[Vwdiesel] back on topic, problem with a VW diesel engine

[S. Shourds]

LBaird119 at aol.com wrote:

>  When the check valve fitting at the return line, on my 6.2s pump was 
>pluggged, they do the opposite.  I'd lose power and engine speed until I 
>was sitting on the side of the road at an idle and then die.  Wait a few and 
>it'd start, maybe go a couple hundred feet and die down again.  Thought it 
>was a plugged fuel filter.  Turns out high pressure in the pump shuts it 
>down so therefore low pressure would crank it up.  Sort of the opposite of 
>what you'd expect!
>     Loren
>
>
>In a message dated 2/13/2006 7:52:38 AM Pacific Standard Time, 
>jhsg at sasktel.net writes:
>
>  
>
>>The smoke was
>>incredible... you could cut it up for cordwood but the thing was, there was
>>no fuel there to make the smoke with.... it had to do with lack of internal
>>pump pressure and the timing advance with no pump internal pressure to
>>control it with.
>>
>>    
>>


OK, so, this came up in a recent conversation with a friend.  He's been 
driving down the freeway at 40 mph (super dangerous with Texas 
traffic--really fast, really heavy, really SUV-sized) becuase his rabbit 
truck just won't go any faster.  I keep hammering at him to change his 
fuel filter becuase it sounded to me like it was plugged.  "IT'S $6!" is 
what I keep yelling into the phone.  I asked him if there was any smoke 
and he said, "smoke?......uh...no?"  I got the feeling he hadn't looked 
at all, but I suppose he would have noticed if there had been a forest 
fire behind him.  I had thought that on a system like VW's, it would 
just quit performing without smoking.  Or did I get lost in the bus 
engine dynamics?

If, BTW, anyone has anything outside of the fuel/air filters to 
recommend, let me know.  He did mention that it started right after he 
filled up somwhere and put in some kind of additive.  It may also have 
something to do with the 1qt/100 mile oil consumption, too. 

I need to go seize this guy's truck and leave him a '96 Honda.  He's 
going to get himself killed becase he won't work on it to get it running 
well.  At least I completely blow up the engine and start over. 

-Shalyn