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What causes a Mercedes E430 to hesitate under hard acceleration?
Irickjim
COUPLE OF GUESSES. NUMBER 1 WOULD BE POSSIBLY A FUEL RELATED ISSUE, PLUGGING UP YOUR INJECTORS. COULD TRY SOME TECHRON IN THE FUEL TANK WITH A HARD DRIVE, OR TRY FLUSHING OUT ALL THE INJECTORS, THEN DRIVE IT HARD. NUMBER 2 WOULD BE A MASS AIR FLOW SENSOR, BUT WILL MOST LIKEY CAUSE YOUR CHECK ENGINE LIGHT TO COME ON. answer it sounds like your plug leads are breaking down under load or the airmass meter is gone i work in merc main dealer
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