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idle problem 200

posted by  Dave Stevens on  Mon Apr 12 12:14 CST 2004
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last visit: Sun Jan 1 02:36 CST 2012
[RELATED]

Is there any chance you're watching the idle with the A/C switched on? Is there any chance your A/C microswitch has fallen apart internally? For an automatic transmission, normal idle (not base idle) for a B230FT with the A/C on is 950 rpm which on a dash tach may well look like 1000 rpm. Additionally, that is for a fully warmed engine as detected by the block temp sensor. That can be aggravated by wiring harness problems due to decayed insulation -a well know problem with mid-80's 240's.
--
Dave -not to be confused with a real expert






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