Question about 1998 Dodge Durango

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Rear ac I have replaced the evaporator & compressor, is there an additional evaporator in the rear? If not, what could be some possible problems for the rear not working?

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The most common cause is a defective rear AC expansion valve.

Posted on Sep 08, 2009

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Posted on Jan 02, 2017

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How much freon does a 2002 Chevy Tahoe take with a 4.8 v8.The system has already been evacuated and is ready to be recharged.


Should have a sticker on the radiator core support that shows how much it takes . But if your's is missing here

Refrigerant System Capacities
Application
Specification
Metric
English
PAG Oil GM P/N 12378526 for United States
PAG Oil GM P/N 88900060 for Canada
Accumulator Replacement
-ml*
- oz*
* Add 60 ml (2 oz.) of PAG oil, plus the equal amount of oil drained from the accumulator.
Compressor Replacement
60 ml
2 oz
Condenser Replacement
30 ml
1 oz
The Delphi replacement compressor is precharged without PAG oil.
The Denso replacement compressor is precharged with 237 ml (8.0 oz) of PAG oil.
Evaporator Replacement
90 ml
3 oz
Evaporator, Rear Replacement
90 ml
3 oz
If more than the specified amount of PAG oil was drained from a component, add the equal amount of oil drained.
Total System PAG Oil Capacity
240 ml
8 oz
Total System PAG Oil Capacity with Rear A/C
330 ml
11 oz
R-134a
Refrigerant Charge
0.8 kg
1.8 lb
Refrigerant Charge Utility with Front and Rear A/C
1.2 kg
2.7 lb
Refrigerant Charge Suburban with Front and Rear A/C
1.4 kg
3.0 lb

Mar 15, 2017 | 2002 Chevrolet Tahoe

2 Answers

Could a missing flow straightener prevent a/c from cooling?


No . it will not affect the cooling. If the compressor was replaced because of internal failure it is possible that there is metal stuck in the TX valve orifice preventing full fluid flow to allow the evaporator to work properly. Basically how an ac system works is this . There is gas in the system. A compressor turns this gas to a liquid in the condenser. This is achieved by the TX valve restricting the flow to the evaporator ( bit under the dash). As there is a low pressure in that unit from the compressor trying to suck the gas out then the liquid is converted back to gas ( boiling off quickly from the heat in the car) which cools the air around the evaporator . The process is repeated . IF the tx valve becomes blocked or overloaded by excessive compressor oil then you have problems with cooling.. Have it checked out by an accredited ac specialist shop as the differating pressures between the suction and high pressure sides of the compressor will reveal why it is not cooling.

Jul 27, 2014 | 2002 Dodge Caravan

1 Answer

What s the A/C compressor oil capacity in 2003 dodge durango with rear A/C


If it was shipped empty just add the amount that's stamped on the compressor. But most of the ones that I have seen where shipped wet/ full . to check get a beaker and simply remove the plugs and drain the oil into the beaker. when the system is opened it is recomended that you replace the RECEIVER DRYER also. if the compressor is damaged internally then you need to replace the EXPANSION VALVE also. hope this helps
_____________________________________________

Refrigerant Oil Capacities


Total System Fill - Front A/C Only 5.07 fl oz (150 ml) Total System Fill - Front and Rear A/C Only 7.40 fl oz (220 ml) Receiver/Drier 1.0 fl oz (30 ml) Front Evaporator 2.0 fl oz (60 ml) Rear Evaporator 1.0 fl oz (30 ml) Condenser 1.0 fl oz (30 ml) Compressor drain and measure the oil from the old compressor

Jun 28, 2014 | 2002 Dodge Durango

1 Answer

The a/c clutch wont engage


Did you try jumping where the Clutch relay plugs into the fuse/relay box ? Pin 87 & 30 are the compressor clutch coil power supply . If you look on the bottom of the relay you will see four set's of numbers 30 & 87 , 85 & 86 . If you take a piece of wire an jump 30 to 87 this will send B+ voltage to the clutch coil engaging the compressor . Is the PCM turning on the relay ?
The Trainer 40 When the compressor won compress

Jul 29, 2017 | 1998 Chrysler Town & Country

1 Answer

2006 Town & Country no air conditioning


The plug kit was maybe a 10 dollar part + freon & labor you could have gotten it cheaper,evaporator leakage would be common on any make but seems chrysler has had more of them because there are more of them on the road compared to the other makes.Climate (salt belt region) and vibration are contributing factors to failure but that will apply to any vehicle no matter the make.

Jun 25, 2009 | 2007 Chrysler Town & Country LX New Cars

1 Answer

I need to replace the ac evaporator on a lincoln continental 2001


you have to remove the instrument panel first.

