HELP - 8V92 will not start

[Larry Kehler]

I need some suggestions.
I have been working on the coach for week but did not start the engine.
I changed the themostate and checked the water pump on the generator
engine.
The generator now runs great.
Yesterday I put new exhaust manifold gaskets on the street side of the
coach engine.
This morning I tried to start the engine to check the exhaust for leaks.
The engine starts and runs for about 10 seconds and quits. High idle
switch does not change result. Accelerator pedal has no effect.
Check engine light does not stay on and the codes are the same as were
there when I got the coach last year.

My concern is that last week I tried to install a VMSpc JIB on the
wrong plug and then after help from Rob, installed the JIB on right
plug. It turned out the JIB was faulty. I am waiting for a
replacement JIB. The concern is that that messing with the plugs has
screwed up my ECM and that is causing the non-starting problem.

The engine was running great about three weeks ago before I did all
the above work. It could be plugged fuel filters. I am planning on
changing filters tomorrow. It seems unlikely that it is plugged
filter. My vaccuum gage does not move above low range when it is
trying to run. Oil pressure moves to 40 lbs. Coolant level is full.

I am real trouble because my wife was planning on leaving tomorrow on
a two week trip.
Any suggestions?
How could I determine if I messed up the ECM?

Larry Kehler
1994 PT-40WBDA
St Louis

[Leroy Eckert]

This may be way out. Disconnect the main ground wire for the battery bank which should remove all power from the coach. Leave it disconnected for about 5 minutes. Reconnect and try to start. I guess a wire in the wrong place on the DDL could cause problems but I wonder about that. If that does not work check the main harness connection to the ECM for corrosion. And check the main battery ground that is attached to the coach frame on the curb side near the rear bumper(at least that is where mine is) Hope this helps. I doubt it is a filter. Leroy Eckert 1990 WB-40 Royale Dahlonega, GA Smoke N Mirrors --- On Wed, 6/18/08, Larry Kehler wrote: From: Larry Kehler Subject: [WanderlodgeForum] HELP - 8V92 will not start To: WanderlodgeForum@yahoogroups.com Date: Wednesday, June 18, 2008, 8:45 PM I need some suggestions. I have been working on the coach for week but did not start the engine. I changed the themostate and checked the water pump on the generator engine. The generator now runs great. Yesterday I put new exhaust manifold gaskets on the street side of the coach engine. This morning I tried to start the engine to check the exhaust for leaks. The engine starts and runs for about 10 seconds and quits. High idle switch does not change result. Accelerator pedal has no effect. Check engine light does not stay on and the codes are the same as were there when I got the coach last year. My concern is that last week I tried to install a VMSpc JIB on the wrong plug and then after help from Rob, installed the JIB on right plug. It turned out the JIB was faulty. I am waiting for a replacement JIB. The concern is that that messing with the plugs has screwed up my ECM and that is causing the non-starting problem. The engine was running great about three weeks ago before I did all the above work. It could be plugged fuel filters. I am planning on changing filters tomorrow. It seems unlikely that it is plugged filter. My vaccuum gage does not move above low range when it is trying to run. Oil pressure moves to 40 lbs. Coolant level is full. I am real trouble because my wife was planning on leaving tomorrow on a two week trip. Any suggestions? How could I determine if I messed up the ECM? Larry Kehler 1994 PT-40WBDA St Louis

[Mike McMahan]

Does the e3ngine die as soon as you relase the key to the run
position? Mike Mcmahan96 42' Wanderlodge-

