Warm start trouble...
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Joined: Feb 2004
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From: Nebraska
Warm start trouble...
Hi guys, I'm new here, I have been looking at alot of the posts for help, but I am coming up short. I have a '00 Explorer 4.0 SOHC, I have fixed the cold start idle situation, now when the engine was warmed up or driven for a while, I'll start it back up and the rpms drop down to about 400, then up to normal idle. I may be getting to picky, but I know this isn't right and I don't like the strain it puts on the engine when this happens. I have replaced 3of4 O2's, upper/lower intake gasket, plugs, air filter, and IAC motor. Right now since the battey was disconnected there is no codes, but the last two codes were too lean bank 1 and 2. Any help? I think this might be a problem only when the engine is in closed loop operation?
Last edited by robbyyar; Feb 22, 2004 at 10:48 AM.
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