEG'er
BBorges_dup1 Hard-core CEG'er B Joined: May 2001 Posts: 1,631 CT	Thanks tiv ! I have the whole saturday to play with the Sable... Anything is POSSIBLE... sowing the seeds of love"

Re: EGR Valve #765626 10/07/03 10:24 PM
Joined: Oct 2002 Posts: 2,408 R Rogerm60 Hard-core CEG'er
Rogerm60 Hard-core CEG'er R Joined: Oct 2002 Posts: 2,408	Originally posted by tiv: the 'insufficient egr flow' is usually caused by a sticking valve. remove it and spray intake cleaner into all 3 openings liberally. If you had done it and didn't help, replace it. EGR valves are much more dependable than they used to be. Check for sticking visually before replacing valve. Passages in the EGR tube, valve, and intake manifold distribution passages are prone to clogging. These will have to be cleaned out to restore EGR gas flow. Virtually every car will eventually suffer clogged passages at some point, a much lesser number will suffer inoperative EGR valves. Originally posted by tiv: The rectangular metal box next to it is the DFPE sensor. That is the DPFE (differential pressure feedback EGR) sensor. "Those who cannot remember the past are condemned to repeat it" -George Santayana

Re: EGR Valve #765627 10/08/03 02:07 AM
Joined: May 2001 Posts: 1,631 CT B BBorges_dup1 Hard-core CEG'er
BBorges_dup1 Hard-core CEG'er B Joined: May 2001 Posts: 1,631 CT	Originally posted by Rogerm60: Originally posted by tiv: the 'insufficient egr flow' is usually caused by a sticking valve. remove it and spray intake cleaner into all 3 openings liberally. If you had done it and didn't help, replace it. EGR valves are much more dependable than they used to be. Check for sticking visually before replacing valve. Passages in the EGR tube, valve, and intake manifold distribution passages are prone to clogging. These will have to be cleaned out to restore EGR gas flow. Virtually every car will eventually suffer clogged passages at some point, a much lesser number will suffer inoperative EGR valves. Originally posted by tiv: The rectangular metal box next to it is the DFPE sensor. That is the DPFE (differential pressure feedback EGR) sensor. Learning everyday !!!! Thanks Roger, BB Anything is POSSIBLE... sowing the seeds of love"

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