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PeachParts Mercedes-Benz Forum (http://www.peachparts.com/shopforum/)
-   Diesel Discussion (http://www.peachparts.com/shopforum/diesel-discussion/)
-   -   Flare between first and second (http://www.peachparts.com/shopforum/diesel-discussion/380622-flare-between-first-second.html)

sixto 09-06-2016 10:20 PM
Hmm... flares only above 1/4 throttle sounds like when a throttle rod clip broke and the VCV wasn't connected to the throttle linkage. Does the VCV lever move with the pedal?

http://www.peachparts.com/shopforum/..._dty5915h4.jpg
Sixto
83 300SD

Frank Reiner 09-06-2016 11:32 PM
Quote:
Originally Posted by ottojd (Post 3634045)
The speed is about 15 mph and it only flares if I have it above 1/4 throttle. Like if I stand on it to enter a road form a sidestreet, it flares real bad. If I manually shift through the gears I can get it not to flare.
If I start in 2nd gear it still flares, but does not when I manually shift to third.
Should the highlight be understood to mean that an automatic upshift from 2nd is accompanied by a flare? If so, then what you are experiencing is a 2-3 flare, rather than the 1-2 flare which you had initially indicated as happening.
If you manually shift 1-2, 2-3, and 3-4, are there flares?

ottojd 09-07-2016 06:17 AM
Doesn't the transmission still start in first gear when 2 is selected and just not go to three?
Like I said, I can go through the gears without flaring if I shift manually.

ottojd 09-07-2016 07:12 AM
Actually, I take that back.
It flared on the way to work today when I manually shifted from S to D. So...I guess this is a 2-3 flare of which there is much to explore searching the forums...
Thanks for all the replies and sorry about my ignorance...

spock505 09-07-2016 07:47 AM
Quote:
Originally Posted by ottojd (Post 3634045)
The speed is about 15 mph and it only flares if I have it above 1/4 throttle. Like if I stand on it to enter a road form a sidestreet, it flares real bad. If I manually shift through the gears I can get it not to flare.
If I start in 2nd gear it still flares, but does not when I manually shift to third.

Exact same as mine with 722.4 box.

Have a read of this thread http://www.peachparts.com/shopforum/diesel-discussion/379453-k1-k2-b1-722-4-valve-replace.html

..narrowed it down to B1 valve or modulator which I have yet to do..


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