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Surging 3.3 at idle or when slowing
Having another problem with my 1993 Grand Voyager with a 3.3. No fault
codes other than a 12. Sometimes while waiting at a signal, the idle speed will increase for a second or two, causing the vehicle to lunge forward to the unsuspecting driver. It has also done this when slowing down too. It does it with the A/C on or off, so I don't believe that it is the idle speed being adjusted to compensate for the A/C compressor coming on. 02 sensor was replaced, along with the throttle body being cleaned 3000 miles ago. Any ideas welcome. After having had the transmission rebuilt last week, I don't want any other expensive repairs. Thanks, KM |
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Surging 3.3 at idle or when slowing
> wrote in message ups.com... > Having another problem with my 1993 Grand Voyager with a 3.3. No fault > codes other than a 12. > > Sometimes while waiting at a signal, the idle speed will increase for > a second or two, causing the vehicle to lunge forward to the > unsuspecting driver. > > It has also done this when slowing down too. > > It does it with the A/C on or off, so I don't believe that it is the > idle speed being adjusted to compensate for the A/C compressor coming > on. > > 02 sensor was replaced, along with the throttle body being cleaned > 3000 miles ago. > > Any ideas welcome. After having had the transmission rebuilt last > week, I don't want any other expensive repairs. > > Thanks, > > KM > A scan tool to see what the sensor values are at the time it happens, could be a MAP or TPS voltage problem or anything else for that matter Glenn Beasley Chrysler Tech |
#3
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Surging 3.3 at idle or when slowing
On Jul 31, 1:44 pm, "maxpower" > wrote:
> > wrote in message > > ups.com... > > > Having another problem with my 1993 Grand Voyager with a 3.3. No fault > > codes other than a 12. > > > Sometimes while waiting at a signal, the idle speed will increase for > > a second or two, causing the vehicle to lunge forward to the > > unsuspecting driver. > > > It has also done this when slowing down too. > > > It does it with the A/C on or off, so I don't believe that it is the > > idle speed being adjusted to compensate for the A/C compressor coming > > on. > > > 02 sensor was replaced, along with the throttle body being cleaned > > 3000 miles ago. > > > Any ideas welcome. After having had the transmission rebuilt last > > week, I don't want any other expensive repairs. > > > Thanks, > > > KM > > A scan tool to see what the sensor values are at the time it happens, could > be a MAP or TPS voltage problem or anything else for that matter > > Glenn Beasley > Chrysler Tech I don't have a scan tool, but will be taking it to place that does. I will have them start with those two things. Thanks, KM |
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