Can anyone on the list verify that 5.9s like to start
pinging? I don't want an engine that is going to
start sounding bad on me.
Thanks,
Bob H.
--- "Woodruff, Jason P"
<Jason.Woodruff@West.Boeing.com> wrote:
> I think your looking for QC but I'll give you my CC
> stats
>
> 4.7L CC Auto 2wd, 3.55 gear 255/55 17" tires.
> Weight 4000lbs +/-100
>
> 50/50 city highway from 17 to 19mpg, depending on
> the weight of my foot.
> 100% highway on my road trip avg 20 mpg over
> 2500miles and a one tank best
> of 22.5mpg.
> The worst I ever had was 16.3mpg, I was laying
> rubber all over town.
>
> I guess my mods (intake and exhaust) to have added
> .5mpg to the above stats.
>
> Will on this list gets 26mpg consistently, but he's
> a freak.
>
> What I've heard on the list
> Some of the manual 4.7L have been known to stall
> from Idle
> The 4.7L auto is so far a good tranny, but not a
> performance tranny. Ask
> Steve STL about that.
>
> I haven't seen anyone mention this and I'm sure it
> get back to me but check
> the archives, there are two types of 5.9's. Those
> that ping and those that
> will ping. Matt is running a 4.7L with a PCM flash
> for advance timing AND a
> Jet chip for advance timing and his is yet to ping.
>
> The 4.7L engine is too new to quote longevity stats,
> but talk to the Jeep
> Grand Cherokee guys, the 4.7L started there in '99.
>
> Jay W
> 4.7L Auto Sport+ C.C. 2wd Black
> Mods Profile page at
>
http://www.twistedbits.net/WWWProfile/dakota/Re5X8z5la@Ix2/profile.htm
>
>
>
> Date: Thu, 4 Jan 2001 20:23:09 -0800 (PST)
> From: "Bob H." <dakotacab@yahoo.com>
> Subject: DML: 5.9 MPG? 4.7 MPG?
>
> Ok, here are a few more questions.
>
> Gas Mileage:
> 5.9 w/ 3.92 =
> 5.9 w/ 3.55 =
> 4.7 w/ 3.92 =
> 4.7 w/ 3.55 =
> Please specify automatic or manual on 4.7
>
> Also, do you know of any specific problems from the
> 4.7 or 5.9 engines and transmissions that I would be
> likely to encounter--cracked heads from 5.9 or is
> that
> only the 5.2?
>
> Thanks-this list is awesome as far as good quality
> replies. I really appreciate all the quick answers.
> Bob H.
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