help please 380se high idle

[lowrider67383]

hi every one
i have a 1984 380se and when i start the car
it idles way to high even when its been running for quit some times

and some times its idling just fine

any ideas or suggestions

i looked at all the linkage


just found this fourm

 

[teky]

inner cable sticking rusty/damaged internaly, return spring on throttle body too weak, throttle flap dirty and sticking,,,

 

[lowrider67383]

thank you for the info i will check it all out

 

[Francois]

If you search the forum for "SEC idling" you will find a threat that has a lot of information regarding this.

Ussually it is the idling computer or the idling valve.

Have a look and please let us know what you find.

 

[lowrider67383]

thanks i will search

 

[lowrider67383]

well i searcherd thru all of the threads and i did find a 380 thread butt it had no response ---so im gonning to do as all of you suggested


does any one know where the idle control vavle is on a usa 380se ???


thanks to all

 

[squirrell]

check out all the obvious causes first,

Electronic idle control unit is usually mounted behind the glove box W107
model.

Idle valve and control unit usually fail together. (faulty air slide takes the control unit out).

The system will need correct testing and diagnosis to be sure.

 

[lowrider67383]

thanks squirrell
also i just found a post from rastpution

in the same general problem

 

[teky]

idle control valve/rotory idle adjuster is on the throttle body

http://uk.msnusers.com/autodatabase/testarea.msnw?action=get_message&mview=0&ID_Message=629

 

[lowrider67383]

right on thanks for the info

to hot here in cal usa ill get to it when it cools down

 

[teky]

once you hace located it the unit can easly be tested 1st test is when the ignition is turned on and off without starting the car the valve can be heard with a click eack time the keay is turned on, 2nd test disconnect valve multi plug and use a volt meter see if battery power is given between terminals 2 and 4 if no power check wireing between terminal 2 and fuse 14 ( terminal 15 ) alternativly check wireing from terminal 4 to earth for continuity, if voltage does exsist opperate the idle valve bridge terminals 2/4 and 4/5 for a max of 5 seconds. the rotory idle valve should work now you should hear an audible sound when ignition turned on this means the control unit is duff replace it, if the vals doent work check wireing between valve and control unit

 

[lowrider67383]

i will do teky

also here in the usa where i live we have these salvage yards on wrecked mb from 70's to 80's i can easy go and grab a few parts for about 5 us dollars i dont know if they have the same in uk ??

i was just there 2 days ago for a whiper switch and a crome piece for the 84
and seat belts and lighter for the 71

thanks again

you people are great
Andrew in Fresno Ca uas

Mrfatboy559@aol.com

thiscoorsforyou@aol.com