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Engine coolingPart report

2003 Infiniti I35 Engine cooling Problems

Complaints
27about this part
Share
29%of 93 total for the year
Median mileage
80,000miles
Trend
StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.

NHTSA recorded 27 complaints about the engine cooling of the 2003 Infiniti I35, 29% of the 93 complaints for this model year. Where a mileage was given, the median is 80,000 miles. 1 recall campaign on record is filed under a similar system.

Example complaints

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

“We were driving locally at normal speed and the car suddenly lost power as though we ran out of gas. We were able to slide somewhat to the side of the road. After a while, the car started again and we thought it was just some kind of fluke. We are senior citizens and do not drive a great deal however we thought all was well and in august we road on the highway 95 to connecticut and the exact same thing happened after we arrived and were pulling into a local mall, once again we had to be towed. If this had happened to us on 95 we would have been killed. …”

NHTSA complaint #10544405, filed 2013-09, 100,250 miles

“I was driving on the parkway with my family and I was traveling at approx 60 MPH. Out of no where a tcs and ABS light came on the I decreased to 5 MPH without warning and couldn't go faster. I had my foot all the way down to the pedal and vehicle wouldn't drive. This appears to be a camshaft sensor issue from what I see. There was a recall on this issue but I'm being told my vehicle was not an affected car. Others have all had the same happen with this same vehicle and I find it strange that because our VIN numbers weren't recalled that we are out of luck. …”

NHTSA complaint #10491481, filed 2013-01, 135,000 miles

“I was driving my car at 35mph when suddenly the engine stopped without any warning. All the indicator lights got illuminated at that point. That time I was able to get my car stared again. Later same day it happened again. In the mechanic shop I was told that the camshaft sensors have to be replaced. I paid more than $600 for two new sensors,and than I find out that there was a recall in december 2003, campaign # 03v455000. Am I eligible for a reimbursement? Mileage on the odometer is 39350 and the old parts are available.”

NHTSA complaint #10296636, filed 2009-12, 39,350 miles

“For the last year the engine of my 2003 Infiniti I35 has been making a noise upon acceleration (while the engine is under stress) especially on inclines. I have brought the vehicle to pepe Infiniti, they've duplicated the noise, yet they haven't done anything to rectify the problem although the vehicle is still under the manufacturer's warranty. I have contacted the Infiniti corporate office to no avail. I am filing a complaint to hopefully get some resolution regarding this matter.”

NHTSA complaint #10160890, filed 2006-06, 40,000 miles

“The car suddenly loses throttle control under normal driving conditions; the engine return to idle speed . I was driving on the expressway and all of a sudden the check engine light came on and the car started slowing down. I pressed on the gas pedal all the way down but the car refused to accelerate. I managed to pull over and stop the engine. And then restarted the car and it seemed to work ok for a while and then did it again. I managed to get it to the dealer and it has been there since while they try to figure out why this is happening. This problem started happening about a year ago. …”

NHTSA complaint #10311512, filed 2010-02, 84,100 miles

Related recalls

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
2004514%
20032729%
20021420%

Other parts of the 2003 Infiniti I35

Engine
44 complaints
Electrical system
13 complaints
Vehicle speed control
10 complaints
Air bags
8 complaints
Electronic stability control
8 complaints
Other or unknown
6 complaints
Transmission and drivetrain
5 complaints
Brakes
4 complaints
Fuel system
4 complaints
Seats
1 complaints
Steering
1 complaints
Body and structure
1 complaints

← All problems reported for the 2003 Infiniti I35

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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