I have an '83 300CD that has no bottom end power. When the accelorator is depressed to the floor, it just crawls until it gets to 40MPH. The shifts appear to be too hard. I have replaced all of the filters and all of the injectors. The valves have been adjusted. WHAT NEXT???

That sounds like a failed turbo.




Please call me.

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Check your ALDA lines to and from the banjo bolt and turboswitch over valve as well. Also check to make sure the turbo waste gate is not stuck open.

Check the turbo also for free spinning, lateral play, etc.

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RRGrassi


70's Southern Pacific #5608 Fairmont A-4 MOW car

13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete.

91 W124 300D Turbo replaced, Pressure W/G actuator installed. 210K

90 Dodge D250 5.9 Cummins/5 speed. 400K

Since it takes so little time and effort. Have someone press the go pedal. Check and make sure the pump linkage has advanced the injection pump lever to it's stop.
These cars are old and simple things do wear out or fail. Also if you are not blowing black smoke with the pedal floored under load and linkage has checked out. Make sure you are getting enough fuel by running on a bottle or cleaning out the tank filter. Perhaps its easier for you just to disconect the fuel line under the tank and check for good gravity fuel flow.
The above mentioned items are just good to check out anyways. Can save a lot of effort and then you know they are okay before moving on. I have purchased cars with run problems the previous owners have sometimes suffered for years. Usually in less than an hour the problem was located.
In fact I almost count on usually finding something fairly simple on new aquisitions. Many times it's the reason they are sold. One of them will really bite me someday though.

Sounds like ALDA to me. Remove it, and be done with it. Do a search on this forum to find out how.

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Mark in MA
05 MB E320CDI 402k Granite Grey Metallic
05 MB E320CDI 267k Black
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05 MB E320CDI 209k Tectite Grey
99 Dodge 2500 Cummins 5sp 148k
62 Jeep CJ-6 120k