When did my GMC Sierra air conditioner stop working?

I had a 2001 GMC Sierra that did this when truck was less the one year old (summer of 2001 is when it was). The dealer had the truck in the shop idling for a long time and the A/C worked perfectly. I told them to take it for a ride and see. So the service manager in an effort to convince me nothing was wrong went for a ride with me driving.

Why is my AC not working on my Chevy Silverado?

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 Chevrolet Silverado 2500 HD has air conditioning problems?

How do you cool a 2004 Chevy Silverado?

Place the Silverado into “park” on a level surface, such as a paved driveway. Allow the Silverado to sit for a half hour, giving components time to cool, preventing potentially serious burns. Open the hood of the Silverado and find the air conditioning system low-pressure hose and fitting.

Why is my Chevy Silverado 2500 not working?

While there are a variety of reasons your Chevrolet Silverado 2500 HD air conditioning won’t work, the most common 3 are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor. What will be the outcome of an air conditioning system diagnosis?

What happens when you turn off the a / C on a Silverado?

Basically the a/c stops cooling after a while, sometimes 30 mins to an hour. It doesn’t blow heat, just becomes ambient, musty and damp, on both the passenger and drivers side. I can switch the sytem off, keep driving for 5 mins, switch it on and it will cool nicely.

Why does my GMC P / you compressor not turn on?

No. Theres a schrader valve to prevent freon from escaping when you replace the switch. Just make sure you dont overtighten it. This is on a 2004 gmc p/u I have checked the fuse and relay all good. I have jumped high pressure switch .I have no power going to the high pressure switch wiring is good.

Is there an A / C Leak in my Silverado?

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. Early summer i had my a/c leak tested, evac’d and filled.

Is the a / C running on my GMC Truck?

It runs and gets somewhat cool but does not get cold. Not even cool enough in 85 degree temps to be comfortable. He checked the freon levels and they were actually high so he got it to the normal levels. No leaks. He checked the filter and it was good but went ahead and replaced it. The compressor is running.

Why does my GMC Sierra 1500 not work?

While there are a variety of reasons your GMC Sierra 1500 air conditioning won’t work, the most common 3 are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor. What will be the outcome of an air conditioning system diagnosis?

What should the temp be in a GMC Truck?

It surely should reach 65 degrees after that time period, especially when its only 80 outside. The guy at the shop obviously didn’t take it for a ride, or even put a thermometer in the vent.

Is the a / C on my GMC Silverado 5.3L?

Also truck is a 2003 silverado 5.3L Click to expand… There is a safety precaution to keep from burning up the pump/compressor when the freon is low, the relay won’t lock over but after you read it you have to jump the relay with a piece of wire to kickstart it and from there on it’s fine as long as it keeps pressure and there is no leak.

How to add refrigerant to a 1999 Chevy Blazer?

How to add freon to your 1999 Chevrolet Blazer: hook up the can of refrigerant (likely r-134a) to the low pressure port. When your compressor kicks on, add freon to the correct pressure.

Why does my air conditioner stop working in the morning?

We added a can of freon, tightened the Schrader valve, etc. When it is cold in the morning it works fine. When it heats up during the day it will run for a while and then the compressor kicks off. If I turn off the A/C in the truck for about 3-5 minutes it will work again for a while when I turn it back on.

Why is my AC not working on my Silverado?

It is possible your AC system may have a slow leak, or even be overcharged. The AC system will not operate if it senses pressures too low or high. If you get a pressure gauge by Duracool from Wal-Mart you can check if pressure is somewhere between 25-38p.s.i is perfect, and no more than 45 p.s.i.

Why is my air conditioning not working on my GMC Sierra?

What to do when your car AC won’t work?

Thanks ASTE25, Today I replaced the orffice tube, drier bottle, and flushed all lines including condenser, and evaporator. Didn’t see anything in the orffice tube upon replacing it. Recharged, cooled great for a while. On my way home, starting getting warm again, turned ac off for 10 mins, turned back on, cooled for 5-10 min then back to warm air.

How does the AC work in a Chevy truck?

Recharged, cooled great for a while. On my way home, starting getting warm again, turned ac off for 10 mins, turned back on, cooled for 5-10 min then back to warm air. Compressor???? It’s not making any chattering sound or anything obvious.

Why does my air conditioner cut out when I accelerate?

Typically this occurs due to a bad vacuum check valve under the hood. During hard acceleration the AC door system loses vacuum, causing the doors to default to the windshield. This check valve keeps this from occurring. It is located under the passenger side of the hood.

Is the air in my GMC Sierra cold or warm?

First thing in the morning the air is cold. After 30 minutes of using, it turns warm and does not get cold again, unless I turn the truck off for a while and restart.

What should the high side pressure be on a GMC Sierra?

