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-   -   not much power very far after 4,000 rpm (http://www.peachparts.com/shopforum/tech-help/91571-not-much-power-very-far-after-4-000-rpm.html)

WANT '71 280SEL 04-11-2004 02:44 AM
not much power very far after 4,000 rpm
 
The car I am speaking of is a 1987 420SEL. When already underway, if it is floored, the rpms shoot up as it downshifts, but it seems as if the car is hardly accelerating? It feels as if there were a slight hesitation at high rpms. Has anyone else encountered this phenomenon? Feels as if it were maybe starved for fuel just at high rpms?
Thanks
David

william rogers 04-11-2004 03:23 AM
The 420 developes it's peak HP around 5200 so from 3500 to redline should be when the engine really comes on. I would start with a new fuel filter if that dosn't help have a shop or dealer put it on their computer...........

William Rogers.........

WANT '71 280SEL 04-11-2004 03:02 PM
How do I know if my cr has the tandem fuel pumps? i see one fuel pump right by the gas tank and think it is the fuel filter right next to it or is it anohter pump? I can't remember if it had any wires coming our if it.
Thanks
David


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