[sstrickstein]

my 1991 had that problem occur after a high speed run on the freeway. same as you describe. I sprayed carb cleaner in to throttle body at 2000 rpm. I used about 1/2 can. If you look at the mouth of the throttle body you may see that the throttle plate is gummed up. after doing this everything was great.

Steve

 

[sstrickstein]

spray it good

When I came off the highway the idle was "hunting" up and down between stall speed and 2000 RPM. I sprayed 1/2 can into the throttle plates with the air cleaner taken off and it degummed the throttle body and returned a normal idle(750rpm). I ran the car while doing this with a helper keeping the speed to about 2000 rpm . I used about 1/2 can to insure that the entire system got clean. I also put 1 bottle of fuel injector system cleaner through a tank of gas. I work at a Dodge store. We do this type of cleaning to fuel injected cars all the time. I checked with the Mercedes dealer before doing it. They perform this type of service as well. Within a few days of doing this service I did as well:

replaced plugs
replaced plug wires
replaced distributor cap and rotor
changed the oil and filter
changed the transmission fluid and filter
replaced the air filter
replaced the brake fluid
replaced the power steering fluid
replaced the power steering filter

I noticed a complete change in personality in the car. Although this car was in good shape I have learned from my work that do not trust any system on a used car you have not serviced yourself. By doing this service my cars acceleration and gas milage got much better. The idle problem is just the cars way of telling you "I need Love". Pay attention to it and you will be glad.

Good luck

Steve

 

[sstrickstein]

Well,

Go to the local autoparts store and get a can of Carb cleaner. Spray into the t...

Well,

Go to the local autoparts store and get a can of Carb cleaner. Spray into the throttle body as I spoke of. If you have a broken spark plug wire: GET A NEW SET [email protected][email protected]#[email protected]#@#@#. This more than likly is the problem!

STEVE