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View Full Version : WOT not shifting at redline



anf6789
07-27-2009, 09:11 PM
Hey, so usually when i put my foot to the floor my 94 c280 will rev all the way to redline and then shift. Today i was driving it and it seemed to shift like 500-750rpm before redline. Kinda weird. in normal driving the trans shifts fine nothing seems wrong. Only at WOT.

I recently adjusted the throttle cable because for the longest time i had play in the pedal, this got rid of it. after the problem started i put it back to where it was but there was no change in shift points.

another thing(sorry, lol) i was on 676 in philly before it started acting up and my hand slipped on the gear shift and popped it into 2nd accidentally, which in turn revved it all the way up, not to the point of the engine cutting out but pretty high.

My friend thinks it could be like a spring or valve body in the trans. I also recently put on a K and N CAI. maf?

Any info would be great
the car has 142000mi.

anf6789
07-28-2009, 12:29 PM
1-2 shift seems more like 1000rpm difference, is this what you would call a transmission "Flare"

xvvvz
07-28-2009, 08:35 PM
It could be one or more of the things you mentioned. You need to go to the w202 forum at Benzworld and read up on CJShade's posts about adjusting his transmission.

stox
07-29-2009, 05:56 PM
Look up B2 piston problems. A relatively simple repair that a DIY can do.

anf6789
07-29-2009, 05:59 PM
thanks xvvvx, i did some investigating of cjshades posts. I'm pretty sure that adjusting the throttle cable also messes with the Bowden cable. I will see if i can get the cable back to the exact position it was at before.

I guess in order to remove slack from the pedal, you would need to adjust the throttle "and" the Bowden cable. hopefully tommorow i will be able to see if i can fix it.

I'll report back with my findings. Let me remind myself to not touch this car, if it works fine just leave it alone!!

anf6789
07-29-2009, 06:00 PM
stox will do!

anf6789
07-30-2009, 05:11 PM
i think i fixed it. I adjusted the Bowden Cable( which was a pain in the ass) and now it seems to be shifting fine, must of stretched or something.

mykg4orce
07-30-2009, 05:20 PM
can you explain how did this? where is the Bowden cable located? I believe I have done what you did.

okay also reading cj's posts

anf6789
08-02-2009, 08:21 AM
its a red corrugated red cable attached to the throttle.