1. Home
  2. Chrysler Cars
  3. Surging 3.3 at idle or when slowing

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

Reply to
kmath50
Loading thread data ...

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

Reply to
maxpower

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

Reply to
kmath50

MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.