[AT] O/T GM diesel question

[Mike Sloane]

That is exactly what happened to me on my '87 Ford (IH) 6.9L diesel - 
the solenoid went out, and I had to replace the entire unit. A couple of 
years later, problems developed in the glow plug wiring harness, and 
that had to be replaced. And finally, a couple of the glow plugs went, 
but the engine would still start most of the time. I ended up replacing 
them anyway, because it was hard starting in very cold weather. I think 
all the new diesels use similar glow plug circuits. We had an old Ford 
7000 roll back at work, and that engine had some kind of manifold fuel 
igniter that pumped raw burning fuel into the cylinders. That engine 
would light up every time, no matter how cold the weather or how long it 
had been sitting. I was told that Ford stopped making that engine 
because the starting system could not meet pollution standards. Some of 
the Ford industrial tractors used the same system for starting.

Mike

HaliganBar at aol.com wrote:
> Cecil
> 
> We have one of the older (1984) military 1 1/4 ton diesel pickup trucks at 
> work. When we first got it we had the same problem and it turned out to be the 
> glow plugs. There is one for each cylinder sticking out of the block. They are 
> fairly easy to change but be aware that the military vehicles use a different 
> glow plug than the civilian trucks. You can tell the diffence by the size of 
> the blade for the electrical connector. If you check the plugs and they are not 
> the problem try checking the glow plug solenoid. I'm told they sometimes go 
> bad.
> 
> Good luck,
> Karl
> 
> 
> In a message dated 11/28/04 12:37:40 PM Eastern Standard Time, 
> cmonson at hvc.rr.com writes:
> 
> << I have a 98 GMC one ton dump truck with a General Motors diesel
>  engine in it. I have not noticed any changes in fuel economy or anything
>  but it has all of a sudden become hard to start. The last couple days
>  when the temperature was around 30 degrees, which should not be a problem,
>  it would barely fire and would run on only one or two cylinders and blows
>  clouds of smoke until all cylinders are firing. Once running, it starts
>  and runs normally for the rest of the day. This engine is not a Duramax
>  diesel engine but was made a year before they made the switch.
>  
>     If this were my JD crawler with the diesel engine, I would suspect
>  that several glow plugs were bad but as I have not been able to find a
>  manual for this engine, I have no idea if it has glow plugs or not or
>  where to look. The dash has a "Wait to Start" light which works normally
>  so something is pre-heating - or is supposed to.
>  
>     It has a block heater but I can't see keeping it plugged in when
>  the temperature is only 30 degrees.
>  
>     If you have any actual experience with this engine, I would
>  appreciate hearing from you, on or off List.
>  
>  Cecil
>  -- 
>  The nicest thing about telling the truth is you never have to wonder
>  what you said.
>  
>  Cecil E Monson
>  Lucille Hand-Monson
>  Mountainville, New York   Just a little east of the North Pole
>   >>
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> 
> 

-- 
Mike Sloane
Allamuchy NJ
mikesloane at verizon.net
Images: <www.fotki.com/mikesloane>

The whole problem with the world is that fools and fanatics are always 
so certain of themselves, and wiser people so full of doubts. -Bertrand
Russell, philosopher, mathematician, author, Nobel laureate (1872-1970)


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