Vehicle Speed Control Problems of Jaguar XJ8

An incident with the vehicle occurred sometime around christmas 2011. The motor surged while I was fully stopped at a street light. The motor was running, the car was in drive gear, and my foot was on the brake. I was able to quickly bring the car under control. A second event occurred in 2012, may 15th, at 11:00 p. M. While I was fully stopped at a drive through window. Again the motor surged, this time with a loud screeching sound. I applied maximum brake pressure but the car continued to surge forward, approximately six feet. I sustained full force pressure to the brake, threw the car into neutral gear, and turned off the ignition in order to stop the car. I immediately drove it home where it has remained parked---except for two excursions to the sacramento Jaguar dealership service department.

See all problems of the 2004 Jaguar XJ8 🔎.

The contact owns a 2004 Jaguar Xj8. The contact stated that the vehicle exhibited abnormal acceleration three times when applying the brakes. In order to stop the acceleration, the vehicle would be shifted into neutral. The vehicle was not inspected for the failure and was no longer being driven. The failure and current mileage was 115,000.

The contact owns a 1998 Jaguar Xj8. While traveling 70 mph the contact released his foot off of the accelerator pedal and noticed that the vehicle had suddenly shut off without warning. The vehicle was not diagnosed and 2 years prior the vehicle was taken to the dealership where the throttle body was replaced. The failure mileage was 62000 and the current mileage was 68000.

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The contact owns a 2005 Jaguar Xj8. The contact stated that while driving approximately 40 mph, the vehicle suddenly stalled without warning. The vehicle was towed to the dealer for a diagnostic test. The technician stated that the throttle gasket would have to be replaced. Approximately two years after the repair, the contact was driving approximately 60 mph when the vehicle suddenly stalled without warning. The vehicle was towed to the dealer for a diagnostic test. The technician stated that the fuel pump would have to be replaced. The vehicle was repaired. The approximate failure mileage was 53,000. . . Updated 09/04/12 the consumer stated in 2009 the throttle body was replaced; however, the dealer invoice lists park brake fault. The park brake was not repaired. In July 2012, the vehicle was towed to the nearest mechanic who found the inertia switch had engaged without the vehicle having been in an accident. The dealer then replaced the fuel pump but, did not repair the inertia switch. Updated 09/12/2012.

See all problems of the 2005 Jaguar XJ8 🔎.

The contact owns a 1998 Jaguar Xj8. The contact received a manufacturer notification regarding service action number s514 (closed throttle operation). The manufacturer provided a no charge remedy under the customer satisfaction program. The letter was received approximately one year ago. The authorized dealer was notified in January 2010 for the service repair. However, the service action number s514 expiration date was December 30, 2009. The contact was displeased to know the expiration date was not disclosed on the notification letter. The failure mileage was unknown.

While stopped at a red light, foot on brake, shift in drive, vehicle went into very high rate of acceleration and lunged uncontrollably forward. Luckily there was no vehicle in front of me as I would have crashed into it. I notified the dealer and he referred me to a local dealer. The vehicle was inspected and I was assured that they found nothing wrong. This was a very scary situation and the manufacturer should seriously look into the matter.

The contact owns a 1998 Jaguar xjv8. While driving 65 mph, the vehicle decelerated and then came to a complete stop. The contact restarted the vehicle and the limp home mode feature displayed on the instrument panel. The limp home mode feature would not allow him to drive the vehicle more than 15 mph. The dealer has not inspected the vehicle. The contact received the following two recall notices in March of 2007: recall # 99v138000 (power train:automatic transmission) and recall # 98v022000 (vehicle speed control). The dealer stated that they would not repair the vehicle as part of the recalls because the contact would first need to repair the transmission. The VIN was unknown. The current and failure mileages were 80,000.

Over the past six (6) months, the vehicle has stalled on the highway approximately 4 times. Had to drift onto the shoulder, put vehicle in park to start car again. That is a very dangerous situation to be on an interstate traveling at a speed of 50 and above having to drift across lanes with absolutely no power. As of this past weekend, I started the car, the airbag light would not go off. The next day, the car was making a horrible noise and once again the airbag light was on. The noise sounded as if something was loose underneath the hood. The car sounded so horrible, I had it towed versus driving it to the shop. I got the bad news that the engine has no compression and needs to be replaced. The mechanic has no idea what went caused this. I will have to get another engine or let the mechanic break the current engine down to see what parts can be re-used. I read on another website that a few people had to have engines replaced on the 1998 Jaguars for no apparent cause. This is ridiculous and no fault of mine. I have kept up the maintenance. . Read more...

Contact states while driving her vehicle on the express way approximately 75 mph vehicle completely shut down. There has been a recall issued on the throttle body. This was replaced. The contact was still having problems, the throttle body has been replaced 4 times. The service dealer stated there wa slow cylinder compression, and that the engine needed to be replaced. Another mechanic stated that the throttle body was still the problem.

While parking the vehicle it accelerated. Consumer turned the vehicle off to stop. At the second occurrence consumer was at a complete stop when the vehicle accelerated causing it to strike the vehicle in front. Dealer was unable to find any defects.

Recall remedy failed. After the recall for the throttle was performed the recall defect happened again. Recall campaign# 98v022000. Jaguar stated that the they were not responsible for any further corrective action. The vehicle continued to stall. (more frequently) in other attempts to remedy the stalling problem, the dealer would reprogram the ecm (electronic control module) and suggested that the vehicle was fine. The software fix recommended by Jaguar had not corrected the problem. The consumer also stated that a chirping noise would occur upon deceleration. The front brake shroud was adjusted. Jaguar investigated and changed an idler pulley and the serpentine belt but the chirping noise was still present. The problem was diagnosed as a bad differential at 80k miles.

Car repeatedly stalls at highway speeds. Car must be pulled over with no power and restarted.

While traveling on the freeway at speed of approx. 60 miles per hour the vehicle lost the ability to accelerate and coasted to a stop. Fortunately I was able to pull over and restart the car. The loss of power resulted in a very dangerous situation on one occasion as I was stuck between a cement truck in front and a car carrier to the rear. I definitely feared for my life. After the third event I contacted rusnak Jaguar in pasadena and they told me the problem was due to carbon buildup in the throttle body and the solution is to remove the throttle body and clean and readjust. I had this work done on the 50,000 mile service at a cost of $200. I was told this problem is only on the 1998 and 1999 models and that a "fix" came on later models. I believe a recall is in order on this car.

Problem with vehicle's throttle plate. Consumer experienced this failure twice while traveling on the highway. Vehicle completely lost all power. The first repair failed after the year warranty expired on the throttle plate. The second repair failed and the consumer had to replace the throttle part for $1800.

Vehicle stalled and coasted to a stop while driving at 65 mph. Pushing the accelerator during this time was totally ineffective.

1998 Jaguar Xj8 periodically stalled for no apparent reason while driving at highway speeds.