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'84 300TD Fuel Starvation when 3 gallons remain
My 300TD engine starts shaking & accelerates poorly from idle....when the fuel is down to about 3 gallons remaining. I'm guessing the fuel is feeding poorly.
It has been doing this for several months. I replaced both fuel filters with no change. My remaining guess is the strainer, but I'm surprised the behavior has been exactly the same and not worse. Any suggestions? Scott
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#2
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someone might have swapped the feed and return lines
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#3
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that or the fuel strainer may be clogged, only allowing fuel from it's top.
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere! |
#4
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Quote:
I successfully cleared out the line by applying air from the engine compartment back towards the tank, about 90 PSI. It cleared out whatever it was that was partially plugging the line. Just be sure to remove the filler cap before doing this procedure I have a theory that wagons are more prone to this than the sedans because the fuel tank is down low in the wagon hence no head pressure to the lift pump which is at about the same or higher elevation than the bottom of the tank. The sedan has the tank up above the rear seat, make sense?
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'95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting! |
#5
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i had the same problem with my 91 300d,in my case it was the lower half of the strainer in the tank was really plugged up with black gunk,cleaning it cured to problem. Not a fun job but at least it only costs your time! My $.02 Don
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Red Green "This is only temporary,Unless it works!" 97 E300D 157000 miles 87 300TD ?141k? miles |
#6
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Don't let it get down to 3 gallons?
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'81 MB 300SD, '82 MB 300D Turbo (sold/RIP), '04 Lincoln Town Car Ultimate Sooner or later every car falls apart, ours does it later! -German Narrator in a MB Promotion Film about the then brand new W123. |
#7
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While I can see it is best to pull the tank stainer and clean it has anyone had any success clearing a partly plugged strainer with an additive like Startron of something else?
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84 300D, 82 Volvo 244Gl Diesel |
#8
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Thanks for the replies. Today I put the rear wheels on ramps, drained the tank, and removed the strainer with the ingenious reversed spark plug method.
The strainer was partially plugged with black stuff...appears to be algae. I have a chemical for that I'll try. Regards, Scott
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