Question about 2001 Dodge Neon

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2001 dodge neon has high ac pressure

I put freon in my ac system it ran cool for a little bit i put the gage on it and 40psi it took off and then i start and put the gage back on the gage went way pass the warning the red on the gage.

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6ya6ya

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Posted on Jan 02, 2017

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Anonymous

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SOURCE: 2003 Dodge Ram 1500 won't start -little red light...

do the lights come on in the front if its just a little red light its possible you tripped the security on the van . or is it the batery light flashing and the battery is dead

Posted on Feb 21, 2009

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Anonymous

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SOURCE: Dodge Ram AC not blowing cold

By pass both pressure switches one at a time with small wire or a paper clip. If comperssor kicks on replace the swich that you bypassed.
if not it could be the fan clutch ot the compressor. Compressor runs about $400.00

Posted on Jun 23, 2009

Anonymous

  • 5 Answers

SOURCE: 2000 dodge ram pick up - ac blows hot air and freon is good

expansion valve looks like is not openning or the capilary tube is bad

Posted on Aug 02, 2009

Anonymous

  • 2 Answers

SOURCE: 2005 Dodge Durango Front AC won't blow cold, back air works great

Did anyone find the answer for this?

Posted on Aug 30, 2009

Anonymous

  • 1 Answer

SOURCE: 2000 dodge neon high idle

you might need a new idle air control module, dont adjust your idle

Posted on Feb 20, 2010

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1 Answer

AC not running in my 1998 Jeep Cherokee. Changed AC clutch compressor RELAY, freon level is good, temperature sending unit replaced along with cooling fan! Checked all fuses still good. Can't seem to...


Hello, You have two switches which work off the pressure of the Freon. Both of these switches cut off the power to the compressor. One is for HIGH pressure and the other is for LOW pressure. Check for power at the compressor clutch connector harness while the controls are set and the engine is running. You may have power and a bad clutch.

When you say that the Freon pressure is good, does that mean the pressure is within the proper range? Too much Freon will make the HIGH switch cut off power and too little will make the LOW pressure switch cut off power.

The ideal amount(ozs) of Freon is what is recommended by the Manufactuer and it will provide a moderate amount of pressure of about 35psi-40psi. You can borrow pressure gauges, called Manifold gauges to measure your system at autoparts stores with loaner programs.

The low pressure side of the system is the one you use to induce the Freon to go into an empty system. You can bypass this switch by taking off the connector and putting a "U" shaped jumper into the harness and the compressor clutch should get power to LOCK up all of the time.

You can take off the switch connector at the compressor clutch and then check for power when bypassing the HIGH pressure switch if the LOW pressure switch does not make the system get power. Only, really only bypass the HIGH pressure switch with the clutch connector disconnected. The HIGH switch is there to prevent damage to all of the components from seals to lines to every piece of Freon hardware in the car. Bypassing with the A/C clutch disconnected will allow you to know if power is getting to the compressor clutch.

Finally, you can get FREE wiring and fusebox diagrams through Autozone.com. Just sign and register to their site and then you can print the documents for yourself.

Good luck with this repair and I hope my solution helps you.

Mar 19, 2012 | 1998 Jeep Cherokee

1 Answer

Everything seems normal in my nephews 2001 Jeep Grand Cherokee as we assembled the AC System until I had just about finished adding the second can of 134a Freon..At that time the high pressure gage started...


If the high side got up to 375, your electric fan probably did not come on. Fan relays are always an issue. Underneath rt headlamp assembly. Make sure fan works with a jumper as these go too, and will take out the relay

Aug 02, 2010 | 2001 Jeep Grand Cherokee

1 Answer

My daughter's 2000 Dodge Neon's air conditioner wasn't cooling very sell so she took it in to have freon added. The shop drained all the freon out and then tried to add new freon but none will go into the...


you need the compressor running to get freon into the system
using gauges on a manifold you allow the compressor to suck the gas in to the system until you get a pressure reading at the high side gauge
That is the correct amount of gas for the system
take it to an accredited ac specialist shop to have the job done properly

May 20, 2017 | 2000 Dodge Neon

1 Answer

Service port


It seems that you have a leak, best bet is to bring it to someone with a set of gages to check the pressures while the ac system is operating. The high side should be about 150-200 psi and low side between 30-40psi with those numbers you should be running very cool. If its not that high then you most probably have a leak in the system most probably at one of the recently replaced parts or a new place, fill the system with a uv dye and recharge. drive for a week or two and check with a uv light.

Aug 26, 2009 | 2000 Chevrolet Cavalier

2 Answers

Air conditioner gets hot on passenger side while drivers side is


either your R134a is leaked out ore you need add and also add a dye see if leaks.
Add to the low side the car while running with gage with ac cranked on high follow metter dont over fill it loc the ac up. Easy 20 minute job wallmart sells the gage and R134s and so do auto zones

Jul 28, 2009 | 2001 Lincoln LS

1 Answer

My ac doesnt work in my 2001 tahoe. i bought freon for it. the compressor is not kicking on when i turn the ac on, but the gage shows in the red when i hook it up to try and put freon in it. i shot a...


the a/c system needs a minimum pressure before the system will run. the system must have a leak so just buying freon may last a day or a few months depending on the size of the leak. also leaking freon into the air is ozone depleating, it should be recovered properly.

the system needs to be recoved of all freon. vacuum to -30psi held checked for leaks. (uv dye or nitrogen and soapy water). leaks fixed. vacuum to evacuate moisture and air. refilled with proper amount of freon (too much or too little make the air not as cold).

Jun 25, 2009 | 2001 Chevrolet Tahoe

1 Answer

Air conditioning


It sounds like you over charged the system, the low side should be 40psi to 50psi with the A/C on high and the high pressure side should read 150psi to 200psi. Anything different, you need to get the system service and try not to use your A/C to prevent the compressor from any damages. Good luck and hope this helps.

Jun 15, 2009 | 2001 Chevrolet Silverado 2500HD

1 Answer

My ac wont get cool


could be your pressure switch.if to much freon was put into the system your pressure control switch will automaticlly shut down the system.try taking a little bit out at a time and see if the clutch on the ac is engaging.

Aug 03, 2008 | 1993 Honda Accord

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