WONT ACCELERATE PASSED 70-75 MPH

  • Tiny
  • The Muffler Man
  • 1992 Mercedes Benz 190e
  • 258,243 miles

And if I put it to the floor it starts to bog-out. Also, my dist. Rotor sits passed #1 cyl. Halfway to the next.

Compression good, new fuel filter, plugs, cap n rotor, fuel press. Good. I also adj. My air/fuel mixture and now it idles high. Start-ups fine idles great just too high and no misfires. PLEASE HELP THK YOU.

Friday, February 17th, 2012 AT 7:08 AM

3 Answers

  • Tiny
  • rasmataz
  • Member

You probably have to disconnect something before you adjust the idle speed-the idle speed should be controlled by the computer-also look for a vacuum leak

Was this
answer
helpful?
Yes
No
Friday, February 17th, 2012 AT 8:57 AM
  • Tiny
  • The Muffler Man
  • Member

Now it won't accelerate passed 35-45 mph, it also has hard starting when it's cold and I checked my manifold vaccum pressure and it fluctuates at idle and during acceleration, (vibrates).

Was this
answer
helpful?
Yes
No
Saturday, May 5th, 2012 AT 9:38 AM
  • Tiny
  • massimo
  • Member

YOU PROBABILITY HAVE A CLOGGED CAT Y SEE THIS BEFORE ALSO CHECK FUEL PRESSURE AND MAKE SURE THAT THE RETURN LINE IS FREE GOOD LUCK AND ALSO IF IS THE ONE WITH TWO FUEL PUMP MAKE SURE ARE BOTH RUNNING

Was this
answer
helpful?
Yes
No
Thursday, May 10th, 2012 AT 2:45 AM

Please login or register to post a reply.

Similar Questions