Question about Chevrolet Crew Cab

1 Answer

A/c compressor runs with dash switch off then loses freon from relief valve

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 958 Answers

We can solve this, but i need more info, a/c compressor should not run with the dash switch to off, so there could be a short in the switch or something is powering your a/c compressor.

another thing is the gas being relieve to your relief valve, your condenser fan could not be running there by creating a high head pressure to relieve on the relief valve or the valve could be open already and not the type where it seats back if the pressure is already low.

are you just putting gas right now as these things happens?

if so, you could have a clogged in your system, building a high head pressure to relieve in the valve.

the clogged could be in the filter dryer, or the expansion valve inside the evaporator coil.

tnx 4 using fixya,


drcool

Posted on Sep 28, 2008

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Replaced all A/C major components (compressor, filter-drier accumulator, and orifice tube) except condenser due to a seized compressor and failed clutch bearing. Flushed system and appeared to have no...


It sounds like you've done just about everything except to check if there is a bad or intermittent wire causing this or perhaps your low-pressure safety cutout switch is possible going bad causing the compressor to kick on and off?

Nov 01, 2013 | Lincoln Town Car Cars & Trucks

1 Answer

Compresor dont get current


Autozone.com has diagrams for free when you register your car on their site. You can test the low pressure cut-off valve downstream from the evaporator tank by disconnecting the harness from the switch and using a good size wire to loop into the harness.

If the compressor clutch kicks in, you have either low system pressure or a bad low-pressure cut-out switch. This is a test procedure. Even bypassing direct as you have done can risk damaging the compressor.

Besides Freon, compressors need oil, the right type, and a small amount. There are Freon cans which include an oil charge as well as sealers and conditioners to prevent or fix leaks. Remember that the system has a volume limit and more additives leaves less room for the Freon to work good.

If you have low pressure, it is possible that what is left is contaminated. Freon is a gas. Air is a gas. The system was suppose to start with Vacuum negative pressure by using a Vacuum pump(Loaner item). This means that total volume inside your hoses could be wrong. It is easier to understand when you consider the Freon changes back to a liquid and Air needs a much lower temperature to become a liquid. So you lose volume for the Freon to change back from liquid to a gas. It constantly cycles like this to make it transmit heat from the cabin to the outside.

I hope my solution is helpful.

May 28, 2012 | 1992 Jeep Cherokee Sport

2 Answers

The Air conditioning compressor will only run for short periods


You said the freon was checked then the problem may be the pressure switch located on the accumulator. It may be faulty.

May 29, 2010 | 1996 Ford Mustang

1 Answer

My a/c is not working but the compressor is good. the compressor is not engaging. is there a relay or fuse i need to look for?


No fuse or relay, first if the compressor is not engaging, most times means your system is low on freon. There is a low pressure switch that keeps the compressor safe if not enough freon to run properly. Buy you a can of 134a with a reusable valve/hose and add a little to the system. The valve will have a gage to show if it is low or not. If it is not low, then the pressure switch may be bad.

May 05, 2010 | 1998 Honda Civic

3 Answers

Need to jump compressor on to recharge refrigerant


You should not have to jump compressor to recharge a/c system, when adding freon low pressure switch will kick compr on, if it's not kicking on or it read low freon on your dash, replace both low pressure switch's, both sit along fire wall from left to right on a thin a/c line, when replacing these switch's make sure what ever freon in system is recover.

Jan 21, 2010 | 1997 Cadillac Seville

1 Answer

The air ride compressor comes on too often


If the compressor is constantly running you have a leak. The leak is either in the line running to the air bag or in the air bag itself. If you're lucky, it's in the line which you can determine if ou trace the lines running from the compressor while its on and listen/look for a leak. The lines run all the way to the air bags which have an electrical relief valve. It's possible the relief valve was damaged when you jacked up the truck as well. If no leak is discovered, then you've got an air bag issue and will need a technician.
Best of luck.
Greg

Aug 01, 2009 | 2000 Ford Expedition

1 Answer

I am working on a 2000 nissan maxima and i have replaced the compressor and refilled the freon and oil and the presure relief valve keeps poping open with only one can of freon instaled it seems likethere...


Sometimes there are plugs in the compressor when shipped. Make sure that there is nothing in the compressor where the line attach. How much oil did you put in the system. Compressor are shipped with oil in them. The correct way to measure would be to drain the oil compressor and measure that amount. Then drain the new compressor and compare the amounts. Put NEW oil in the new compressor. Remember the compressor can not compress liquids. It is possible that there is too much oil in the compressor.

Jul 18, 2009 | 2000 Nissan Frontier

1 Answer

AC air is only cool, how do you recharge the compressor?


You can buy a can or,refil kit of R-134-A at walmart however only put the freon in on the low side (read the directions) if the freon gas will not go in; run an 18 gauge wire from the battery to the compressor clutch switch to run the compressor if the freon gas still won't go in it must be evacuated and, recharged by a shop. only put in enough freon to get the system cold any more than that and, you will lose cooling again (over charge)

Jun 11, 2009 | 1997 Cadillac DeVille

1 Answer

Air cond dash light works, compressor doesn't go on.


AC's have a low freon switch that shuts off the system to protect the compressor in the advent that you have a freon leak have the system checked for a leak

May 28, 2009 | 1996 Toyota Camry

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

306 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

70387 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22041 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6878 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...