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From: "UFO" <techforce@nospam.gmx.com>
Newsgroups: rec.autos.tech
Subject: 1998 Ford 4.2L V6 idle issue
Date: Thu, 19 Jun 2025 17:58:32 -0400
Organization: i2pn2 (i2pn.org)
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Just got a 1998 Ford F150 with the V6 / Auto about 100K miles. Not sure when 
its had a tune up, but occasionally at a light the idle will reduce as if 
its about to stall, then it recovers.

Recently I let the vehicle sit a few days without a start and it started up 
fairly quick, but soon the idle slowed down quite a bit again, nearly 
stalled.

Some internet research says it could be an EGR valve and other things like 
the coil pack module?

I was gonna try some STP fuel injector cleaner maybe as a start....any good 
resources out there of this engine?