At 10:00 PM 7/2/00 -0400, you wrote:
> <snip> I drove the truck about 275 miles
>today,and it finally quit bogging down on the way home,during the last
>20 miles or so.I can be driving along,going up a hill in overdrive with
>A/C on at 70 or so,then it happens. Usually when I`m passing
>someone. Outta nowhere,it`ll start "sagging",and just losing power. First
>I turn off the A/C,doesn`t really help,then I lock out the OD,still
>losing speed,then I kick it down WHOOOOOOOOMMM,and the guy I`m passing
>is thinking,"What`s he got under the hood there,a 3 cylinder?" WHAT IS
>CAUSING THIS? Anyone have the slightest idea?Thank you for any response
>on this. Steve P. sick 3.9
Only thing that I can think of is to check that each fuel injector
is within spec. Maybe read each spark plug's condition for a clue.
Otherwise, you would need a scanner capable of storing pcm and sensor
outputs (pulse width, O2 sensor, advance, tps, map, cam sensor, etc.)
when it occurs in order to see what is actually happening.
Bob
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 11:52:31 EDT