-- In WanderlodgeForum@yahoogroups.com, Leroy Eckert
wrote:
>
> This may be way out.
> Disconnect the main ground wire for the battery bank which should
remove all power from the coach. Leave it disconnected for about 5
minutes. Reconnect and try to start. I guess a wire in the wrong
place on the DDL could cause problems but I wonder about that.
> If that does not work check the main harness connection to the ECM
for corrosion. And check the main battery ground that is attached to
the coach frame on the curb side near the rear bumper(at least that
is where mine is) Hope this helps. I doubt it is a filter.
>
> Leroy Eckert
> 1990 WB-40 Royale
> Dahlonega, GA
> Smoke N Mirrors
>
>
> --- On Wed, 6/18/08, Larry Kehler wrote:
> From: Larry Kehler
> Subject: [WanderlodgeForum] HELP - 8V92 will not start
> To: WanderlodgeForum@yahoogroups.com
> Date: Wednesday, June 18, 2008, 8:45 PM
>
>
>
>
>
>
>
>
>
>
>
> I need some suggestions.
>
> I have been working on the coach for week but did not start the
engine.
>
> I changed the themostate and checked the water pump on the generator
>
> engine.
>
> The generator now runs great.
>
> Yesterday I put new exhaust manifold gaskets on the street side of
the
>
> coach engine.
>
> This morning I tried to start the engine to check the exhaust for
leaks.
>
> The engine starts and runs for about 10 seconds and quits. High
idle
>
> switch does not change result. Accelerator pedal has no effect.
>
> Check engine light does not stay on and the codes are the same as
were
>
> there when I got the coach last year.
>
>
>
> My concern is that last week I tried to install a VMSpc JIB on the
>
> wrong plug and then after help from Rob, installed the JIB on right
>
> plug. It turned out the JIB was faulty. I am waiting for a
>
> replacement JIB. The concern is that that messing with the plugs
has
>
> screwed up my ECM and that is causing the non-starting problem.
>
>
>
> The engine was running great about three weeks ago before I did all
>
> the above work. It could be plugged fuel filters. I am planning on
>
> changing filters tomorrow. It seems unlikely that it is plugged
>
> filter. My vaccuum gage does not move above low range when it is
>
> trying to run. Oil pressure moves to 40 lbs. Coolant level is
full.
>
>
>
> I am real trouble because my wife was planning on leaving tomorrow
on
>
> a two week trip.
>
> Any suggestions?
>
> How could I determine if I messed up the ECM?
>
>
>
> Larry Kehler
>
> 1994 PT-40WBDA
>
> St Louis
>

[Larry Kehler]

Mike & Leroy
I disconnected all ground and power wires and cleaned the connections.
No effect.
The engine runs for 10 -15 -20 seconds after the key is released.
But runs about 500 RPM then dies. Accelerator had no effect during
the short run time.

Larry Kehler
1994 PT-40


--- In WanderlodgeForum@yahoogroups.com, "Mike McMahan" <mmcmahan@...>
wrote:
>
> Does the e3ngine die as soon as you relase the key to the run
> position? Mike Mcmahan96 42' Wanderlodge-
>
> -- In WanderlodgeForum@yahoogroups.com, Leroy Eckert
> wrote:
> >
> > This may be way out.
> > Disconnect the main ground wire for the battery bank which should
> remove all power from the coach. Leave it disconnected for about 5
> minutes. Reconnect and try to start. I guess a wire in the wrong
> place on the DDL could cause problems but I wonder about that.
> > If that does not work check the main harness connection to the ECM
> for corrosion. And check the main battery ground that is attached to
> the coach frame on the curb side near the rear bumper(at least that
> is where mine is) Hope this helps. I doubt it is a filter.
> >
> > Leroy Eckert
> > 1990 WB-40 Royale
> > Dahlonega, GA
> > Smoke N Mirrors
> >

[Troy Tikalsky]

Could it be a low coolant sensor causing shutdown?

No accelerator indicates no air pressure, is the air pressure building?

Troy

86 Newell

----- Original Message -----

From: "llkehler@gmail.com"

To: "WanderlodgeForum@yahoogroups.com"

Sent: Wednesday, June 18, 2008 10:02 PM

Subject: [WanderlodgeForum] Re: HELP - 8V92 will not start

Mike & Leroy
I disconnected all ground and power wires and cleaned the connections.
No effect.
The engine runs for 10 -15 -20 seconds after the key is released.
But runs about 500 RPM then dies. Accelerator had no effect during
the short run time.

Larry Kehler
1994 PT-40

--- In "WanderlodgeForum@yahoogroups.com", "Mike McMahan" <mmcmahan@..<WBR>.>
wrote:
>
> Does the e3ngine die as soon as you relase the key to the run
> position? Mike Mcmahan96 42' Wanderlodge-
>
> -- In "WanderlodgeForum%40yahoogroups.com", Leroy Eckert >
> wrote:
> >
> > This may be way out.
> > Disconnect the main ground wire for the battery bank which should
> remove all power from the coach. Leave it disconnected for about 5
> minutes. Reconnect and try to start. I guess a wire in the wrong
> place on the DDL could cause problems but I wonder about that.
> > If that does not work check the main harness connection to the ECM
> for corrosion. And check the main battery ground that is attached to
> the coach frame on the curb side near the rear bumper(at least that
> is where mine is) Hope this helps. I doubt it is a filter.
> >
> > Leroy Eckert
> > 1990 WB-40 Royale
> > Dahlonega, GA
> > Smoke N Mirrors
> >

[Curt Sprenger]

Sounds like an air in the fuel line problem, prime going away. Once a diesel starts it should run until there is no fuel/air feeding the engine.

