2001 GMC Yukon XL 1500 | SLE, SLT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
FAQ for Muffler Repair
Q: How to install the muffler?
A:
The proper way is to apply lubricant to the exhaust insulators to aid in installation, install the exhaust muffler nuts, and remove the adjustable jack stands.
By Bob
GM Specialist
01/11/2022
Q: How to remove the muffler?
A:
The proper way is to remove the exhaust muffler nuts, install adjustable jack stands under the rear axle, and remove the muffler from the insulators, and the exhaust muffler.
By Bob
GM Specialist
01/11/2022
FAQ for Other Repair Info
Q: How to install the right exhaust manifold?
A:
The proper way is to install the Exhaust Manifold, new gasket and bolts, a new AIR check valve pipe gasket, the AIR check valve pipe (crossover), the EGR pipe, and the spark plugs.
Q: How to install the exhaust heat shield?
A:
The proper way is to install the Exhaust Heat Shield, the exhaust heat shield bolts, and the exhaust muffler.
Q: How to remove the exhaust seal for a vehicle equipped with a 4.3L, 4.8L, or 5.3L engine?
A:
The proper way is to remove the engine shield and the oil pan skid plate if necessary, remove the clip from around the engine harness and the oxygen sensor pigtail, disconnect the connector position assurance (CPA) retainer and the forward oxygen sensor electrical connector, and remove the exhaust manifold pipe seal(s).