Bill, I'm glad to see you took the time to look at my concerns.I thought
that I was helping the sludge problem,but apparently not.The coolant
circulation may very well be realted to my driving style.I usually shift at
1800 rpm when I am "Accelerating normally",as in out in traffic.When I am
alone on the road,I frequently find myself shifting at 1200-1300. I'm not
into "getting on it", or accelerating hard.If I wanted to race around and go
fast, I'd just get out one of the race cars and drive the hell out of it.I
know that they are built to take it.All I need my 4.7L to do is to pull my
truck up to speed in a reasonable amount of time.I'll have to drive a new
2wd 4.7L auto/3.92 tomorrow and check the shift points.I may even borrow it
for a few days to see if I can note anything else about it(cooling
charcteristics,power,mileage,etc.).I talked to my good friend that's the
service manager and he told me to just come get one whenever I wanted to do
it. I think that my valve covers are just the result of a poor cating, as
you suggested.I already have the problem documented.Thanks again for your
input,
Will Coughlin willcoughlin@hotmail.com
'00 reg.cab,2wd,4.7L/hd5-spd/3.92sg(9.25")
http://www.geocities.com/willcoughlin/index.html
----Original Message Follows----
From: SEMIHEMI01@aol.com
Reply-To: dakota-truck@buffnet.net
To: dakota-truck@buffnet.net
Subject: Re: DML: RE: Re: Re: 4.7 to 3.7 = more problems???
Date: Mon, 26 Feb 2001 15:10:23 EST
Will,
I'll have to agree with Ron on the RPM bit. if you continue to baby the
4.7 you are going to have a real sludge problem. This low RPM may also have
a
hell of a lot to do with your cooling problem. You are not circulating
enough
coolant. I very seldom shift under 2000-2500 rpm in the lower gears. This is
just the beginning of the power & torque band. This engine was designed to
run, I've noticed that lugging it causes the computer to become confused and
the idle goes crazy. It wants to hunt the right idle rpm and will go up and
down. If you just drive it like you would like it to run, it will. Have
someone with an automatic give you the shift points for normal driving and
shift it at that point. It's a lot higher than you think.
As for the valve covers, Take it to the Dealer and see what they say is
happening to them. They would flake only if the magnesium was cast too cold.
(poor casting) Get it documented by the dealer then if anything happens
you'll have it in writing to fall back on. I really think you are worrying
for nothing. Bill
SEMIHEMI01@AOL.COM (Bill C.) 2001 QC, 4.7L, 5spd. 3.55 LSD
K-N + Cool-Air, Quick-D TB, 10w-30 MOBIL 1, 180 T'STAT, SilBlades
GIBSON 3" Single Side-Swept cat-back, G-TECH, <A
HREF="http://hometown.aol.com/semihemi01/">"THE DAK"</A>
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