Infiniti Q45 stalling problems

Filed May 5, 2021 · Acceleration, Engine · 186,241 miles · GA

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

Filed Nov 29, 2017 · Engine · 150,000 miles · GA

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 the federal safety agency campaign number: 03v455000 (engine and engine cooling). The failure mileage was approximately 150,000.

Filed May 8, 2017 · Engine · 111,000 miles · NM

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.

Filed Aug 8, 2016 · Electrical, Engine · 61,000 miles · CA

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.

Filed Sep 25, 2015 · Engine · 112,000 miles · CT

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. Dealership claims they cannot address the problem because no error code appears. Other than this problem, this auto is in excellent condition and should perform satisfactorily for many years to come. There was a recall (infiniti r3021) that addressed these exact problems, but the dealer service manager claimed that this car was not included. This problem is a serious safety hazard and there should be some way this can be fixed. Similar, if not exact, complaints for this exact model infiniti have been posted on the internet with owners indicating outrageous frustration with the infiniti manufacturer. When there are multiple complaints indicating exact problems, the fault certainly lays with the manufacturer. Is there something that can be done?

Filed Mar 31, 2015 · Engine · 94,000 miles · NY

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.

Filed Sep 29, 2014 · Engine · 100,000 miles · IL

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 the federal safety agency campaign id number: 03v455000 (engine and engine cooling). The manufacturer was notified of the failure. The approximate failure mileage was 100,000.

Filed Mar 23, 2014 · Electrical · 100,000 miles · MD

I have a 2003 q45 and the car has shut off while driving several times. There is has in the car. I get it maintenance regularly. Its shut off while driving on the highway putting my family at risk. Its not safe to drive. After doing online searches I determined that a lot of people are having this same issue with this make and model. Please research this issue because I am terrified to drive this car. If there is an issue with electronic chip, infiniti should have to replace it. Thank you

Filed Jun 15, 2013 · Brakes, Driver assistance · 110,202 miles · GA

Bought 2003 q 45 in spring 2007, still under warranty. June 2009 at 79,000 miles the engine was replaced (under warranty). 6/30/09, 80,081 miles car problem with no acceleration and service engine and cruise control light coming on. Problem didn't reoccur until june 2012 when engine suddenly cut off while driving. Would restart in neutral but in a week or so it did it again on the interstate at about 55. Fortunately was in right lane and could get to emergency lane before someone ran into me. Car restarted. Continued like this until 6/29/12 when repaired, only it continued to stop and the cruise control/traction lights would come on and car would suddenly stop and then surge forward. 8/11/12 serviced for same problem. 8/14/12 same thing, car stopped then surged, then the engine cut off and lost steering/brakes. Infiniti service again, this time installing new electronic control module ($ 1600). The dealer kept this car for several days and a mechanic drove it until it happened several times. The mechanic or someone at infiniti dealer told me it was a "death trap" and it is. A few weeks later going around a roundabout, the engine turned off and lost steering. Put in neutral and restarted. Couple of months later, engine turned off while driving. Friday june 7, 2013 I pulled onto busy highway, drove a mile and engine suddenly stopped. Before I could get in neutral to restart, a dump truck nearly rear-ended me. Got it restarted, then the cruise control light came on, car stopped again and then surged forward. I have contacted infiniti and internet searched. There were many infinitis with this problem in the years 2002-2003, though roswell infiniti said there were no recalls for this problem on any infiniti yesterday. This is a very dangerous situation, and infiniti acts like they know nothing about this problem.

Filed Nov 5, 2010 · Driver assistance, Electrical · 111,000 miles · AZ

My 2003 infiniti q45 repeatedly stalls [so far, 15+ times] and often will not restart [10+ times]. With my family and me in the car, the stalling of the car puts us repeatedly in jeopardy of a rear-end collision or vandalism or bodily injury in dangerous areas. The car is properly maintained on its service schedule. It took my mechanic a week at a cost of $90 to confirm that the problem is the engine control module [ECM], the 'brain' of the car which controls other vehicle sensors, and this was confirmed by the infiniti dealer at a cost of $150. The ECM was sent to texas for reconditioning and reprogramming, but is being returned because the ECM is irreparable. The cost to buy and reprogram a new ECM from infiniti, the only source, is $2000 for a vehicle with 100,000+ miles. But a new ECM will likely have the same problems as the ECM being replaced. I do not want to put my family in repeated jeopardy. There is no assurance that the new ECM will work properly. I am suspicious that the infiniti ecms contain numerous design flaws. I have had numerous problems, aside from stalling, with the existing ECM, including door locks automatically locking with the key in the ignition so that I am locked out, the locks not unlocking, etc both my mechanic and infinity were unable to diagnose these problems until it became clear that I had a malfunctioning ECM. There was a recent massive recall of nissan and infiniti ecms, but the infiniti q45 was excluded, even though the symptom of repeated stalling is identical to my car, except that, worse, I also often cannot restart the vehicle.