Automatic Transmission Problems of Infiniti I35

Once our car passed 70,000 miles we began to have various problems. First we had to get a new transmission, which was followed by fixing the intake and upper vacuum. Now there might be a crack in the vacuum which is causing the vehicle to not operate properly.

See all problems of the 2001 Infiniti I35 🔎.

1) traveling at high speeds 50-60 mph for a considerable time frame, one-two hours. On a highway with stop lights-when trying to stop, my Infiniti I35 (yr. 2002) accelerates while I am trying to brake. The car lurches foward with the engine going from 1500 rpm to 7000 rpms. The incident repeated itself later on 8/16. We were traveling from baltimore to virgina on route 50--good road accomodating high speeds but has lights as one passes through eastern shore towns. The car was towed to infinite's nearest dealership in va beach. According to that dealer's shop, no error messages or issues were reported per their computerized testing. According to them, their road tests , two tests, a drive for 15 minutes and the other was to get the car's speed up to 80 mph on an in-shop rolling machine, revealed no errors. My contacting Infiniti's national consumer affairs office resulted in no tangible assistance. The dealer drove the car to baltimore, 8/20/04 and reported no problems. Interstate 95 was used (its not the same as route 50 with high speeds and frequent, quick(er) stops. The car is not working and needs to be corrected; it is dangerous. Infiniti will not proceed since computerized analysis reports no error messages. In June, 2004, we had taken the car to jba of ellicott city complaining that the car was demonstrating problems: at stop signs, on occasion, the car would not move forward, the engine would race, then the car would lunge forward. That dealership again commented that there was no problem registering on its computer testing, therefore, no problem. It seems that the firm's testing methodology isn't either comprehensive enough or limited to only computer analysis. The car has a defect and this firm can't or won't reach out of the box to try and solve it, excusing any effort on their part because their computer results disclose no "error message".

See all problems of the 2002 Infiniti I35 🔎.

Vehicle will pull to either right or left when driving at any speed. Vehicle becomes more difficult to control. Dealer said all front wheel drives pull to one side or another like that. Consumer states vehicle is experiencing front end shaking, rattling, stepping, and vibrating, steering wheel pulls and making noise while accelerating and making u-turns, right side tire stepping and vibrating, seat memory buttons inoperative, dash display changes by itself from dte to mpg and computer displays 80 miles to go when the tank is empty, engine shakes and vibrates during a cold start, vehicle idles rough when cold and is still present after vehicle is warmed up, vibration/rattling noise from windows at freeway speed and no longer raise up when depressing remote button, vehicle hesitates when pushing on gas pedal, and when in reverse, the gear shakes.