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1988 240 Sedan intermittant loss of acceleration 200 1988

posted by  someone claiming to be jfiene on  Sun Feb 16 05:16 CST 2003 [RELATED]

I have a 1988 Volvo 240 with 180k that is experiencing an intermittant loss of acceleration. This used to happen rarely but since I installed new plugs, cap, rotor, checked wires and installed a new fuel filter, it happens regularly. As the loss of acceleration is occuring, additional throttle provides only engine bogging. Speed will top out at 40mph. I can temporarily solve the problem by shutting down the car and restarting. Occasionally I can continue along shifting through the gears and the problem will stop.

Throughout the forum I have found 11 seperate culprits. Unfortunately none of these solutions seem to mimic my problem exactly.

Could you all kindly provide some advise?








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    1988 240 Sedan intermittant loss of acceleration 200 1988

    posted by  R2 on  Sun Feb 16 15:50 CST 2003
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    last visit: Sat Feb 5 09:48 CST 2011
    [RELATED]

    I would first look at cleaning the terminals on the coil, the small wires. Did someone try to adjust timing? If so, make sure the distributor clamp was (is) tightened and get the base timing re-set.








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    1988 240 Sedan intermittant loss of acceleration 200 1988

    posted by  flood on  Sun Feb 16 14:48 CST 2003
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    last visit: Fri Oct 24 05:07 CST 2014
    [RELATED]

    my brother (who also has an '88) recently experienced the same phenominon after replacing the cap, rotor, wires and plugs. After MUCH gnashing of teeth and wringing of hands, it turned out to be the ground wire on the fuel rail. Must have been disturbed during the tune up which caused an intermitent loss of power to the fuel pump. Big headache to diagnose, cheap and easy to fix








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    1988 240 Sedan intermittant loss of acceleration 200 1988

    posted by  daveshan on  Sun Feb 16 06:26 CST 2003
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    last visit: Sun Oct 19 07:03 CST 2014
    [RELATED]

    This sounds a lot like the symptoms my 740 exibited when the cat finally broke up and started blocking the outlet, do you have any rattling sounds from down under? The '88 would bog down under hard acceleration when the AMM was starting to fail, odd thing was it tested good per the Bentley's tests. Both felt similar with the cars runing OK under lite load and having issues at load.
    Sorry I can't be more specific
    Dave Shannon
    Spring Valley, California (San Diego area)
    '84-245 200K+
    '85-244Ti 200K+
    '86-740 230K+
    '88-240 180K+
    www.volvo2.homestead.com (Opens new window)








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      1988 240 Sedan intermittant loss of acceleration 200 1988

      posted by  someone claiming to be patrick on  Sun Feb 16 17:47 CST 2003 [RELATED]

      Yes I will Ditto the Converter
      lay under the car and knock on it
      and see if it makes a rattle noise
      even if it does not it still would be bad
      I have broken 3 so far
      ever 15000 miles I need on on my 86 240
      the aftermarkets are just not like the volvo one
      mine always break on the back side
      so if you just unbolted it on the front flange
      you would not be able to tell.

      to repair
      I had the muffler man weld the flange to a piece of pipe
      instead of the converter and just use exhaust clamps to attach it
      so now it is a easy change that is if exhaust work it easy

      hope this helps

      patrick






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