Thanks to "Flatrater" (our moderator).
He has allowed me to post the information on my web site detailing the information on repairing the 1995-up 3800 k series engines intake manifold EGR tube and upper manifold degradation.
The fix is quite easy. I have developed a product to repair
both sides of the problem. The problem is that the lower
manifold heats and degrades the "plastic" in the upper
plenum. The OE fix is expensive, but does fix the problem.
The repair at the OE level runs about $1400 - $1800 if it
is done properly. A lot of the money is in the parts. The
upper and lower manifolds can range upwards of $600.00 at
retail.
Our fix stills has to have the lower manifold exposed, but
not removed. Simply remove the old EGR tube (pulls out with
vice grips) and reinstall our new one. We supply for the
upper plenum a sleeve and epoxy to repair the degraded
plastic. The new fix allows for cooling between the new EGR
tube and the plenum resulting in less retained heat. Use an
OE gasket during this repair to complete the job. The
information can be found at (
http://www.ken-co.com/manifold or by emailing me at
[email protected]
[mailto]. Stock is available in the U.S. Email me and I'll
direct you to the U.S. source.
Ken Spragg