Infiniti Q45 Engine problems by year

The circuit board for crank position sensor and cam position sensor have improper solder joints. This has caused the service engine light to come on, the engine may not start, power reduces, engine stalls at a traffic light or while in motion, on a city street or highway or while making a turn. This is also a common problem with the 2002 infiniti m45, q45; 2003 infiniti i35, m45; 2003 nissan altima, maxima, murano, sentra. There are 11 consumer complaints, 3 investigations and 33 service bulletins regarding this issue with the 2003 q45. Infiniti/nissan recall # 03v455000

Tl* the contact owns a 2003 infiniti q45. While driving 35 mph, the vehicle stalled and the service engine warning indicator illuminated. The contact was able to restart the vehicle after several attempts. The vehicle was taken to an independent mechanic where it was diagnosed that the camshaft position sensor failed and needed replacement. The vehicle was not repaired. The dealer was not contacted. The manufacturer was made aware of the failure and informed the contact that the vin was not included in nhtsa campaign number: 03v455000 (engine and engine cooling). The failure mileage was approximately 150,000.

Tl* the contact owns a 2004 infiniti q45. The contact stated that while driving at 40 mph, the engine stalled while the service engine soon warning light and another unknown light illuminated. The vehicle was able to restart. The contact stated that the vehicle failed to accelerate after the failure occurred. The vehicle was taken to an independent mechanic where it was diagnosed that the cam position sensor failed and needed to be replaced. The vehicle was repaired, however the failure recurred. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 111,000. The vin was not available.

Tl* the contact owns a 2003 infiniti q45. While driving various speeds, the engine stalled without warning and all power was lost. After several attempts, the vehicle was able to restart. The failure recurred randomly. The vehicle was taken to a dealer where the failure could not be determined. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 61,000. Updated 11/29/16*lj the consumer has since traded the vehicle. Updated 12/06/16.*Jb

Start car first thing in the am. Driving normal. Within 5 miles engine shuts off without warning. Loose all power. No code appears. Auto will not start. Finally starts after 5 or 6 tries. This problem has continued to occur every two or three days over the last six months. But auto starts immediately after. Auto and transmission are not performing properly. Now the engine stall while driving is happening on a daily basis. Auto has been checked out at george harte infiniti, west haven, ct at least five times....

I own a 2003 infinity q45 and without warning this vehicle stalls where ever it wants at a light while you driving on a major highway on a major street no warning what so ever and infinity is aware of the problem but they only want to help certain vin numbers. I took my family skiing to scranton pa and on interstate i80 the car stall without warning my entire family could have been killed. Please do something about this is a big issue and before someone gets hurt or killed someone should help. *Tr

Tl* the contact owns a 2003 infiniti q45. The contact stated that while driving at 30 mph, a noise emitted from the front of the vehicle. The vehicle was taken to a dealer. The technician diagnosed that the fan belt and power steering belt needed to be replaced. The vehicle was repaired. In addition, three months later, the vehicle failed to start. The vehicle was taken back to the dealer. The vehicle was not diagnosed or repaired. The failure recurred on numerous occasions. The manufacturer was not notified of the failure. The failure mileage was 92,000. The vin was unavailable.

Tl* the contact owns a 1998 infiniti q45. The contact indicated that the service engine sensor illuminated and there was a loss of power. The contact stated that the vehicle stalled on several occasions. The contact was able to restart the vehicle after several attempts. The vehicle was taken to an independent repair shop who was not able to replicate or diagnose the failure. The contact was not included in recall nhtsa campaign id number: 03v455000 (engine and engine cooling). The manufacturer was notified of the failure. The approximate failure mileage was 100,000.

I was driving and dashboard lights came on, then vehicle cut off on the highway. I assumed it was a bad alternator, but it was a defective crank sensor. *Tr

Tl* the contact owns a 2003 infiniti q45. The contact stated that while driving 35 mph, the steering wheel seized and there was a sudden loss of power. The vehicle was able to restart and resumed to normal. The failure occurred on three occasions. The dealer repaired the vehicle but the failure recurred. The manufacturer was not made aware of the failure. The failure mileage was 80,000 and the current mileage was 97,000.

Sometime after I purchasing the above vehicle in november, 2001, the engine would fail to start without recharging the battery. After recharging, the vehicle would exhibit no malfunction and operate normally for extended periods of time. This condition would reoccur infrequently, and has since manifested itself by showing no charging from the alternator. Infiniti identified this problem with a recall begun on 03/15/2002, as a defective diode damaged in manufacture. This action is identified as nhtsa action #...

In march 2008 my 2002 infiniti q45 would not start, had it towed from fayetteville, nc to infiniti dealer in raleigh, nc. They r/r starter assy to resolve issue at no charge, old part not available. On 5/15/08 my car would not start, had it towed from fayetteville to infiniti dealer in raleigh. They r/r starter assy to resolve issue at no charge, old part not available. On 7/26/08 car would not start again. Had it towed from fayetteville to infiniti dealer in raleigh. They said motor burned out due to ignition...

RECALL WAS NEVER PROPERLY TAKEN CARE OF. *TR

Tl* - the contact stated that she had purchased 1992 infinity q45 on 02/2006 ,and on 12/21/06 the contact's vehicle was involved in a crash. The contact stated that the vehicle steering was difficult to handle. The contact stated that she has had problems with the transmission leaking. The dealership that sold her the transmission, and engine had to replace them, , and t the vehicle needed several other repairs as well. The dealership sold her the vehicle that was not safe. The contact stated that on numerous occasions she was not able to remove the key from the ignition. *Ak

1 - There is up to a two second delay when quick acceleration is required. At times it feels as if the engine completely stalled. 2 - The vehicle often will not downshift to slow the vehicle on a hill. I could be in 5th gear at around only 1800 rpm, and when I downshift twice, it will not go to 3rd. I often have to downshift up to 6 times for it to respond and switch to third. I need to take my eyes off the road to constantly check if I'm in the gear I select. 3 - The parking/emergency break will not hold...