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2011 Hyundai SONATA Engine And Engine Cooling Problems, Complaints and Defects

Issue ID	919085
Internal NHTSA #	10457595
Manufacurer	HYUNDAI MOTOR COMPANY
Brand	HYUNDAI
Model	SONATA
Model Year	2011
File date	08/04/11
Component	ENGINE AND ENGINE COOLING
Product type code	VEHICLE
Description of the problem	There is a smell of gas/engine fumes notable in the vehicle on occasion. The problem does not happen consistently, however there are some common factors to when the smell in noticeable. These factors include: 1) the engine must be hot, generally having been driven for at least 15 minutes or more. The smell is never noticeable when the engine is cold, such as after sitting overnight. 2) the vehicle must be either moving at very slow speeds of <25 m. P. H., or sitting still. Examples would include driving through parking lots, sitting at an idle for a long period at a stop light, when first starting the vehicle after sitting in a parking lot for awhile, etc. 3) when the gas / fume smell is notable with greatest intensity, it seems to occur after a hot engine soak of 15~45 minutes at ambient temperatures of 30 degrees fahrenheit or above and in conditions of moderate- to high-humidity. Examples include during periods of heavy fog, rainy days, snowstorms, etc. On occasion, the smell is strong enough that it is no longer comfortable to remain in the vehicle. Rolling down a window at speeds >25 m. P. H. To clear out the cabin air, followed by activating the hvac recirculation button will lessens immediate recurrence the smell to some extent. Finding ways to "mask" the smell are of lesser concern than determining why the smell exists in the first place. The vehicle has been in for this concern twice, with neither trip to the service bay having resolved the concern. While it does not appear to be an issue causing immediate danger (no noticeable fuel leaks or signs of fire), the smell of gas and engine fumes entering the passenger cabin is a bit concerning, both from a potential fire hazard in the future, and/or exposure to carbon dioxide and other noxious fumes while operating the vehicle. I will return the vehicle for a third visit to resolve this concern.
Vehicle Mileage at Failure	1677
Number of Occurences	1
Source of the issue	NHTSA WEB SITE
City and State	ROCHESTER HILLS, MI
VIN pattern	5NPEB4AC8BHXXXXXX
Was vehicle invloved in a crash?	N
Was vehicle involved in a fire?	N
Was incedent reported to police?	N
Was medical attention required?
Was part original equipment?
No. of injured persons
No. of fatalities
Date of purchase	07/08/26
Was original owner?	N
Anti-lock brakes	N
Cruise control	N
Number of cylinders	4
Drive train type
Transmission type
Vehicle speed	25
DoT tire identifier
Tire size
Location of tire code
Type of tire failure code
Was defective tire repaired?
Date of manufacture
Type of child seat code
Type of restraint
Dealer's name
Dealer's telephone number
Dealer's city
Dealer's state code
Dealer's ZIP code

What is Recall?
A recall is when a product is removed from the market or a correction is made to the product because it is either defective or potentially harmful.
What is Failure?
Failure is the state or condition of not meeting a desirable or intended objective, and may be viewed as the opposite of success. Product failure ranges from failure to sell the product to fracture of the product, in the worst cases leading to personal injury, the province of forensic engineering.
What is Defect?
Non-conformance of a car component with the specified requirements, or non-fulfillment of user expectations, including the safety aspects.

Last decoded VIN:

KMHTC6AD9FU228911 PM18E18020AB82566 WAUZZZ8VXGA096402 WBAJK7108JBP70794 WBA5E5104GG074541 MBJK49BT900087270 3GTP2WE34BG329118 WDBUE56X37B166561 2G2WP552971144937 YV1DZ9056B2160345 LBV41FX03RM903544 WBAEP31040PE83971

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2011 Hyundai SONATA Engine And Engine Cooling Problems, Complaints and Defects, Recalls and Failures

2011 Hyundai SONATA Engine And Engine Cooling Problems, Complaints and Defects

What is Recall?

What is Failure?

What is Defect?