How much to replace a catalytic converter on a 2003 yukon denali

SOURCE: replacing the catalytic converter on 2002 GMC Yukon

From LustyKid:

What may appear to be correct, can actually be INCORRECT. If you removed without touching the other two components, you definitely have the WRONG ONE.

Personally, I have never heard of having to remove torsion bars or oil pans to replace catalic conv.
If still in doubt. Let MIDAS do the job. Save yourself aggrevation. Unless you are really handy which you appear to be since you were able to remove it. Installing would be the reverse, provided you have the correct part. Suggest you take your vin number next time to the place where you bought it, they should be able to give you the correct one. If not, replace with OEM. Aftermarkets sometimes cause vehicle to fail emissions test. Goooooooooood Luck!

SOURCE: how check relay window in my yukon denali 2002,

Look for bad wires. There may also be a bad door module. Most don't have relays anymore, just modules.

SOURCE: locting the throttle position sensor on a 2003 gmc

The throttle position sensor is located on the throttle body. Which is in the front of the intake manifold.

SOURCE: where is the coolant temperature sensor located in a 2003 yukon

It is best to allow the engine to cool down for about 3-hours before starting this job. This is for safety and convenient reasons. It also helps to minimize the loss of coolant. Coolant draining into the environment should be avoided.
After the engine cools down, disconnect the negative terminal of the battery.

Location: The Denali's engine coolant temperature-sensor is located (threaded) into the cylinder-head just above the spark-plug. It is good thing to remove the spark plug wire in the coolant temperature-senor's immediate area. This will allow more room to work it out.

It is removed by first undoing its electrical plug, and then using a deep socket with wrench to loosen the coolant temperature-sensor.
Once done, verify that the electrical connector is replaced in its proper location. Then coonect back the negative battery terminal.

Testimonial: "Thanks!"

SOURCE: How do I remove and replace the power side mirror

2003 GMC Yukon - My power mirrors stopped working.... all fuses have been checked and they are all good. Any ideas? These are the power folding mirrors. The function that allows you to fold them in for car washes etc still works.... they just will not adjust when you change drivers, or when you try to adjust them with the controls. Any ideas would be appreciated!