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380SE idle speed very high
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simon
Apr 9, 2002, 2:12:51 AM4/9/02
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Anyone an idea as to why my 1984 226000 mile old 380 SE has just
started to 'idle' at something like 2000 - 2500 rpm ? It has only just
started doing this after running quite fine for the 33000 miles I've
put on it. any ideas greatly appreciated.
Simon.
started to 'idle' at something like 2000 - 2500 rpm ? It has only just
started doing this after running quite fine for the 33000 miles I've
put on it. any ideas greatly appreciated.
Simon.
Tiger
Apr 9, 2002, 8:53:21 AM4/9/02
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It is most likely your idle speed control box (computer) that needs to be
replaced... Buy a rebuilt one for $125. Located in between your two engine
firewall in the middle... black box.
replaced... Buy a rebuilt one for $125. Located in between your two engine
firewall in the middle... black box.
Bill Ditmire
Apr 9, 2002, 12:07:56 PM4/9/02
to
>It is most likely your idle speed control box (computer) that needs to be
>replaced... Buy a rebuilt one for $125.
>replaced... Buy a rebuilt one for $125.
Best to diagnose first, THEN fix it. Otherwise, you will run out of money
before they run out of parts. Likely areas to TEST:
1. Clean the idle speed air valve- they get gummed up and stick in opne
position from oily crankcase fumes. Cost- free.
2. Check power and ground for the idle speed computer. Correct as needed.
3. With the engine idling (too high of course) tap un and wiggle the idle speed
computer top see if that changes it. Last, take the idle speed computer out of
its casing, and resolder the connections at the pinout. Then try it again.
Bill Ditmire
Ditmire Motorworks,Inc.
425 White Horse Pike
Absecon,NJ 08201
http://www.ditmire.com
609-641-3392
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