The 2001 GMC Yukon has a V8 engine.
The 2001 GMC Yukon-XL has a V8 engine.
The 2001 GMC Yukon has a 4.8 L base engine size.
The 2001 GMC Yukon's engine produces 275 hp @ 5200 rpm.
The 2001 GMC Yukon-XL has a 5.3 L base engine size.
The 2001 GMC Yukon's engine produces 290 ft-lbs. @ 4000 rpm.
If the check engine light is blinking that means an engine cylinder misfire has been detected
The 2001 GMC Yukon-XL's engine produces 285 hp @ 5200 rpm.
The 2001 GMC Yukon-XL's engine produces 285 hp @ 5200 rpm.
The 2001 GMC Yukon-XL's engine produces 325 ft-lbs. @ 4000 rpm.
5-6 quarts
The blinking means there is a condition that is causing damage to the converter. The cause would need to be troubleshooted.