Question about 1998 Mercedes-Benz C-Class

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Loosing power at cruising speed

1998 merc c class 250 td accelerates fine, get to cruising speed and pulls back, get rev counter sweep but will accelerate to another speed. changed fuel filters and tried injector cleaner. After a while will run great, untill you turn the engine off and re start.

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Have you had the transmission flushed? it seems to be caught in a limbo. where the calibration of the speedo and the transmission are not compatable. Now as wierd as that seems it happens usally like when going up a hill if you have a manual trans. and cruise locked in. it cant hold that speed and moves to a different speed if you dont down shift. Or perhaps your cruise control cable is slipping. is it vacume over mechanical? pop the hood and make sure all your hoses to cruise control are tight and no leaks.

Posted on Apr 04, 2009

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