[W126 Coupe] W124 Idle issue

[Steve Nervig]

On Jul 5, 2006, at 8:26 PM, mavris2 at comcast.net wrote:

> Hey guys,
>
> My 93 300ce Sportline just had the wire harness replaced.  I got  
> the car back and well it is having idle surge problems now. It did  
> not do it on the first day I got it back.  It started acting up on  
> day two.  The car did not have this problem with idle prior to  
> this. But then again I dont drive the car maybe 200 miles per  
> year.  I know thats my problem right lack of driving! HA
>
> They replaced the wire harness and OVP, clutch fan and serpinteen  
> belt. .  I have since taken the car back, but am wondering what  
> could be causing this fluctuation in the idle?  Im just not looking  
> forward to them calling as saying its "XYZ" and it'll cost $$. This  
> is a very good shop with a mechanic of 18 years experiance.   But  
> Im just baffled at this.   The car has only got 84K on it.
>
> Any ideas?
>
> Thanks
>
> Jason

Rubber hoses and idle air tubes come to mind. They get brittle with  
age and heat. They may have disturbed something when they replaced  
the harness. I'd also make sure the throttle linkage is clean and  
well lubed with ATF.

Steve

--
I feel so much better now, since I gave up hope.