Engine & Tranny problems 2

[Troy Tikalsky]

When troubleshooting problems I always look at the last changes made. You
mentioned the alternators were recently rebuilt, how many hours use since the
rebuild? Since the problem you are having is voltage related I would check the
alternators first and remove them from the equation. Are the alternators
required for the motor to run or will the batteries provide enough power for a
short test?

Troy Tikalsky
Waconia, MN
1986 Newell DD8V92


----- Original Message -----
From: ronmarabito2002
To: WanderlodgeForum@yahoogroups.com
Sent: Tuesday, April 24, 2007 9:24 AM
Subject: [WanderlodgeForum] Re: Engine & Tranny problems 2


Had three error codes. 16, 44, and 52 52 was a ECM failure, one has
a high coolant temp and can't remember off hand the other since I'm
not currently at the coach. Both alternators were completely
re-built, so I doubt the problem is there.. Right now, with the high
amp pull and low voltage, I am more suspicious of the batteries.

R.E. (Ron) Marabito, Dallas, TX 92WB40

--- In WanderlodgeForum@yahoogroups.com, jim riordan wrote:
>
> Well,
>
> I had alot of guage problems, I found that I had alternator
problems, when I replaced both alternators those problems ceased. I
have DDEC1 the Alternator problem did not cause any problems with
them. What kind of error codes are you getting?
>
> Jim Riordan
> 88 WBWL XXV
> Stuart, Fl
>
> Gregory OConnor wrote:
> Ron, Often overlooked by class 8 repair shops are the high
amp high
> discharge /recharge inverter drawn powersource on a motorhome. The
> uncommon factors sometimes reveal possible conclusions. I would pull
> all 11 batteries (disconnect) and install one proven battery at the
> engine start bank to continue the test. The Carvers had wierd
> problems that proved to be bad batteries. I hope it is somthing
> easily correctable.
> GregoryO'Connor
> 94ptRomolandCa
>
> --- In WanderlodgeForum@yahoogroups.com, "ronmarabito2002"
> wrote:
> >
> > I had to pull into Stewart & Stevenson in Albuquerque with engine
> > power problems and shift problems. It all started after we left
> > Dallas yesterday. I had a sudden 170 amps and 10 volts, followed by
> > total loss of 12 v power to instruments, radio, etc... By the time
> I
> > was off the road, the power was back. I then noticed a lack of
> power.
> > Pulled some minor grades of 2 or 3% with a drop in speed to 50 mph
> at
> > full throttle.
> >
> > Nursed the unit in to Albuqerque this morning. Had a fuel gage
> > intermittent that went from normal to full peg on full. When
> making a
> > hard left turn, transmission check light would flash and beep.
> >
> > S & S did a power check and found at full throttle, engine could
> only
> > make 1900 rpm. When backed off, the rpm went up to 2200. Just the
> > opposite of normal. They are very suspect of the DDEC2 at this
> point,
> > but are trying to rule out everything else first. Changed air
> filter,
> > they were started on a fuel system check when I left for dinner. I
> > had checked all the connectors this morning and they were fine.
> Could
> > not trouble shoot because I have no diagram of those circuits.
> >
> > I know the grounds on the alternators and engine to chassis are
> fine.
> > Not sure about any others, but they are checking them.
> >
> > I'm convinced that whatever caused that electrical anomoly
> yesterday,
> > damaged the ECM and it will probably have to be replaced. $$$$
> >
> > Let you know more tomorrow.
> >
> > R.E. (Ron) Marabito, Dallas, TX 92WB40
> > Currently in the shop in Albuquerque, NM
> >
>
>
>
>
>
>
> ---------------------------------
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> Check outnew cars at Yahoo! Autos.
>
> [Non-text portions of this message have been removed]
>





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