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Rough Idle Only When Warm 200

posted by  Aye Roll on  Wed Sep 22 15:03 CST 2004
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last visit: Tue Oct 14 21:08 CST 2014
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Replace the thermostat in the air filter box so the engine can breathe cool air as it's supposed to. If that's stuck over to the "warm" side, it could be frying the AMM too. It may already be dying from what you describe. Some cars will run ok with it off or disconnected, but that often means it's bad or going bad. I was able to get a good used one for a friend's 1990 245 this summer for $75. The unit you have is the "016" part (last 3 digits of the part number). If you decide to get one, avoid rebuilts. New Bosch, or good used only.

You're on the right track, though you might need more work on vacuum leaks, such as an intake manifold gasket, and/or fuel injector seals.

Good luck!
--
Rob Bareiss, New London CT ::: '87 244DL/M47- 230K, 88 744GLE- 220K, 82 245T-181K Also responsible for the care and feeding of: 88 745GLE, 231K, 87 244DL, 239K, 94 855GLT 189K






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New Rough Idle Only When Warm [200]
posted by  Toddlie  on Wed Sep 22 13:52 CST 2004 >


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