Your low side pressure should be 30-35 PSI and your high side pressure should be 200 PSI. The orifice tube regulates the flow of Freon into the evaporator and the accumulator is not only your filter but also removes moisture that when reaches freezing can block the flow if the moisture is not absorbed by the accumulator.

Why is my GMC Sierra 1500 AC not working?

Air will be blowing cold and then just start blowing hot. Switching the truck off and back on usually helps. Air blows out the vents for about 20 mins, then it starts blowing out slower and soon it is blowing out in the ducts, but not coming out anywhere, (vents, defrost or the feet ) .

First thing in the morning the air is cold. After 30 minutes of using, it turns warm and does not get cold again, unless I turn the truck off for a while and restart.

What to do if your AC is not working in Your Truck?

Switching the truck off and back on usually helps. Air blows out the vents for about 20 mins, then it starts blowing out slower and soon it is blowing out in the ducts, but not coming out anywhere, (vents, defrost or the feet ) .

How much does a GMC Sierra 1500 cost?

The average cost for a GMC Sierra 1500 AC Diagnosis is between $53 -$67. Learn More When selecting where i want my air to go, it only comes through the vent at my feet and through the defrost. The dash vents do not blow any air. It seems like a common problem. Im gonna go ahead and replace the mode actuator! A/C only cold on passenger side.

What kind of truck won’t start after sitting?

Repair manuals and support for cars and trucks manufactured by Chevrolet, a division of General Motors. 2003 S10 V6. If the truck is started everyday it starts right up with no problems. If left sitting for at least 24 hours it is hard to start it.

How to troubleshoot a no start GM 4.3L pick up?

Testing a Cranks but Does Not Start condition on your GM 4.3L, 5.0L, 5.7L pick up, van or SUV is not that hard to do, if you have a solid diagnostic strategy. In this article I’ll show you the basics of testing such a problem.

Why is my AC compressor automatically off after 5 minutes?

That would cause the room to heat and the AC would kick on for 5–10 minutes, depending on how much heat is coming into the room. Below are the several causes that leads to AC compressor turn off automatically after sometime are as: A restricted airflow. frozen evaporator coils.

Why does the a / C compressor cycle on and off?

The most common cause is the cycling switch going bad. This switch is located on the side of the accumulator and controls the a/c compressor. When the system gets to low on pressure, the switch opens up and causes the compressor to stop and cycle back on after the pressure comes back up.

What happens when engine heats up to operating temp?

As the engine heats up the ring-cylinder mate becomes looser so that the engine will run smoother and easier…but if there is too much wear the combustion gases will begin to blow by the ring-cylinder surfaces and will cause each stroke to lose power.

Why did my GMC truck engine die while driving?

The positive battery cable was coroded and chewed up. Replaced it and all has been well.

What to do if your GMC Sierra stall out?

69 people found this helpful. I have a 98 gmc searria 4×4 i checked fuel pressure it was under i changed fuel pump and fuel filter and its still starving for fuel what to do it starts with starting fluid 42 people found this helpful.

Who is the owner of the 2008 GMC Sierra?

2008 GMC Sierra Owner ManualM GENERAL MOTORS, GM, the GM Emblem, GMC, the GMC Truck Emblem, and the name SIERRA are registered trademarks of General Motors Corporation. This manual includes the latest information at the time it was printed. We reserve the right to make changes after that time without further notice.

Is the fan speed set or intermittent on a Silverado Sierra?

Just the blower is intermittent, not the compressor. Fan speed does not have set speeds, it’s more like a rheostat. It has the rotary control.

What causes intermittent operation on a Silverado Sierra?

Rockauto has them for like 30 bucks so it isnt a huge parts cannon projectile to try. The electrical schematic indicated it has a rheostat for fan speed control I just wanted to be sure that is what you have. Rheostats can get bad spots (worn or dirty) that will cause intermittent operation when you stop the control at one of these spots.

What kind of engine does GMC Sierra have?

The weight of passengers, cargo and options or accessories may reduce the amount you can tow. Sierra’s 12,500-lb rating requires Sierra Double Cab or Crew Cab Short box 2wd with 6.2L EcoTec3 V8 engine and NHT Max Trailering Package.

Why does my 2005 Tahoe blow hot air?

My 2005 Tahoe hava AC giving hot air problem. AC would suddenly blow hot air just on the driver’s side while the passenger side still blew cold. The only way to correct it was to turn the car off and back on and then it would immediately start blowing cold again. This happens intermitently.

How much is the AC unit on a Silverado?

The hardest part was the last screw holding up the plastic cover above the center hump. Gonna kick that engineer. The part is $137 on gmpartsdirect. Thanks to their wonderful website, there is no direct link or part number.

Why does my car air conditioner blow cold then warm?

Any number of culprits could be causing your car A/C to blow cold then warm air, including: A Leak in the A/C System A small refrigerant leak is the most common reason a car’s A/C gradually loses its cool.

When did my GMC Sierra air conditioner stop working?