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#1
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Stiff Accelerator Pedal
My accelerator pedal is very stiff. Is there an adjustment or spring that can be adjusted to make it a little less firm to push? Its an 85 300D.
thanx
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Bob 03 ML320 99 C230K 85 300D 164K 93 190D 2.3 (sold) 62 220S (sold) 58 220S (sold twice -- a long story) |
#2
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Inspect the begining of the throttle linkage in the engine compartment. Sometimes the ball on which the linkage moves becomes brittle with age and do not function as they should.
This part is screwed on to the firewall directly infront of the driver side, kindof behind the IP. U would need to unscrew ( 2 screws, I believe it is an 8mm socket) the part to inspect the ball that is behind a triangular plate ( about 3 inches long - 2 inches high ). Trace it on from there. |
#3
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Quote:
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DJ 84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012 |
#4
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First, did the issue creep up or was it there all along?
If it was there all along or present after some work on the car, then I suggest you re-do all the linkage. When I say re-do I mean check each for proper movement (both smoothness and correct distance of pull) and proper length for each linkage component. Don
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1980 300TD-T (82 Turbo and Trans) 159,000 Miles "Jackie-O" 1983 300SD 272,000 Miles "Aristotle" 1987 Jeep Wagoneer Limited - keeps the MB's off the ice and out of the snow 1994 BMW 530it |
#5
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Same trouble here... I feel like I need to put 50 lbs of force on the pedal sometimes when going along to get it and keep it at the position I need for highway cruising. I have checked the connections at the firewall, cleaned out all the linkage connections and relubed them with ATF, and have had no success...
When I changed the vacuum valves on the valvecover, I noted that the part that turns to actuate the valves must have some sort of pivot, and there is no indication that it has ever been serviced. I have to wonder if it could make the movement harder... Has anyone tried fixing/lubing that? JMH
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Current Diesels: 1981 240D (73K) 1982 300CD (169k) 1985 190D (169k) 1991 350SD (113k) 1991 350SD (206k) 1991 300D (228k) 1993 300SD (291k) 1993 300D 2.5T (338k) 1996 Dodge Ram CTD (442k) 1996 Dodge Ram CTD (265k) Past Diesels: 1983 300D (228K) 1985 300D (233K) |
#6
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Not too long ago I took some white grease and lubed every joint and pivot in the linkage and it seemed to help somewhat. There may be something on the IP itself that may need to be lubed but I haven't really looked at it too closely.
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DJ 84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012 |
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