I have a 05 avalanch it takes for ever to fill up. is there a breather or something plugged? if so where would it be located? also it clicks in the steering wheel whan you turn both ways? it has a 5.3 in it and low kms

Nathan, 2 Knock's are located under intake manifold.
Check the attached links,
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How To Install Replace Engine Knock Sensor 2000 06 5 3L Silverado Sierra...

Knock sensor 5 3 4 8 6 0 replacement

05 Chevy Avalanche Knock Sensors

4 8 5 3 6 0 knock sensor replacement GM

ah, its on the tranny. (where else?)

or RTM read the manual
here

https://suzukipitstopplus.com/Products/1035-2008-forenza-reno-service-manual.aspx

on new cars they moved it,
why
so the fiddlers (zoners and too fast lube goons) are forced to do it right. ask for right. or read it in the FSM.
all this is a product of long warranties.

here is a common problem with these trucks. The fuel tank evap canister vent becomes plugged. ( it's a sealed poly tank ) This can cause your fuel tank to be sucked in causing damage to the tank, Fuel level sensor ect. If you hear a sucking sound when you go to refuel its a good idea to have this checked. This happens all the time on oilfield trucks. In many cases the vent has been moved to a different location to prevent this from happening. many people have complained of this exact same thing on this exact same truck. If you are able to afford a good mechanic, He will know what to do if you print this answer or tell him this information. good luck... Tim

You'll have to drop the tank to find out, it could be the filler hose or one of the hoses connected to the fuel sender assembly. Another possiblity is if you mounted something in the bed section with self tapping screws you may have punctured the tank.

Hello, Its probably something simple like an obstruction in your breather tube located right beside your fuel inlet tube or your inlet tube itself being plugged with something foreign. Very rarely is it your vapor canister.

depends, some of them have a little red cap underneath where the breather box is on the top of the transmission, if not youve got to jack the car up on the drivers side, take the wheel off, and you will see a fill plug there, you put an extention end in it to take it out, or just a plain 3/8 ratchet. should be close to where the axle comes out.

if it has a drain and a fill plug remove the fill plug and (I use my finger) stick the tip of something in it about an inch if you touch fluid its full. When your changing the fluid on a diff that has one plug you will need to **** the fluid out with a vacuum pump, **** until no fluid comes out. then add fluid with a fluid pump until you have alittle over flow. If your diff has 2 plugs remove top plug first ( to make sure you can add fluid, and its not seized up.) then drain the fluid by removing the bottom plug. Replace the bottom plug add fluid with a pump until full ( you will no its full by the presence of over flow.) then replace the top plug

your charcoal canister has came apart and blocked the fuel vent system

it sounds like you have an obstruction in the filler tube or it may have colapsed take it off and replace it

i had the same problem, its the torque converter. I took my 05 c/a in because i was having shifting problem, the long and short of it is there is a breather on the tranmission that sucks in water from the road. the water and the atf dont mix. the dealer put in a torque converter and changed the fluid and installed a redesigned transmission breather.