1GKEK13T73J118156
2003 GMC Yukon
Vehicle Summary
The 2003 GMC Yukon is a robust SUV equipped with a 5.3L V8 LM7 Iron engine, delivering ample power through its 4WD system. With multipoint fuel injection and a gross vehicle weight rating of up to 7,000 lbs, this versatile vehicle offers both strength and stability. Manufactured by General Motors in Janesville, Wisconsin, the Yukon is part of the 1500 series, making it ideal for both family and utility purposes.
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2003 GMC Yukon
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Complete Specifications
Known Issues for This Vehicle
Oil consumption issues
The 2003 GMC Yukon with the LM7 Iron V8 engine is known for higher than average oil consumption, which can lead to frequent oil top-ups and potential engine damage if not monitored.
Intake manifold gasket failure
The intake manifold gaskets on these engines can degrade over time, leading to coolant leaks and potential engine overheating.
Fuel pump failure
The fuel pumps in these vehicles are prone to failure, which can cause starting issues and engine performance problems.
Knock sensor failure
The knock sensors in this engine can fail, leading to performance issues and potential engine damage if not addressed.
Transmission issues
Though not an engine problem per se, the transmission in these vehicles is known to have issues, which can affect overall drivability.
Catalytic converter failure
The catalytic converters in these vehicles can become clogged or fail, leading to poor engine performance and increased emissions.
