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-   -   No fast idle 300sd (http://www.peachparts.com/shopforum/showthread.php?t=128072)

oldsmokie 07-10-2005 08:26 AM

No fast idle 300sd
 
I am working on a 83 300sd that has no fast idle when cold. Have checked and lubed the linkage. How does the pump know its cold and how do I go about a repair. I'm sure It has no effect but the Temp guage is broke always on cold.

vwbuge 07-10-2005 09:45 AM

i could be wrong but I really don't think the 617 has a cold idle swithch or function for that matter.

Diesel4me 07-10-2005 12:36 PM

Quote:

Originally Posted by vwbuge
i could be wrong but I really don't think the 617 has a cold idle swithch or function for that matter.


You're not wrong, fast idle comes from applying pressure to the accelerator pedal with your foot. :) Older MB diesels have a knob on the dash for this.

vwbuge 07-10-2005 03:09 PM

I totally forgot about that knob thing. I had an old 300D with one but it didn't work. So used to the SD now.

sixto 07-11-2005 01:02 PM

I don't recall a fast idle circuit in either of my 126 SDs. The idle was fine after a cold start but there was no power for a minute or so. The SDL with electronic idle control behaves the same way the SDs did.

Sixto
95 S420
87 300SDL


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