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#1
08-12-2009, 11:05 PM
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Car won't accelerate! 0-60 in 1 minute...
(1988 Mercedes-Benz 560 SEL US Spec - 147k Mi)
Intermittently when I get into my car after it has been sitting overnight or after work, my car starts up okay, but when I attempt to pull away, the car just crawwwls. Putting the pedal to the floor the car doesn't kick down or accelerate like it used to. Now it's like slowly chugging along until I get to cruising speed where I hit the cruise control. What could this be? What should I check? I have new spark plugs, fuel filter, ready to go. Also, today on the highway to work my cruise control malfunctioned and propelled the car to over 80MPH with my foot on the brake and attempting to slow the car down. Thanks for any insight. I am going to pick up some ATF from autozone and lube up the throttle linkages. Last edited by Firewater; 08-13-2009 at 07:40 AM. 
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#2
08-13-2009, 12:07 AM
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what kind of car is it??
__________________
1994 C280 2009 VW Tiguan 1993 Toyota X-tra Cab SE-5 1973 220D  ... Gone, but not forgotten1991 Alfa Romeo 164L  Gone, wife MADE me forget it2006 Hyundai Tucson... just straight out FORGOTTEN! 
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#3
08-13-2009, 12:39 AM
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Yikes, the cruise should disengage instantly when the brake is applied. I'd surely be disconnecting the electrical connector to the actuator under the hood until I could figure out whats wrong with it!
__________________
-diesel is not just a fuel, its a way of life-  '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k)
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#4
08-13-2009, 06:34 AM
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>>I am going to pick up some ATF from autozone and lube up the throttle linkages. << You must be an ex DC-cop from the 70's. They would always pull into the gas station and do exactly that. Or maybe you just had the same Ford LTD???
I will also apply my psychic powers to predict that you have a 190E with the M103 engine that needs the control pressure cable adjusted and a new cruise control amp.
__________________
Prost! 
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#5
08-13-2009, 07:39 AM
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Haha, sorry guys, I thought this info was displayed :/ it is a 1988 560 SEL US Spec.
Oh and the ATF is actually reccomended by the W126 service manual. Although being an ex-DC cop sounds like a cool alter ego.
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#6
08-13-2009, 08:51 PM
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Ignoring the cruise control for the time being, you should check the transmission cable adjustment first, adjusting to zero slack, and check/replace the kickdown switch under the gas pedal. Also, make sure the vacuum hoses are connected an not leaking - they get brittle after awhile.
__________________
Prost!
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#7
08-14-2009, 07:58 PM
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I've seen similar symptoms when the plastic gas pedal breaks into two pieces. Check your gas pedal and see if it is still in one piece. The part that hooks to the metal rod likes to break off, and you push the pedal to the floor and nearly nothing happens. It may look fine from above, so check underneath it.
__________________
-tp 1990 300SE "Corinne"- 145k daily driver - street modified differential - PARTING OUT OR SELLING SOON - PORTLAND OR. AREA - PM ME FOR DETAILS 1988 560SEL "Gunther"- 190K passes anything except a gas station 1997 S420 - 265k just bought it with a rebuilt trans. Lovely condition
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