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Previous Thread Next Thread Print Thread Rate Thread Page 1 of 2 1 2 EGR valve stuck? #769077 12/02/06 05:08 AM Joined: Jul 2006 Posts: 139 VanillaTHUNDA OP Wheeler Is the 22RE supposed to rev up when you tap the EGR valve? Re: EGR valve stuck? [Re: VanillaTHUNDA] #769078 12/02/06 06:03 AM Joined: Jan 2000 Posts: 12,153 N. California. USA 4Crawler Web Wheeler If the EGR is sticking open, then tapping on it will smooth out the otherwise rough idle. r.c.brown@ieee.org TruckEditor@tlca.org Project: 4Crawler 4Crawler OffRoad - 4x4Wire discount code Re: EGR valve stuck? [Re: 4Crawler] #769079 12/02/06 08:59 AM Joined: Jul 2006 Posts: 139 VanillaTHUNDA OP Wheeler My idle is a little rough, but the valve is new. If the engine RPM increases when I tap on it with a ratchet, do you think it could be stuck open? Re: EGR valve stuck? [Re: VanillaTHUNDA] #769080 12/02/06 09:18 AM Joined: Jul 2002 Posts: 1,674 Placerville, CA stock87 Body Damage is Cool Quote My idle is a little rough, but the valve is new. If the engine RPM increases when I tap on it with a ratchet, do you think it could be stuck open? Sure the vacuum lines are routed correctly? Sounds like it's getting vacuum when it shouldn't (if it's new and working right). My Truck: 1987 XtraCab DLX 22R 4WD 5 Speed Manual -------------------- "Speed has never killed anyone. Suddenly becoming stationary, that's what gets you." -Jeremy Clarkson Re: EGR valve stuck? [Re: stock87] #769081 12/02/06 07:55 PM Joined: Jul 2006 Posts: 139 VanillaTHUNDA OP Wheeler Quote Sure the vacuum lines are routed correctly? Sounds like it's getting vacuum when it shouldn't (if it's new and working right). Well, if I apply direct manifold vacuum to it it kills the engine. I BELIEVE the lines are routed directly, I ran across a problem with some discrepancies between the various manual sources (FSM, Chilton, ALLDATA, etc) on how they're supposed to be routed when I put the valve in so it's a possibility. I'll either take a picture or make a diagram of what I have and we'll see if it's right Re: EGR valve stuck? [Re: VanillaTHUNDA] #769082 12/03/06 08:23 AM Joined: Jul 2006 Posts: 139 VanillaTHUNDA OP Wheeler Nah, the vacuum lines are routed per the FSM. While at work today I took a look at a guy's 88 22RE and his setup was different. Is that normal? Re: EGR valve stuck? [Re: VanillaTHUNDA] #769083 12/04/06 07:44 AM Joined: Dec 2005 Posts: 297 St Louis T trythis Mudrunner You can have different vacuum from year to year, nothing major though. I would try replacing your vacuum hoses, they are cheap. If they are clogged with oil, no vacuum. Worn out, they can collapse. Your egr vavle runs through the intake plenum and exits right in front of the throttle body. If that tube is clogged, it is just like having a clogged egr. Last edited by trythis; 12/04/06 07:46 AM. Sold Truck: 89 DLX extra cab 4x4 22re Automatic/ New truck 97 T100 4x4 auto Sr5 Re: EGR valve stuck? [Re: trythis] #769084 12/04/06 10:02 AM Joined: Jul 2006 Posts: 139 VanillaTHUNDA OP Wheeler Vacuum lines are new (less than 5000 miles). I might remove the plenum and clean the tube out, though. Is it actually cast into the plenum itself? Re: EGR valve stuck? [Re: VanillaTHUNDA] #769085 12/04/06 09:12 PM Joined: Apr 2004 Posts: 2,010 Virginia Beach, VA 87Toy4x4 Body Damage is Cool i seriously doubt your egr is clogged if youre getting those symptoms, so i wouldnt worry about cleaning it. i think it has to do w/ your efi system, one of the sensors or something. 87 22R PU, 2? body lift, 33? BFG muds, 4.88's, F&R Lock-Rights, Rancho Shocks, EB's Street RV Head w/ 268 Cam, LCE Header, 2" to 2 1/4" exhaust, Flowmaster 50 series, Magnaflow high flow cat, complete Herculined SR5 interior, V6 BB, MC, and calipers. Re: EGR valve stuck? [Re: VanillaTHUNDA] #769086 12/05/06 05:25 AM Joined: Dec 2005 Posts: 297 St Louis T trythis Mudrunner Yeah the tube is cast into the plenum. You can se where the egr pumps into the plenum just behind the intake. My PCV vavle had been clogged for years(?) PO never maintained anything. Egr was toast, tube almost solid, caused my throttle body flap stick. 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