Another '98 E300 rough idle
I replaced fuel lines, pre filter, main filter and shut off valve o ring recently. Now the engine run rough when hot.
I can see air bubbles in the line from the lift pump to the SOV. When shifted from park to drive the bubbles stop and the engine runs smooth.
I am scratching my head why tranny position is affecting this.
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If it's not fun, it's too much like work.
98 E300 TD 176k miles Greasecar Two Tank
Stock prefilter/fuel thermo bypass w/ Napa prefilter
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