Fuel filters have been replaced religiously-but I do not know about the in tank filter. I think that I had a mechanic clean it out in an attempt to get the fuel gauge to work properly but that really did not improve the indicator.

I will check all of the suggestions re ALDA, actuator, vacuum hoses, etc. that were mentioned and when complete will provide an update here.

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87 300D 265Kmi
Factory rebuilt crate 603.96x engine at 200K