jesse6

i have a lovely 2000 nissan frontier 4cylindr
which has been no problem 4 me.
this code came up says 404 egr flow malfunction
the local dealer wants to remove the intake manifold
to clean out the cabon?
has anyone heard of this?
quoted about 500 dollars 4 repair
truck seems to run fine nonetheless with 75000 miles on it

mcm4090

jesse6, take a look at this.
http://www.nissanhelp.com/Ownership/.../NTB01-064.htm

jerryp58

You may want to look at this post too...

http://www.nissanforums.com/showthre...hlight=seafoam

I used SeaFoam in my previous vehicle without any problems.

__________________

Jerry
2004 Frontier, King Cab, XE, 4x1, 4-cyl, 5-spd
My Frontier Page

jesse6

thank you, mcm is it?
a 2nd service dealer said somthing about a pipe
i was unsure where to locate the piece
i guess the next question is how to reset
check engine light.

azrocketman

Take a look at the web site below. It details the cleanout procedure. I performed this procedure on my 2001 4 cylinder and it cleared the check engine code I was seeing. The ports were almost completely blocked in 3 of the 4 cylinders. My truck had around 77000 miles at the time.

Having said that I think the dealer is ripping you off. The service bulletin indicates about 1.2 hours for the repair. Even wiith some dealer "overhead" this job should not run over 2.5 hours or maybe around 250 dollars. The job is not technically difficult but is is a literal pain because access to the ports is poor. You have to unbolt the throttle body and the EGR valve and push them out of the way to get access to the ports. I used some gun cleaning brushes (.22, .45) and Hoppes #9 to loosen the carbon and clean it from the port.

http://www.nissanhelp.com/Ownership/.../NTB04-044.htm

mcm4090

jesse6, first make sure it's not still under warranty. Most emission parts are covered till 80,000. If not inform the dealer that you know about the TSB. If they will not help you then play hardball and call nissanusa.