Indirectly this is MB diesel related....Woman has an 84 Volvo diesel wagon. Mechanic rebuilds injection pump. Now car dies at EXACTLY 4500 ft. elevation. Roll the car back down the road a few hundred ft. (i.e. road length, not elevation) and car starts fine. Click and Clack thought fuel leak or some problem with rebuild....but had no idea what the problem might be.

Any thoughts?

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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 159k miles
06 E320 CDI "Rutherford", Black on Tan, 178k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 145k mi, wastegate conversion, ALDA delete

19 Honda CR-V EX 75k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife