Yukon Falling apart

[demarco39730]

2011 GMC Yukon SLT 4x4

So to start this off took my truck to the mechanic I had spark plugs changed fuel injectors changed the coils and wires changed I still have a miss I know that the engine has a lot of miles at 250,000 miles I talked to one mechanic today about the miss he said that I probably have to change out the cam or perhaps the valve need changing out but he wouldn't know anyting until he did a compression test my first mechanic told me that I possibly have to change out the lifters

Secondly it's a hundred degrees outside in the AC just went out in this truck the compressor is coming on I just changed out the blend door still no air anyone out there have any ideas on what I need to do on the air and this misshttp://cloud.tapatalk.com/s/5f0cf6abcdb09/20200709_073919.mp4

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[GreyStone]

when you say no air - do you mean it blows warm air? or no air comes out of the vents at all?

 

[demarco39730]

when you say no air - do you mean it blows warm air? or no air comes out of the vents at all?

It blows only warm air I replaced the blend door actuator

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[gooffeyguy]

Is the AC belt still on the pulley?

These trucks have a seperate belt just for the AC

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[Derick]

If that's 'falling apart' then I'd be happy to trade you a nicely used 162k mile suburban 2500.

 

[demarco39730]

Yes the belt is on

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[Doubeleive]

but did you change the correct blend door?
and is the ac getting cold under the hood? let it run a little bit and then feel the lines one should be warm and one should be cool

 

[demarco39730]

but did you change the correct blend door?
and is the ac getting cold under the hood? let it run a little bit and then feel the lines one should be warm and one should be cool

I changed the one on the passenger side yes one side is cold the other is warm

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[demarco39730]

If that's 'falling apart' then I'd be happy to trade you a nicely used 162k mile suburban 2500.

I'll pass

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[Doubeleive]

I changed the one on the passenger side yes one side is cold the other is warm

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have you looked to see if the blend door moves when you adjust the ac control? does the rear get cool? you might also have a bad sensor in the headliner if it is the digital controls