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View single post by wh23g3g
 Posted: Sun Jul 21st, 2019 03:00 pm
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wh23g3g

 

Joined: Sun Mar 11th, 2018
Location: Georgia USA
Posts: 130
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I got the Motorcraft CX1740 egr valve. I decided to change the EGR line and the new valve today. Well the SKP egr line did not fit quite right. It all appeared to have the same bends as the original one, except there was a slight bend on the original one near the exhaust manifold so I could not install the new EGR tube at all. I fought with the new EGR tube for almost two hours trying to get it to line up so I could tighten the tube nuts but it just wouldn't work. So I cleaned out the original one as best I could. I saw some carb on the inside walls of the tube but nothing clogged. It took about 5 minutes to get the original tube back on, no fighting with it at all. I went ahead and installed the warranty EGR valve. I checked the "faulty" EGR valve when I had it off with a vacuum pump. You could see the diaphragm arm moving so it did work somewhat I guess. Maybe there is something else wrong. Any I drove about 10 miles after clearing the code of course the P0401 came right back on. I don't know what else to do. I didn't use cheap parts, I checked the vacuum hoses, I checked the DPFE hoses, now I've cleaned the EGR tube out, both sensors, and now a new EGR valve have been installed within a couple of weeks. I sprayed out behind the EGR valve too while it was off but I didn't feel or see any high buildup of carbon. I'm assuming the EGR Solenoid fuse wouldn't be blown or otherwise I would be getting other codes. I just know when I had it running and pumped the EGR valve with the vacuum pump the engine didn't change at all. It's suppose to almost stall. It didn't do anything at all. The DPFE Volts PID is within specs at all ranges. I'm trying to get a brand new Jeep so hopefully this will be the last repair. But I'd like to have it fixed so I can sell it instead of using it as a trade in because I won't get anything on trade. What else could I check?



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1998 Ford Ranger XLT 2.5 4R44E Automatic 4.10 non-limited slip, 1993 Ford Ranger XLT 2.3 M5 Manual, 3.45 non-limited slip