Ok,

I reseated the connector to the glow plug relay and checked connections at the back of the dash and that seems to have solved the glow plug light issue. When I get a chance I will crawl under it and check the ground strap.

As for the surge/pulse, it has gone for now too. I did notice it seems to occur when the fuel tank is MORE than 3/4 full. Weird. If it starts doing it again I will post more.

Thanks for now,

Glenn

__________________
2012 Mercedes ML350 Bluetec 91K (hers)
2005 Corvette 55K (fun car)
2002 VW Jetta TDI 231K (mine)
1998 Volvo S70 T5 Turbo 196K (kids)
1994 Ford F150 4WD 249K (firewood hauler)
1983 Mercedes 300D 376K (diesel commuter)

Signifigant clue there wth the high fuel level.Just do not know what to make of it. Acting up at low fuel levels more would be common.

Although a partially blocked tank vent line just might do this on shorter trips. Where otherwise it would take a much longer distance to establish enough of a tank vacuum with lower fuel levels.

Good thought.
A fully plugged vent valve combined with a marginal fuel tank cap seal ring might do this.


.

__________________
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Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician.
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Heat exchanger durability.
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Technical Quality Auditor.
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1985 300SD
1983 300D
1984 190D
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Well, I cleaned the vent about a month ago, but it cannot hurt to look at it again!

__________________
2012 Mercedes ML350 Bluetec 91K (hers)
2005 Corvette 55K (fun car)
2002 VW Jetta TDI 231K (mine)
1998 Volvo S70 T5 Turbo 196K (kids)
1994 Ford F150 4WD 249K (firewood hauler)
1983 Mercedes 300D 376K (diesel commuter)

Question for the OP - what do you think was the cause/solution of the stuttering?

__________________
Charlie

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'66 VW 1300 96K miles
'97 E300D 239K miles
'85 300D 203K miles (sold Sep 2012)