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#1
06-04-2009, 10:45 AM
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Fuel starvation issue in 300TD wagon
When I near 4-5 gallons of fuel left in my '85 300TD wagon, the engine starts to act fuel starved. At ~3 gallons in the tank the car acts "empty" (and no longer runs). The engine can "pull" fuel from the tank fine if going downhill. Going up hill will stall the car if only 3-4 gallons are left. If I fill the tank up the problem disappears.
My fuel guage works correctly. Both fuel filters have been replaced. There are no fuel leaks. The fuel strainer has been removed, cleaned, and reinstalled (it wasn't clogged). When I pulled the strainer, I verified there were still at least 3 actual gallons of fuel in the tank, but the car acted empty. When draining the 3 gallons of fuel from the supply line on the tank, there did not appear to be any resistance to the flow. The rear wheels were on ramps. What else could cause a starvation issue?
__________________
JWJ 1983 MB 300D - > 430,000 miles - Deep Blue - Bilstein Comforts - 0-60 in 24 seconds - 27MPG 1985 MB 300TD (wagon) - > 275,000 miles - Manila Beige - Thule rack - 0-60 in 18 seconds - 22 - 25MPG Biodiesel, Mobil Delvac 1, and Viton fuel lines! 
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#2
06-04-2009, 10:48 AM
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I'd guess that your supply and return lines are switched. Swap them at the tank and see if you're still having the stalling.
__________________
Chad 2006 Nissan Pathfinder LE 1998 Acura 3.0 CL OBK#44 "Pleasure in the job puts perfection in the work." - Aristotle (384-322 B.C.) SOLD 1985 300TD - Red Dragon 1986 300SDL - Coda 1991 - 300TE 1995 - E320 1985 300CD - Gladys
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#3
06-04-2009, 11:02 AM
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Weak lift pump may also cause this problem I think. The wagon is more susceptible to these issues because the tank is flat and low, unlike the sedan tank. Mine will cut out when low as I go around corners so if I'm low on fuel I can only drive in a straight line.
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1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
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#4
06-04-2009, 11:06 AM
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This sounds similar to the post that fruitcakesa posted yesterday. Could your fuel tank vent be blocked (creating a vacuum as the fuel level goes down)?
__________________
Blue '83 300D "Domobile" Red '73 Cimatti City Bike (moped = fun)
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#5
06-04-2009, 02:41 PM
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Quote:
__________________
JWJ 1983 MB 300D - > 430,000 miles - Deep Blue - Bilstein Comforts - 0-60 in 24 seconds - 27MPG 1985 MB 300TD (wagon) - > 275,000 miles - Manila Beige - Thule rack - 0-60 in 18 seconds - 22 - 25MPG Biodiesel, Mobil Delvac 1, and Viton fuel lines!
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#6
06-04-2009, 03:24 PM
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Quote:
part #s 93, 102, & 77 
__________________
Chad 2006 Nissan Pathfinder LE 1998 Acura 3.0 CL OBK#44 "Pleasure in the job puts perfection in the work." - Aristotle (384-322 B.C.) SOLD 1985 300TD - Red Dragon 1986 300SDL - Coda 1991 - 300TE 1995 - E320 1985 300CD - Gladys
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#7
06-04-2009, 06:11 PM
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Quote:
What is the best way to clean a blocked vent?
__________________
JWJ 1983 MB 300D - > 430,000 miles - Deep Blue - Bilstein Comforts - 0-60 in 24 seconds - 27MPG 1985 MB 300TD (wagon) - > 275,000 miles - Manila Beige - Thule rack - 0-60 in 18 seconds - 22 - 25MPG Biodiesel, Mobil Delvac 1, and Viton fuel lines!
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#9
08-10-2009, 09:59 AM
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Quote:
__________________
83 SD 84 CD
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#10
08-10-2009, 10:54 AM
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Tubing cleaning tool
I use the inside of an old speedometer cable to clean out vents and drains.
It acts like a tiny plumbers snake. Flexible and not agressive. Works good.
__________________
85 300TD FED-Daily 84 300SD-Wife's 86 XJS-Sunday 66 GMC-Work- Given to my stepson 83 BMW Airhead- Given to my stepson
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