On Wed, Jun 18, 2008 at 8:43 PM, Troy Tikalsky <"ttikalsky@embarqmail.com"> wrote:

Could it be a low coolant sensor causing shutdown?

No accelerator indicates no air pressure, is the air pressure building?

Troy

86 Newell

----- Original Message -----

From: "llkehler@gmail.com"

To: "WanderlodgeForum@yahoogroups.com"

Sent: Wednesday, June 18, 2008 10:02 PM

Subject: [WanderlodgeForum] Re: HELP - 8V92 will not start

Mike & Leroy
I disconnected all ground and power wires and cleaned the connections.
No effect.
The engine runs for 10 -15 -20 seconds after the key is released.
But runs about 500 RPM then dies. Accelerator had no effect during
the short run time.

Larry Kehler
1994 PT-40

--- In "WanderlodgeForum@yahoogroups.com", "Mike McMahan" <mmcmahan@...>
wrote:
>
> Does the e3ngine die as soon as you relase the key to the run
> position? Mike Mcmahan96 42' Wanderlodge-
>
> -- In "WanderlodgeForum%40yahoogroups.com", Leroy Eckert
> wrote:
> >
> > This may be way out.
> > Disconnect the main ground wire for the battery bank which should
> remove all power from the coach. Leave it disconnected for about 5
> minutes. Reconnect and try to start. I guess a wire in the wrong
> place on the DDL could cause problems but I wonder about that.
> > If that does not work check the main harness connection to the ECM
> for corrosion. And check the main battery ground that is attached to
> the coach frame on the curb side near the rear bumper(at least that
> is where mine is) Hope this helps. I doubt it is a filter.
> >
> > Leroy Eckert
> > 1990 WB-40 Royale
> > Dahlonega, GA
> > Smoke N Mirrors
> >

--
Curt Sprenger
1987 PT38 8V92 "MacAttack Racing"
Anaheim Hills, CA

[Mike McMahan]

Larry, I've said this before but it bears repeating. The folks that
taught me the little that I know about engine told me to always look
for the simple stuff first when I had a problem. Have you tried to
start the c0ach from the rear start switch? My guess is that in
replacing the exhaust gasket that a wire or a connection is pulled
loose. When you had the vspec hooked up wrong did you turn the key
on or try to start the engine? If not then I doubt that is the
problem. I wish I could be more help but i am not familar with the
94 engine compartment. Mike McMahan 96 42' Wanderlodge

--- In WanderlodgeForum@yahoogroups.com, "Larry Kehler"
wrote:
>
> Mike & Leroy
> I disconnected all ground and power wires and cleaned the
connections.
> No effect.
> The engine runs for 10 -15 -20 seconds after the key is released.
> But runs about 500 RPM then dies. Accelerator had no effect during
> the short run time.
>
> Larry Kehler
> 1994 PT-40
>
>
> --- In WanderlodgeForum@yahoogroups.com, "Mike McMahan" <mmcmahan@>
> wrote:
> >
> > Does the e3ngine die as soon as you relase the key to the run
> > position? Mike Mcmahan96 42' Wanderlodge-
> >
> > -- In WanderlodgeForum@yahoogroups.com, Leroy Eckert

> > wrote:
> > >
> > > This may be way out.
> > > Disconnect the main ground wire for the battery bank which
should
> > remove all power from the coach. Leave it disconnected for about
5
> > minutes. Reconnect and try to start. I guess a wire in the wrong
> > place on the DDL could cause problems but I wonder about that.
> > > If that does not work check the main harness connection to the
ECM
> > for corrosion. And check the main battery ground that is attached
to
> > the coach frame on the curb side near the rear bumper(at least
that
> > is where mine is) Hope this helps. I doubt it is a filter.
> > >
> > > Leroy Eckert
> > > 1990 WB-40 Royale
> > > Dahlonega, GA
> > > Smoke N Mirrors
> > >
>

[ronmarabito2002]

You have air in the fuel lines. Check the fuel level in each of your
filters. Make sure they are full, then try to start. You may have to
add fuel to the filters several times to get it to run. You have
probably added more air trying to start. Once running, you need to
find the sourse of air leaking into a fuel line or filter. Check the
Racor for bubbles while running. If they are present, it could be a
loose or faulty drain fitting. If no bubbles, then the source of the
leak is somewhere else. Racor leak is common.

