Thanks for the picture. Where is it located? I assume somewhere
under the massive air cleaner. What are the connections? are the
small ones electric terminals or vacuum? If the small ones are
vacuum, then what are the large 90degree openings to? Intake air?
I thought I was told that the OVP relay played into this somehow?
Where is the OVP relay on a 85 380SL? near the fuel pump relay under
the passenger kick panel? I think it was OVP and another relay
Where is this idle speed motor that Fred referred to?
Once this afternoon while i drove it, the idle briefly acted like it
was going to act correctly when i took it out of gear, then went back
fast again immediately.
You're right on Fred... most likely an issue with the idle control.
The idle valve looks like this:
http://www.autohausaz.com/secure/PartImages/0001411225.jpg
Take a look at it and all the rubber hoses that connect it. Anything
dried or up cracked should be replaced. Most likely, it all needs to
be replaced, along with all the rubber vacuum line fittings. This is
a good place to start and might cure lots of running issues with the
car. The parts are not too expensive and you just replace each part
one at a time to avoid mixing things up. Note that the vacuum line
arrangements are different from model year to model year, so if you
get a diagram, make sure its for a 1985 US model car only.
I believe if you remove the idle valve and rotate it back and forth
in your hand, you should hear the valve inside open and close. You
can try cleaning it out with your favorite spray stuff and see if it
helps. My experience is that it doesn't work for long if you do clean
it.
There is a controller for the idle valve, but I'm not too familiar
with the specifics.
The factory service CD will be very helpful to you in diagnosing this one.
Jaime
On Fri, Sep 24, 2010 at 2:36 PM, Frederick W Moir
<fred.s...@verizon.net> wrote:
D'head.
Air leak, or stuck idle control motor?
I know nada about the 380SL's fuel system.
Fred Moir
Lynn MA
Diesel preferred.
On 9/24/2010 1:27 PM, Dieselhead wrote:
this car seems to idle very high when it is in neutral. It is like the
high idle never goes to normal idle. When you start the engine, it goes to
about 2000 rpm and stays there. When you put it into D or R, the engine
slows enough to be ok. I did not check the tach, but I would say 750 to
1000. as soon as you take it out of gear, the RPMS go up to 2000.
Thoroughly warmed up engine...
I think I heard once that this is an electric problem to do with one or
two relays. Can anyone point me to the right relays?
No, blipping the throttle does not get it off the high idle. EVER. TIA
Still 85 380SL
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_______________________________________
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For new and used parts go to www.okiebenz.com
To search list archives http://www.okiebenz.com/archive/
To Unsubscribe or change delivery options go to:
http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
_______________________________________
http://www.okiebenz.com
For new and used parts go to www.okiebenz.com
To search list archives http://www.okiebenz.com/archive/
To Unsubscribe or change delivery options go to:
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