Why is the AC not working on my GMC Envoy?

Learn if it’s a simple fix or time to seek out a trusted technician. Not your vehicle? Why Isn’t My A/C Working? What are common reasons my GMC Envoy has air conditioning problems?

Where do I find the leak diagram on my vacuum?

Any vacuum-leak safari should start out with one important tool in hand: a vacuum-hose diagram. It might actually be placarded in the engine bay. If not, look one up in the service manual or consult an online service such as AllData.

How to find a vacuum leak-smoking out vacuum leaks?

Keep hunting until you’ve found them all. 1. Start a vacuum-leak smoking expedition by plugging up any obvious potential ports in the intake manifold, starting with the inlet to the throttle body from the air cleaner. 2. Connect the smoke machine’s nozzle to the manifold. One good place is the large-diameter vacuum line to the brake booster. 3.

Learn if it’s a simple fix or time to seek out a trusted technician. Not your vehicle? Why Isn’t My A/C Working? What are common reasons my GMC Envoy has air conditioning problems?

What should envoy run temp be when AC is not on?

Overheating when AC is on. Envoy run’s one tick below 210 deg. when AC isn’t on but once it’s on it goes up 3 tick’s above 210 deg. before I started having problem’s last summer it always stayed at 210deg. Had a shop look at it more then once last year and they changed my T Stat to one that I didn’t want.

Why does my GMC Envoy stall in traffic?

I have a 2004 GMC Envoy and came onto the problem of the car stalling when stopped in traffic while in gear. This suddenly happen to my vehicle after I had to changed the battery, although this didnt occur to me until after I solved my problems.

What are the problems with a 2005 GMC Envoy?

1 Air Compressor for Rear Air Springs May Fail 470 people have reported this 227 2 Fuel Level Sensor Failure 380 people have reported this 214 3 AC Blower Inop Due to Failed Resistor 273 people have reported this 121 4 CD Player In Radio May Fail 175 people have reported this 85

Do you need an OEM Service Manual for envoy?

Only use AC mounts, the aftermarket is very hit or miss, biased to miss, on damping the 10 Hz frequency at idle. He did say he replaced the mounts with OEM. Need GMT360/370 Service Manuals?

Is there an issue with the envoy’s rough idle?

No Codes Having an issue with a rough idle condition, goes away at about 700 rpm. Accelerates fine and top end is fine. Just a pronounced misfire at about 500 rpm. Cleaned TB, run BG44k through tank. Cleaned Camshaft actuator solenoid. Was clean even after 200k, first time I’ve pulled it. Pulled plugs, look fine.

Why does my GMC air conditioner stop working?

For about 5 miles the A/C worked normally till we hit a R/R and the bump made it stop blowing cold air and he was finally convinced. Back to the shop and 30 min later they found the problem. Turned out to be the low pressure switch, (under hood on bottom of small tank) it was corroded and causing a loss of electrical contact.

Why does my AC keep blowing hot air?

Recently when running the AC, it will randomly begin blowing hot air instead of cold. No matter what I try, the only proven way to get cold air to blow again is to shut the engine off, wait around 5 seconds, then crank back up. After doing this everything seems to work fine for a week or so…then the AC starts blowing hot air again.

Why does my Chevy Silverado keep blowing hot air?

From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. I would check the charge in the system. You might be just a little low on refrigerant. (Low enough to intermittantly trip the “Low-pressure” switch.)

Why does my GMC Envoy not blow air?

Here’s a few you can book directly with. Battery died and changed out battery and all efforts to fix the ac vents failed. Will not blow out front vents, only floor and defrost positions. Numerous tries to reset and will not work. Air conditioner won’t blow from dash vents but will from the back vents have tested the blower motor and works great.

Is the air conditioner blowing from the back vents?

Air conditioner won’t blow from dash vents but will from the back vents have tested the blower motor and works great. And checked cables but nothing else is working

Why is no air coming out of the top vents?

I changed the battery and the air stopped coming out of the top vents works only through the defrost vents and the floor. The inside climate adjustment always shows 50 degrees but when it’s rainy or humid it goes down into the negative numbers then shows on the dash ice possible.

What to do if your air conditioner is not working?

Replacement of most air conditioning components requires complete evacuation of the air conditioning system with a refrigerant recovery machine. Once components are re-installed, the technician will remove all air from the system in preparation for recharging the system with new refrigerant.

What does it cost to replace a GMC Envoy blower motor?

The HVAC blower motor may stop working at one or more speeds due to a faulty blower motor resistor block. Our technicians recommend to confirm the resistor is at fault by first checking the operation of the switch. The average cost for a GMC Envoy Blower Motor Resistor Replacement is between $117 -$128.

What is code b0263 on GMC Envoy?

This 2003 GMC Envoy came in with the complaint that the a/c will only blow out the defrost and floor. Not through the dash vents. I checked codes and found a code B0263 for a fault with the mode actuator. I first ran into this problem after changing a battery in one of these vehicles last year.

Why is my traction control not working on my envoy?

Traction Control Not Working – Your Envoy’s traction control system mostly uses the same sensors to determine if a wheel has broken traction. Unlike StabiliTrak, which controls lateral issues (sliding), traction control keeps the wheels from unnecessary spinning.

What causes a GMC Envoy to lose its Stabilitrak system?

There are many things that can cause the StabiliTrak system to lose its ability to function. It is a complex system. Wheel Speed Sensor – If one of the wheel speed sensors is out, your Envoy will no longer be able to tell if all of the wheels are turning at the same speed.

Why is the AC not working on my GMC Envoy?