R.E. (Ron) Marabito, Dallas, TX 92WB40
Currently in Streetsboro, Ohio

--- In WanderlodgeForum@yahoogroups.com, "Larry Kehler"
wrote:
>
> I need some suggestions.
> I have been working on the coach for week but did not start the engine.
> I changed the themostate and checked the water pump on the generator
> engine.
> The generator now runs great.
> Yesterday I put new exhaust manifold gaskets on the street side of the
> coach engine.
> This morning I tried to start the engine to check the exhaust for leaks.
> The engine starts and runs for about 10 seconds and quits. High idle
> switch does not change result. Accelerator pedal has no effect.
> Check engine light does not stay on and the codes are the same as were
> there when I got the coach last year.
>
> My concern is that last week I tried to install a VMSpc JIB on the
> wrong plug and then after help from Rob, installed the JIB on right
> plug. It turned out the JIB was faulty. I am waiting for a
> replacement JIB. The concern is that that messing with the plugs has
> screwed up my ECM and that is causing the non-starting problem.
>
> The engine was running great about three weeks ago before I did all
> the above work. It could be plugged fuel filters. I am planning on
> changing filters tomorrow. It seems unlikely that it is plugged
> filter. My vaccuum gage does not move above low range when it is
> trying to run. Oil pressure moves to 40 lbs. Coolant level is full.
>
> I am real trouble because my wife was planning on leaving tomorrow on
> a two week trip.
> Any suggestions?
> How could I determine if I messed up the ECM?
>
> Larry Kehler
> 1994 PT-40WBDA
> St Louis
>

[Leroy Eckert]

Is it blowing white smoke when it runs indicating unburned fuel? Possible fuel starvation. If it starts it should run if it has fuel unless something shuts the fuel down. What plug other than the 12 pin DDL did you use>>?? On my DDEC II there are 7 pins used on the DDL. Or was it something you plugged into your laptop?? Is it a DDEC II or III?? Did you connect the VMSpc to the 12 pin Allison tranny plug initally which may have 4 pins used if it is a HT755CR ATEC 5 speed tranny? I may be running off at the mouth here but something ain't right. Just ideas coming out of my noodle. It may be fuel starvation. Who knows. I say give the wife a wet noodle to beat you with. Really it is not your fault. Leroy Eckert 1990 WB-40 Royale Dahlonega, GA Smoke N Mirrors --- On Wed, 6/18/08, Larry Kehler wrote: From: Larry Kehler Subject: [WanderlodgeForum] Re: HELP - 8V92 will not start To: WanderlodgeForum@yahoogroups.com Date: Wednesday, June 18, 2008, 11:02 PM Mike & Leroy I disconnected all ground and power wires and cleaned the connections. No effect. The engine runs for 10 -15 -20 seconds after the key is released. But runs about 500 RPM then dies. Accelerator had no effect during the short run time. Larry Kehler 1994 PT-40 --- In "WanderlodgeForum%40yahoogroups.com", "Mike McMahan" <mmcmahan@.. .> wrote: > > Does the e3ngine die as soon as you relase the key to the run > position? Mike Mcmahan96 42' Wanderlodge- > > -- In "WanderlodgeForum%40yahoogroups.com", Leroy Eckert > wrote: > > > > This may be way out. > > Disconnect the main ground wire for the battery bank which should > remove all power from the coach. Leave it disconnected for about 5 > minutes. Reconnect and try to start. I guess a wire in the wrong > place on the DDL could cause problems but I wonder about that. > > If that does not work check the main harness connection to the ECM > for corrosion. And check the main battery ground that is attached to > the coach frame on the curb side near the rear bumper(at least that > is where mine is) Hope this helps. I doubt it is a filter. > > > > Leroy Eckert > > 1990 WB-40 Royale > > Dahlonega, GA > > Smoke N Mirrors > >

[Gregory OConnor]

no new codes make it sound like it is not a DDac shutdown. I would go
with fuel (as do Curt and Ron). Either air in fuel or the air operated
FuelShutOff has issue.

I would use an aux air compressor or shop air compressor to pump up
the tanks, exersize the key 'on and off' then try a start.( I dont
know if this would even have any effect)
The other thing is some relay or gadget in the engine compartment that
RandyDupree once spoke of????? Could be a ground to the electric over
air operated fuelshut off switch???? Or wire in that appliance.

GregoryO'Connor
94ptRomolandCa