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Why is my Chevy Silverado air conditioner not working?

Why is my Chevy Silverado air conditioner not working?

My 1998 GMC Sierra 4×4 5.7 engine is having an air conditioning pain in my hind end. The pump engages then shuts off engages, shuts off. Last year it was doing the same thing so I figured it needed charging. Put on the can that has a gauge on it hooked up the hose.

How does the secondary air pump work on a Chevy Silverado?

Secondary air pump-I tested its operation at startup. The pump enables at startup and pumps air at an acceptable volume. There are no signs of wear or issues with the pump. Secondary air valve- I tested operation at startup The valve opens and allows air to flow from the pump to the exhaust.

How to run a secondary air monitor on a Chevy Silverado?

1. Idle vehicle 5 minutes (achieve closed loop) 2. Accelerate and drive for 1 min at steady speed above 50 mph 3. Slow vehicle down to 20 mph. Do not use brake clutch, or shift gears. 4. Repeat steps two and three 5 times.

Is the a / C on my Silverado Z71 working?

My 2006 Silverado Z71, 5.3L has A/C acting much the same as “Terry” from 05/June/2018. The difference is the 85 relay terminal is “pulsing” between green indicating a good ground and anywhere from 0.1 to 0.4 V. Would this indicate a bad ground wire coming from the PCM or maybe a bad PCM?

My 1998 GMC Sierra 4×4 5.7 engine is having an air conditioning pain in my hind end. The pump engages then shuts off engages, shuts off. Last year it was doing the same thing so I figured it needed charging. Put on the can that has a gauge on it hooked up the hose.

Why is my Chevy Silverado 1500 blowing hot air?

When the air conditioner in your 2004 Chevrolet Silverado 1500 starts blowing hot air, you likely have a freon leak. Recharging the freon in your AC system is an inexpensive and easy first step to restoring the cooling capacity of your A/C system.

What kind of a C system does a Silverado 1500 have?

The A/C system in your Silverado 1500 consists of a compressor that is belt-driven, an evaporator and freon. If there is a problem with your compressor or evaporator, adding freon will not restore cooling.

What kind of refrigerant does a 2000 Chevy Silverado use?

Note: a U.S. built 2000 model year truck uses R134a refrigerant, not Freon (R12). OK, you’re on the right track. If the system is fully charged (pressure correct), but the A/C compressor clutch does not engage, the fault is electrical.

Why is my air conditioning not working on my Chevy Silverado?

There are many reasons why air conditioning may not be working properly on your Chevy Silverado 1500. When looking for the reason, you should always start with the most obvious cause, low refrigerant level in the system. In any case, it is advisable for laypersons to visit a workshop.

When to change AC in Chevy Silverado 1500?

It also puts unnecessary strain on the entire AC system which negatively impacts your Silverado 1500’s fuel consumption. There is no prescribed time for changing cabin air filter, but most manufacturers recommend a change after 10,000-20,000 miles.

When the air conditioner in your 2004 Chevrolet Silverado 1500 starts blowing hot air, you likely have a freon leak. Recharging the freon in your AC system is an inexpensive and easy first step to restoring the cooling capacity of your A/C system.

What to do if your GM air conditioner fails?

If you own one of the affected 2014-2017 model GM vehicles listed below and have experienced A/C failure or are concerned about imminent air conditioning failure in your SUV or truck, we urge you to contact us immediately using the form below to discuss your potential product defect case.

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Ruth Doyle