95 EGR PROBLEMS

1995 Ford Ranger

Tiny

j.stieg

April, 4, 2011 AT 10:07 PM


I am working on a 95 ford ranger and I got code P0401 (Exhaust Gas Recirculation Flow Insufficient Detected) checked vacuum going to the egr valve with the engine running and there was not any. I replaced the vacuum solenoid and still no change. There is power going to the vacuum solenoid with engine running. Got any ideas on how to troubleshoot?

FOUND 107 RELATED QUESTIONS

2 Answers

Tiny

caradiodoc

April, 4, 2011 AT 10:53 PM

You don't want any EGR at idle when you're standing in front of the truck. That would cause a severe misfire. I would sooner suspect the passages taking the exhaust to the cylinders are plugged with carbon.

Tiny

j.stieg

April, 5, 2011 AT 1:01 AM

Ok thanks, I forgot that it is closed at idle. I should do a road test next to see if it is responding and getting vacuum to actual EGR valve. I'm sure somethings plugged like you said. I will pull the tube off and and clean all passages.

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