Author Topic: Engine dies when put in forward gears  (Read 4105 times)

xcashewx

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Engine dies when put in forward gears
« on: February 16, 2009, 01:40:55 »
engine runs fine, i have the idle set at around 800 in "P", when i put it in reverse it drops slightly to around 750 rpm but in drive it drops drastically to the point where it barely runs. i noticed that the linkage moves a little when in R but when put into 4 it doesnt move at all. could this just be the oil pressure switch on the transmission not working? if so where can i find a new switch

ja17

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Re: Engine dies when put in forward gears
« Reply #1 on: February 16, 2009, 04:31:31 »
Hello,

Yes there is a separate pressure switch on the transmission for reverse and forward.  They are hexagon shaped and have a single wire with a metal pressure line. One is  on each side of the transmission.  I am not sure which is which. Try switching the wires to see if the problem switches also!  There is a bit of info on these in the "linkage Tour"
http://www.sl113.org/forums/uploaded/ja17/20061116233433_12.3.JPG

Take care,

Joe
Joe Alexander
Blacklick, Ohio
1969 Dark Olive 280SL
2002 ML55 AMG (tow vehicle)
2002 SLK32 AMG (350 hp)
1982 300TD Wagon turbo 4spd.
1963 404 Mercedes Unimog (Swedish Army)
1989 flu419 Mercedes Unimog (US Army)
1998 E430
1974 450SLC Rally
1965 220SE Finback

Naj ✝︎

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Re: Engine dies when put in forward gears
« Reply #2 on: February 16, 2009, 08:43:08 »
68 280SL