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EnginePart report

2004 Infiniti QX56 Engine Problems

Complaints
5about this part
Share
5%of 106 total for the year
Median mileage
130,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 5 complaints about the engine of the 2004 Infiniti QX56, 5% of the 106 complaints for this model year. Where a mileage was given, the median is 130,000 miles. 1 of these say a crash was involved, according to the filers.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“The vehicle died when at a stop light and rolled back hitting the car behind us. I looked on your website and apparently it was caused by a faulty engine control module (ECM) in the intelligent power distribution module (ipdm). This appears to have been recalled on all 2004 to 2006 Infiniti QX56 vehicles, however, I received no such notice and Infiniti says their is not recall associated with my VIN number. I believe my VIN number was left out in error and this should be recalled. …”

NHTSA complaint #10761546, filed 2015-09, 130,000 miles

“Emergency brake: e-brake appears to engage on its own and the brake light indicator comes on. There's also a grinding sound when brake is pressed. Grinding sounds only occurs when this issue comes up. Exhaust manifolds: was notified by the dealer upon a service inspection that there was a small crack in the exhaust manifolds. Is this a normal thing? And should this be a recall item as it could throw off any smog check testing. In addition how about the exhaust in the cabin issue? Maybe they used too thin of a metal for the manifolds.”

NHTSA complaint #10876675, filed 2016-06, 183,000 miles

“The contact owns a 2004 Infiniti QX56. The contact stated that exhaust fumes were emitted into the vehicle. The vehicle was taken to the dealer where the technician diagnosed that the exhaust manifold was cracked and needed to be replaced. The manufacturer was made aware of the failure. The vehicle was not repaired. The failure and current mileage was 130,000.”

NHTSA complaint #10569437, filed 2014-03, 130,000 miles

“The contact owns a 2004 Infiniti QX56. The contact stated while driving approximately 40 MPH, all of the interior lights started to blink on and off, all of the gauges spun around and the vehicle stalled. The contact mentioned that after several attempts the vehicle restarted. The failure recurred several times. The vehicle was taken to a dealer for diagnostic testing. The technician diagnosed that the ipdm module needed to be replaced. The vehicle was not repaired. The contact was made aware of recall NHTSA campaign id number: 10v517000 (engine and engine cooling). …”

NHTSA complaint #10660479, filed 2014-11, 142,000 miles

Related service bulletins

Engine: other model years

YearComplaintsShare of year
20131959%
20122442%
20113747%
201014%
200836%
200668%
200523%
200455%

Other parts of the 2004 Infiniti QX56

Brakes
65 complaints
Electrical system
16 complaints
Air bags
10 complaints
Fuel system
6 complaints
Engine cooling
5 complaints
Visibility (wipers, defrost, mirrors)
5 complaints
Steering
4 complaints
Body and structure
4 complaints
Transmission and drivetrain
4 complaints
Other or unknown
3 complaints
Seats
3 complaints
Suspension
3 complaints

← All problems reported for the 2004 Infiniti QX56

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology