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Can u bi pass air compressor - 1998 Ford Escort

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If you are talking about the AC compressor...go to rockauto.com. look up ac bypass pulley for your car. $30

Posted on Nov 11, 2010

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Posted on Jan 02, 2017

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The freezer doesn't freeze that good but the refridgerator does work.


It is possible that the defrost cycle is not working. Look for signs of ice built up in the freezer compartment. The excess ice prohibits the air circulation.


26128165-5xkmzur1kbcrfneaoxy43scu-3-0.jpg If defrost cycle appears working and compressor runs continuously it is probable that the Freon is low or compressor is failing.

the usual tell is the refrigerator gets colder than usual and the freezer does not get as cold. The situation is that the compressor runs until the freezer temperature is satisfied. If the compressor can not achieve the cold temperature of the freezer it will run continuously.

When the unit runs continuously the bi-pass of air is increased bringing more cold air into the refrigerator portion of the unit.

Mar 13, 2016 | Cars & Trucks

1 Answer

When i turn on my heat/air on defrost or auto my rpms go up... what could cause this


The basic concept is that in auto or defrost the air conditioner compressor is activated.
The compressor when activated via an electrical clutch adds an additional load that will reduce the engine RPM. The the RPM is increased slightly when the A/C is activated to prevent the engine from stalling. Power produced by the engine is increased by allowing more air and gas into the engine. When it is working perfectly the RPM will remain the same but the engine will produce the additional power to power the AC compressor.

Usually the bi-pass air valve is how the compensation for the additional power is accomplished.

Depending on your make year and model several methods to achieve the AC compensations have been used. In your specific case if the compressor is not working(no Air) and the compensation is open loop no engine control electronics I would expect a surge in RPM. With no additional load from the AC the additional air into the engine would increase the RPM.
26106712-qb20k32l4fvb2dr3l0mnapaf-4-0.jpg On older cars there is a solenoid that has an adjustment for idle speed when the solenoid is activated. See the image above.
Hope this helps?

Feb 24, 2016 | Cars & Trucks

1 Answer

I don't know how to turn back on my air compressor.


check comp for power ;make sure its plugged in but if its not then, look to the rear of the car ,bumper look for a air fill line along the bumper or in the trunk if ther is one then the bi-passed the pump

Oct 11, 2012 | 2000 Buick LeSabre

1 Answer

Bi passing low pressure switch a/c compressor does not work in worm conditions


I suspect you have a low refrigerant charge in the system due to a leak, leaking AC compressor shaft seals are common in this year. Have a shop confirm the pressures in the system are within specs

Jul 26, 2012 | Cars & Trucks

1 Answer

2003 Yukon Denali has Service ride Control Warning..wat to do?


Hi Jose:
The first place to start is to have Ride Control Module scanned for trouble codes, this requires a high end scan tool. Most common problem is the air compressor in the rear or a height sensor. Here is how the system works.

Automatic Level Control Description and Operation
The RTD system is bi-state real time damping system. The Suspension Control module controls the suspension damper solenoids and suspension position sensors, along with parts of the automatic level control (ALC) system and electronic variable orifice (EVO) power steering system.

The Automatic Level Control system consists of the following:
• Suspension Control Module
• Compressor/Leveling Module
- Air Pressure Sensor
- Exhaust Solenoid
• Compressor Motor Relay

The objective of the Automatic Level Control System is to provide constant ride height at all load conditions. The Suspension Control module monitors body-to-wheel height, and vehicle speed.

The Suspension Control module will use the rear body-to-wheel displacements and vehicle speed inputs to keep the rear trim height of the vehicle at its desired level.

The electronic suspension control (ESC) system is bi-state real time damping system. The ESC module controls the suspension damper solenoids and suspension position sensors, along with parts of the automatic level control (ALC) system, if 1500 series.

The ESC system consists of the following:
• The ESC module
• The compressor/leveling module, if 1500 series
- The air pressure sensor, if 1500 series
- The exhaust solenoid, if 1500 series
• The compressor motor relay, if 1500 series
• The steering handwheel speed/position sensor
• The suspension damper solenoids
• The suspension position sensors

Hope this helps; also keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using Fixya, and have a nice day.

Nov 16, 2011 | 2003 GMC Yukon Denali

1 Answer

1999 grand jeep cherokee limited air con prob water coming out vent behind driver seat and water drops noted under glove box front passenger side ???? what to do air con recently regased works well but...


You have a leak in your air conditioning compressor Your system works on the reheat principle All air passing through the system is cooled and reheated before it enters the cabin this sould be dehumidified air but it passes through the heater core and sence the air is not dehumidified you are getting condansation as the air flows the heater core that is heated by the engine heat and the water is from condencation because of the leak in the ac compressor The unit is a press fit in the center of it and fials unfortinatly a lot with this disgien of compressor

Nov 26, 2010 | 1999 Jeep Grand Cherokee

1 Answer

1998 crown vic air suspension compressor does not pump.


Sounds like the problem is in the air bag suspension, not the compressor. The air bags shouldn't be losing air when the car sits. The compressor adjusts the suspension level according to the load. The air bags have a valve similar to a blow up raft that allows air to pass through both ways. If when the car is running the compressor is constantly running and not turning off, the issue is within the air bags and/or the air line.

Sep 05, 2009 | 1995 Ford Crown Victoria

1 Answer

How do you bi pass the airconditioning compressor on a dodge 1500 truck ( serpentine belt )


im sure AC is standard and it is not made to to be bypassed. unplug the compressor. if not possible start guessing with a smaller belt if possible

Sep 02, 2009 | 2001 Dodge Ram 2500 Truck

1 Answer

Truck heater is stuck ON


There is a blend door motor on top of the housing. If you open the glove box, and look to the top of the housing near the left rear of the glove box, you should see the blend door motor. You can check it at this point. Also check the housing, as I have seen a number of these with a damaged or broken housing.

Nov 03, 2008 | 1997 Ford Explorer AWD

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