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Help removing egr vavle - 1994 Cadillac DeVille

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4.6 2 10MM SCREWS / 4.9 A 1/2" OR 13MM DISTIBUTOR WRENCH
TO ACCESS 2 BOLTS

Posted on Dec 29, 2013

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I have a 99 Windstar 3.8L Keep getting DTC PO401 have replaced DPFE EGR Valve and EGR tube still keep getting Code PO401


Does the egr vavle open ? You will need to use a scanner to test the dpfe voltage when the egr valve is energized you should read around 3.5 4.00 volts. Also you could remove the vacume line from the egr valve and with the engine running you should see around 100 rpm drop in engine rpm at least this would indicate the egr valve is capable of flowing egr gases through the system to the cylinders.

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EGR CODE P0401,IF I APLLY VACUUM TO THE EGR VAVLE THE ENGINE STALLS.THIS TELLS ME THAT THE EGR VAVLE IS WORKING.SO WHAT NEXT


The mechanical components of the egr themselves may be fine, but the electrical circuit that moves the egr may be faulty. now if the egr valve uses vaccum to operate, then it may be sticking just enough to throw a code.

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1996 OLDSMOBILE CODE 1406 FOR 3100 ENGINE ?


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Feb 09, 2010 | 1996 Oldsmobile Cutlass Ciera

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EGR vavle


Go onto http://www.autozone.com/home.htm ,On the ' vehicle repair guide' enter your vehicle information and there's actually a link on there for "location".

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Egr vavle


The EGR valve is located right behind the multi port. ( the black plastic on top of the engine. it is kinda difficult to remove it if you have no experience with) I don't think is serviceable but some folks I know had told me that once removed, you can clean it with carburetor cleaner. the valve runs about 215 Dlls. at your local autoparts store.

Dec 08, 2008 | 2001 Suzuki Grand Vitara

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EGR Valve


real easy. remove the top of the airfilter, then pull the bottome piece out. the egr vavle is on the engine with that tube going into it. there are 4 small bolts, 2 8mm for the tube, and 2 10mm to the head. should take about 10- 15 mins to replace. make sure the engine is cool.

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