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Can't get more than 2000 RPM from the engine. 200 1987

posted by  kenickie on  Mon Jan 27 03:43 CST 2003
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Hello,

Started up today with no problems, got two blocks from home and the engine bogged-down - couldn't get more than 2000 RPM out of it. Pulled off to the side, turned off the engine for a minute, started up and got full RPMs. Was able to drive a couple of miles with no problems, then the same thing. Pulled over, turned off the engine for a minute, started up fine and drove for another mile. Same thing again - but this time the engine stayed bogged-down - like there was a governor on the engine at 2000 RPM. I was able to limp back home.

Idles fine, temperature not a problem. Any ideas?

Thanks!
Ron

87 245DL M47 200K







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    It was the catalytic converter. 200 1987

    posted by  kenickie on  Fri Jan 31 05:36 CST 2003
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    It was the catalytic converter; a chunk of it broke off and formed a ball that was slightly larger than the exhaust diameter, thereby blocking exhaust and increasing back-pressure on the engine.

    I removed the catalytic converter and punched out all the catalyst with a piece of rebar. Problem solved - except I now must find a new one....

    Thanks to all who responded!
    Ron








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    Can't get more than 2000 RPM from the engine. 200 1987

    posted by  ricko on  Mon Jan 27 06:44 CST 2003
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    last visit: Thu Aug 21 08:31 CST 2014
    [RELATED]

    My 1986 240 did that last month. Could only rev to 3000. My catalytic converter was blocked. Check it by putting your hand over the tail pipe and feel for exhaust. Search archives.
    Replaced it with a spare and all is well.








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    It sounds like it could be your Fuel pump. 200 1987

    posted by  Sirmebes on  Mon Jan 27 04:26 CST 2003
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    It might be on the verge of dying and it's not providing enough gas. It sounds as though it is clearly linked to fuel system. Could even be a clogged fuel filter or a bad tranfer fuel pump (located in your tank).

    If you have a Bentley manual, it oulines testing these units very clearly.

    Cheers,
    SM
    --
    90 BMW 325is, 98 BMW 528i, 90 Volvo 240DL








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      It sounds like it could be your Fuel pump. 200 1987

      posted by  someone claiming to be Stephen Webb on  Mon Jan 27 15:14 CST 2003 [RELATED]


      I second the look at the fuel pump.

      You may be able to clear up the problem by filling up the tank - when the transfer pump is faulty or disconnected, the main pump can suck the fuel by itself, but when the level gets low it can cause problems like you describe.

      I just had to re-connect the electrical connection to my (new) in-tank pump the other day. On the wagon, lift the flat storage area door and unscrew the two mounting screws. You can then lift the floor piece away from the body of the car which exposes the wiring harness to the in tank pump. Make sure it is getting voltage and is connected.


      Of course this isn't the only possiblity, and the other suggestions such as clogged fuel filter or failing main pump shouldn't be overlooked.

      Good luck...

      -Steve







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