Ron,
No modified intake and it's a plastic hose using a foam rubber hose slipped
over it and the connection behind the tb. Not a very good design. THe
plastic ok but makes it nearly impossible to get teh pcv valve out. Oh, I
just something new about the 4.7 today. The only place you can get the pcv
valve is the dealer. Went to Autozone, Pep Boys, DIscount Auto, and NAPA
today and no one has a listing. Dealer even told me no one else would have
it. Love the truck but there are some things here that are really anooying
me.
Jeff Durling
'01 4x2 QC SLT+
----- Original Message -----
From: "Ronald Wong" <ron-wong@cox.net>
To: <dakota-truck@dakota-truck.net>
Sent: Saturday, August 10, 2002 3:59 PM
Subject: RE: DML: Poor Mileage
>
> <snip> I did find when I changed my spark plugs that the
> tube that runs from the PCV valve to the rear of the intake behind the
> throttle body was not attached back there. I put it back on but it fits
> so loose that it comes back off if you just touch it. <snip>
>
> <snip> The funny thing is when I pulled
> the plugs after 20k they were running real hot to the point that the
> electrodes were starting to burn off and showing signs of blistering.
<snip>
>
> If the hose is that loose or has fallen off, that would be considered a
huge
> vacuum leak. That would cause your second condition because of a lean,
lean
> burn. Doing that to the plugs would drain your power, cause you to ping
> excessively, thereby causing your gas mileage problems. Your gas mileage,
> however, is the least of your problems. If you don't get it fixed you
could
> end up with piston problems from the heat, and the detonation. That
> detonation, which is the ignition of the fuel before the right time is
like
> a little guy with a sledge hammer hammering the top of your piston,
perhaps
> on its upward movement. You have to get the hose fixed. Make sure you
> replace it with a fuel-capable hose otherwise it'll rot and fall off
again.
> I don't know if you have a modified intake or not, but on 5.9's with a K&N
> FIPK, the PCV hose gets stretched really tight and it's better to just go
> out and buy a new, longer one, rather than wait till the problem arises.
> You can get fuel hoses from any auto parts store. Good luck!
>
> Ron
> 00 PB SLT QC 4X2 5.9 46RE 3.92 LSD
> For modifications see my DML Profile (URL follows)
> http://www.twistedbits.net/WWWProfile/dakota/Kw9pV1EkFeOYY
>
>
>
>
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