OK, so I have had the check engine light on got it checked out and ended up replacing EGR valve and couple other things. When I got the truck back mechanic asked if I had gutted the cats because he said was getting too much flow now. What could be causing this?

 

i've got straight pipes no cats no muffler and mine doesn't throw codes.the only time it had an egr code was when the wrench slipped and broke the connector on the wire for it when i took the egr tube off to change the plugs.so there has got to be somethin wrong with the egr valve

 

Blower, duals and high-flow cats, no codes.

I'm not familiar with a "too much exhaust flow" code. Do you know what the code is?

 

No, I need to go get it pulled. The mechanic after replacing egr valve, solenoid and one other part said it's flowing too much now. It seemed out of place to me as well.

 

you could try cleanin it out and checkin the vacuum on the valve.and check the electrical connection as well.

 

I am getting an insuffiecient code. It'll go on for a few days the go off for a wk or so...

I hear the sensors go out ALOT in Fords. SO instead of paying the shop I want to do it myself.

Its easy as hell to do it anyways...

So should I replace it first or try cleaning it out with some carb cleaner?

Or should I pay the man to diagnose it, then fix it....


thx bro's....

 

Be sure to check the pcv valve and the vacumn line attatched to it. Mine was throwing a P0174 code for about 2 weeks, lean on bank 2. I was told that the problem was the EGR valve. All it ended up being was the vacumn hose to the pcv valve was cracked up inside the protective tubing that surrounds it. 3 dollar fix and its cured.

 

I'm getting a P0401 or P401 or whatever it is... Are these close?

Would it throw the same code..?

 

P0401= Insufficient EGR Flow

http://autorepair.about.com/cs/gener.../l/bl470g.htm\

Heres a link that might direct you a little. And some info I found on the subject.

The 1st and 6th most abundant codes are Ford P0401
and P0402. These codes are for exhaust gas
recirculation (EGR) insufficient flow detected or EGR
excessive flow detected. Ford’s system makes use of
a differential pressure feedback EGR (DPFE) sensor to
measure flow. This is a pressure transducer that
measures high and low pressure readings across an
orifice restriction in the EGR tube. With no EGR flow
the pressures are equal. When exhaust gas flows
through the tube there is a pressure difference. Ford
has recognized a problem with these DPFE sensors
and written a technical service bulletin (TSB) in
response. There is a redesigned sensor available.
These DTCs may also occur in some Mercury and
Lincoln models.

 

thanks I will copy and paste it to a word document and bring it to the Ford place and Autoshops... They claim the sensors never go out and to buy Egr vales first... Even thought they can be cleaned...

 

if I drive on it for now it should be fine huh?

At least until next month or something.

 

Sorry man , I forgot about this thread. I am not goin to say yeah it will be ok. Because I honestly dont know. And I wouldnt want to give you advise that damaged your engine. It honestly is most likely a simple minor problem. But I would get another opinion if I were you. If its under warrenty, let them fix whateer tehy want. If it isnt, then why go to a dealership. They make a living on taking people into replacing parts that are fine. Most are not really concered about your repeat business. I prefer non-corporate shops that really need your business, so they do as much as they can to be price competetive and make you happy the first time. Also check Auotzone. Have them pull the code and ask them what thier opinion is on it. Lots of good advise drifting around your local parts store. I will ask around to a few people I know and see what I can find out about that code.