History:
>From: rfkoth@meq1.ra.rockwell.com@INTERNET on Fri, Jan 24, 1997 12:17 PM
>I replaced the thermostat. Now the temp gauge is actually reading , with
>needle at about 1\3 way up. Still getting the same trouble codes
(12,15,17,55), however,
>and the "bucking,missing" problem is getting progressively worse. First
>started a week ago, and only did it once in a while. Now its to the point
>that it is almost undriveable. Guess I'll try the coolant sensor next.
>From: Dave Clement-LDC009 >Date: Friday, January 24, 1997 1:38PM
>The trouble codes do not just go away. Disconnect the battery for about a
>minute, that will clear the codes (you will still get 12 & 55). If you
still
>get the 17 code then the coolant sensor could be the issue. The sensor that
>the computer uses will trip the check engine if you disconnect it where as
>the sensor that runs the gauge will not (the gauge will go to the bottom -
>cold - when disconnected).
Here's the latest:
Replaced the speed sensor ($57), and was going to also replace the coolant
sensor, but unable to locate a dealer that had them in stock. Parts stores
didn't carry it either. So I cleared the trouble codes, and now only get the
12 & 55 as expected. However, truck is still doing the same thing, so it
appears the speed sensor isn't the problem, (wish I had thought to clear the
codes first, I probably could have saved the 57 bucks). The truck seems to
act up worst for the first five miles or so, and then gets a little better.
In light of this, should I still replace the coolant sensor just to be sure
(have to order it @ $33), or is that going to be a waste of time & $ ??
I have gotten some responses that suggest the distributor needs to be
"re-indexed". What does that mean, and how?? Other ideas??
Thanks,
Russ Koth, 93 Sport 3.9V6, 2wd, 5spd
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