(1) This is normal (to an extent) as the system is going from a Cold-Start/Open
Loop operation into normal/closed-loop. There will be a slight "hiccup" on
higher mileage vehicles during this time...especially on 5-speed vehicles.
(2) Change the coolant temp sensor as they do corrode after a while and will
give slower warm-up readings (or sometimes too warm at cold-start causing
a "hiccup")
(3) How old are your O2 sensors?
- Bernd
>
> I know that this has been covered but wasn't having any luck in the
> archives. My '96 hesitates when it is cold. After driving for a mile or
> so it's fine but I cannot seem to find what may be causing this. The cap
> and rotor are new and the plugs have around 5k on them. The plug wires
> are the MSD super conductors and have around 15k on them. I also have a
> stumble at idle cold or warm that I have been trying to get rid of for a
> long time. I checked all of the wires and such but no luck. I even
> started the night in pitch black to see if there was any arching and
> there was none. I am guessing a sensor but need a little more help. I
> figure the camshaft one but figured I would ask here first. BTW, the
> truck absolutely does not ping. For a little further info I am running a
> 180 t-stat and that works fine also.
>
> Jeff Durling
>
>
This archive was generated by hypermail 2b29 : Fri Feb 06 2004 - 11:46:28 EST