2004 Chrysler Pacifica: adaptive cruise control problems

Filed Sep 7, 2014 · Acceleration · 138,825 miles · PA

While leaving a on ramp to us route 15 s. I accelerated to wot(wide open throttle) in order to merge into traffic. Once I reached 60 MPH I pushed the set button on the cruise control as I left off of the accelerator pedal. The vehicle continued to accelerate instead of holding the 60 MPH speed. I slowed down by pushing on the brake pedal, but once I left off of the brake pedal the vehicle continued to accelerate. I tried the cancel button for the cruise control and also the on/off button, but nothing worked. My wife reached over and pulled the floor mat back to make sure it was not the mat and it continued. I placed the shifter in neutral and the RPM's were at 3500. I turned the ignition switch off and I coasted. I then restarted the vehicle and the rpms immediately went to 3500 and then dropped to 750. I am an ase certified master technician and this is the first time I have experienced this in a vehicle. I am glad I was driving and not my wife. Once I reached my destination I disconnected the cruise control cable at the throttle body. Since this vehicle is a cable operated throttle body my only conclusion is that either the throttle plate stuck, which it is currently moving smooth, or the cruise control is having issues. I am planning on taking it to work in the morning and trying to diagnose it. I have been repairing cars professionally since 1992. Starting in a ford dealership for 8 years, then being self employed with my own auto repair business until my current position in an independent repair facility (AC delco tss shop) for the past 11 years.

Filed Jun 7, 2012 · Acceleration, Airbags · 120,000 miles · DC

Starting in 2011 my pacifica's electrical systems seem to be shutting down. First I lost the ability to open windows or use power locks on the passenger side. Next I lost the cruise control function. Now my check engine light appears intermittently. Most recently the air bag light and alarm comes on but only intermittently.

Filed Aug 29, 2011 · Airbags · 80,000 miles · OH

Tl* the contact owns a 2004 chrysler pacifica. The contact stated that while driving approximately 35 MPH, the air bag light illuminated on the instrument panel. In addition, the horn and the cruise control were not functioning. The vehicle was taken to an independent mechanic and the mechanic stated that the clock spring failed and would have to be replaced. The vehicle was not repaired. The approximate failure mileage was 80,000.

Filed Sep 14, 2010 · Airbags · 97,000 miles · MI

1 SRS clock spring failure 97,000 5 /yr. Results: air bag would not deploy (SRS light illuminated) , no horn, cruise control unexpectedly cuts out or does not work at all. 2 all of above remain disabled until clock spring is replaced. Air bag is extreme safety issue in the event of an accident and horn is extreme safety issue necessary to avoid hazardous situations while driving. Http://www.motortrend.com/roadtests/oneyear/112_0412_2004_chrysler_pacifica/index.html motortrend reports this failure twice in the 1 yr test and review of vehicle. Clock spring is ongoing issue for chrysler since 1998. 3 replace clock spring harness, old part available.

Filed Oct 13, 2008 · Acceleration · 55,000 miles · GA

Cruise control would slow during a strain then over time completely quit working. The vacuum hose has been replaces around 3 times and another part once. The cruise control has quit working once again.

Filed Jul 18, 2007 · Engine · 19,600 miles · AZ

After having no problems with the 2004 chrysler pacifica for nearly 2 years, all of a sudden over the last 2 weeks it has begun to stall at inappropriate times. The first time I was slowing down for a car in front of me it just died. The next 2 times it happened while I was on the interstate using cruise control at 70 MPH. The next time I was on the interstate without cruise control. Today, it happened while I was idling in park, engine fully warmed up. Each time all dashboard lights went out, and the key was in switch but not on. I was able to immediately restart the vehicle by turning ignition to on without having to stop and without having to shift out of drive. At first, I thought maybe I was hitting key with my knee, I was a bit tall, but this last time, my leg was nowhere near the ignition. I have a kill switch alarm system, but no one has been able to determine the source of my problem.

Filed Jan 3, 2007 · Acceleration, Electrical · CA

The contact states that batterywas leaking acid. When this happens it disabled the cruise control.

Filed Mar 10, 2006 · Engine · 29,000 miles · OH

I was driving the car on the highway with the cruise control set at 70 MPH and the car stalled. I was able to pull off on to the shoulder where the car came to a stop. Warning lights lit up on the dashboard including a message to service tires soon. The car would not re-start at first. After 5 minutes, the car re-started, but then stalled again when I accelerated. The car was then towed to the nearest dealership where they found nothing wrong with the car. The car was returned to me without anything being replaced.

Filed Dec 8, 2005 · Electrical · MD

On at least 3 occasions since purchasing a 2004 chrysler pacifica as a used vehicle in jan. 2005, my husband or I have inadvertently hit the ignition switch with our knee and turned off the engine while driving. One occasion while we driving on the highway at 65 MPH when my husband moved his foot from the accelerator after turning on cruise control. The other two incidents have been at low speeds in our neighborhood while moving foot from the accelerator to the brake pedal. Design defect that needs to be corrected.