EGR System CEL code 335

RANGER812572

MEMBER
1994 FORD EXPLORER
170,000 MILES

The problems started recently, and the Explorer seemed like it was bogging down a bit. It was acting like a bad EGR valve. At the time, I didn't have the money to fix it, so I left it, and suffered with the annoying CHECK ENGINE light on. I checked the codes the other day, and got Insufficient EGR Flow detected. I have replaced the DPFE, the EGR Valve, and the rubber hoses that connect to the DPFE. I have verified that all the hoses are in good condition and connected. Could the EGR vacuum solenoid be my problem?

7 Replies

RASMATAZ

MECHANIC
75,992 POSTS

Check if its getting vacuum

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Thursday, March 22nd, 2012 AT 9:37 PM

RANGER812572

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52 POSTS

And if its not getting vacuum?

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Friday, March 23rd, 2012 AT 12:41 AM

RASMATAZ

MECHANIC
75,992 POSTS

It suppose to have vacuum if not check from the solenoid to the intake manifold

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Friday, March 23rd, 2012 AT 4:30 AM

RANGER812572

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52 POSTS

I have replaced the egr vacuum solenoid and reset the codes. It still comes up. I know its getting vaccum, because I pulled the vacuum plug off the egr and put my finger over it while holding the throttle at about 1500 rpm (a guess). I could feel it pulling. Any ideas?

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Saturday, March 24th, 2012 AT 1:57 AM

RASMATAZ