Update on loss of Turbo Boost and check Transmission light

[davidkerryedwards]

I was on the Busnuts site the other day and noticed a few people on the forum
there
seemed quite familar with the computer diagnostics of DD's.
I don't think that computers necessarily make engines worse. It's just that a
diagnostician
has to understand both computers and engines to be a good diagnostician once the
engine is computerized.
There are lots of good mechanics but a good diagnostician is different than a
good
mechanic. When I worked at a GM dealership back in the 60's everyone recognized
that
one guy had the most creative mind in diagnosing a problem so all the difficult
problems
went to him. When I was having my problems this summer, I saw the same social
dynamics in the truck shop. People respected 'Shrimp's' ability to diagnose and
thought
he was the best chance of getting the problem figured out correctly.
Having to diagnose a computer as well as an engine makes finding such a person
more
difficult, particularly amongst amateurs.

Kerry
82 Fc 35
Denver

--- In WanderlodgeForum@yahoogroups.com, "Gregory OConnor"
wrote:
>
> Kerry, I disagree with you guys. Early smog computers had their
> problems but the entire thing is getting more user friendly. When a
> mechanic looks at an issue and sighs or says "fangled thing", run.
> Find one without fear of computers because he/she is not blaming the
> computers existence for their ignorance of the product.
>
> Early computers were effected by battery charging and jump-starts but
> that was corrected when problems arose. It seems that things that
> could go wrong did go wrong with 1991 8V/Allison setup in the
> trucking business by 1995 when the fleets had 450,000 miles on them.
> The uniqueness of the RV is low-miles little-use, constant battery
> charge/discharge, two battery banks and age of equipment.
>
> When a non computer rigs Airfilter gets clogged it burns too rich it
> billows black smoke. When a computerized rig gets a a/f clog the
> computer shuts down a function that will not allow it to blow smoke.
> that function usuly reduces rpms and often sets off confusing signals
> to the trans shifting computer. Something tells the computer that
> there is restricted flow. If that signal is sent and there in no
> restriction in flow then it is a bad sensor and or wire link to the
> computer or from the power source. Understanding the computer is
> key.
>
> Computerized engines have less major part failures because root
> causes of major failures are detected when they are subtle issues.
> Many folk view frequency of minor issues with computerized engines
> and transmissions as a bad annoying thing. They overlook the fact
> that these 'Check trans/engine lite occurances' become major problems
> that go undetected on the non computerized engines/trans.
>
> To answer your question, I thought about getting a code reader but
> dont feel confident enough to understand what the "fangled thing" is
> saying.
>
> I wish folk like JohnFinn and TomWarner would jump on the DD/Allison
> computer bus so I could learn more about my rig.
> GregoryO'Connor
> 94ptRomolandCa
>
> --- In WanderlodgeForum@yahoogroups.com, "davidkerryedwards"
> wrote:
> >
> > I agree that in most ways, non-computerized vehicles are easier to
> diagnose. It's why I drive
> > pre-computer Mercedes diesels for the most part. However, if a
> person does have a
> > computerized Bird, how hard is to obtain a code reader and code
> explanation chart? I
> > recently bought an OBD II code reader for my Suzuki Sidekick toad.
> I paid $100 for that code
> > reader. I figured that was about equal to one visit to a shop to
> check codes. What kind of
> > code reader is necessary for the Detroit, Allison and ZF
> transmissions? Does anyone here
> > have a reader?
> >
> > Kerry
> > 82 FC 35
> > Denver
> >
>