SECTION 412-03: Air Conditioning 2001 Continental Workshop Manual
REMOVAL AND INSTALLATION Evaporator Core Removal
NOTE: The evaporator core is serviced as a core and housing assembly. The evaporator core, internal doors, seals and door linkage are included with the housing. Transfer the blower motor and wheel assembly, heater core and cover, dash panel seals and vacuum actuators to the new housing.
  1. Remove the rear seat airflow duct (18C420). For additional information, refer to Section 412-01 .
  1. Remove the instrument panel (04320). For additional information, refer to Section 501-12 .
  1. Drain the coolant from the radiator so that the coolant level is below the heater core (18476). For additional information, refer to Section 303-03 .
  1. Recover the refrigerant. For additional information, refer to Section 412-00 .
  1. Loosen the screw and disconnect the electrical connector from the powertrain control module (PCM) (12A650).
  1. Disconnect the heater water hoses (18472) from the heater core.
  1. Disconnect the vacuum supply hose.
  1. Disconnect the condenser to evaporator tube and the evaporator to accumulator tube spring lock couplings from the A/C evaporator core (19860). For additional information, refer to Section 412-00 .
  1. Disconnect the evaporator housing electrical connectors.
  1. Remove the nuts and the washers at the cowl panel.
  1. Remove the screws and the A/C evaporator housing.
  1. Remove the screws and the metal cover.
  1. Remove the screws and the A/C electronic blend door actuator.
  1. Remove the A/C air intake flue damper assist spring (19917).
  1. s1e~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Do not attempt to bend any part of the A/C damper door shaft (19A580). It is brittle and will break.
    Depress the locking ramp and remove the A/C damper door shaft from the air temperature control door shaft.
  1. s1e~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Do not attempt to bend any part of the lever. It is brittle and will break.
    Remove the A/C evaporator case outlet door shaft (19B752).
  1. Remove the A/C tube dash panel seal (19B588) and the A/C evaporator drain tube seal (19B739).

May 12, 2009 | 2001 Lincoln Continental

2 Answers

Air conditioning


As much as you probably don't want to hear it, I believe it is time to replace the a/c compressor. Be sure to change the orifice tube while you are at it. The compressor should take approximately 8 ounces pf pag 150 and about 32 ounces of freon.

May 08, 2009 | 1998 GMC Safari

1 Answer

This is ''pops'' moore again!trying to save a $ You helped me before on the firing order.went to a/c guy.he tested system,said evaporator was bad and needed to be changed.his est.was my first born and a...


I assume he used a leak tester and found a leak in the evap which is inside the plenum housing. Need to remove the plenum to get access to the evap. big job. If you are technical, you could remove the plenum assembly and let him replace the evap & then let you out the plenum back in. Then take back to have him evacuate and recharge system.
-------------------------------
SECTION 412-03: Air Conditioning 1999 Town Car Workshop Manual
REMOVAL AND INSTALLATION Evaporator Core Removal and Installation
NOTE: The evaporator core is not separately serviceable. It is serviced only with the evaporator core housing assembly.
NOTE: Installing a new suction accumulator is not required when repairing the refrigerant system except when there is physical evidence of system contamination from a failed A/C compressor or damage to the suction accumulator.
NOTE: If an evaporator core leak is suspected, the evaporator core must be leak tested before it is removed from the vehicle. For additional information, refer to Section 412-00 .
  1. Remove the evaporator core housing. For additional information, refer to Section 412-02 .
  1. Transfer the components from the old evaporator core housing to the new evaporator core housing
  1. Install the evaporator core housing. For additional
  2. information, refer to Section 412-02
---------------------------------------------------------------------------
Evaporator Core Housing Removal
  1. Disconnect the battery ground cable (14301).
  1. Recover the refrigerant. For additional information, refer to Section 412-00 .
  1. Drain the radiator. For additional information, refer to Section 303-03 .
  1. Remove the screws and the RH cowl vent screen.
  1. Disconnect the vacuum hoses and the wire harness connector from the evaporative emission canister purge valve (EVAP canister purge valve) (9C915).
  1. Remove the nuts and remove the evaporative emission canister purge valve.
  1. Remove the heater hoses from the heater core.
  1. Remove the screw and reposition the windshield washer fluid reservoir.
  1. Disengage the four wire harness retainers from the top of the RH fender apron.
  1. Remove the RH front wheel and tire.
  1. Remove the screws from the RH fender apron and remove the fender apron.
  1. Disconnect the wire harness connector from the A/C cycling switch (19E561).
  1. Disconnect the wire harness connector from the blower motor (18527).
  1. Disengage the wire harness connector from the retainer.
  1. Disconnect the evaporator to compressor suction line from the suction accumulator/drier (19C836). For spring lock couplings disconnect and connect general procedure, refer to Section 412-00 .
  1. sxg~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: To prevent damage to the fitting and the tube, use a backup wrench when removing the suction accumulator/drier.
    Disconnect the suction accumulator/drier from the A/C evaporator core.
  1. Remove the clamp screw retaining the A/C accumulator mounting bracket to the A/C evaporator core housing and remove the suction accumulator/drier.
  1. Disconnect the condenser to evaporator tube from the A/C evaporator core (19860). For spring lock couplings disconnect and connect general procedure, refer to Section 412-00 .
  1. Remove the RH instrument panel insulator.
    • Remove the pushpins.
    • Disengage the courtesy lamp holder.
    • Disconnect the power point wire harness connector and remove the RH instrument panel insulator.
  1. Remove the in-car temperature sensor hose and elbow from the evaporator housing.
  1. Remove the nuts at the top of the evaporator housing.
  1. Remove the nuts at the bottom of the evaporator housing.
  1. Remove the screw and nut near the blower motor.
  1. Remove the screws.
  1. Separate the housing and remove the blower motor and A/C evaporator core.
  1. Disconnect the wire harness connector.
  1. Remove the evaporator core cover.

Apr 06, 2009 | 1999 Lincoln Town Car

1 Answer

A c starts off cooling good then compressor starts kicking in and


Several possible causes. Knowing the state of refrigerant charge would be helpful. Assuming it has a 'full' charge (full charge 680 Grams = 1.50 Pounds) Most common causes of AC problems:
1. Thermostatic switch (sensor) malfunction in the evaporator - allowing the evaporator to ice up. Check the vent temperature (using a cooking thermometer) to see if the temperature gets near or below freezing (32 Deg F.). If so, the thermostatic switch in the evaporator is defective. Replace it.
2. Refrigerant UNDER-charge. If the temperature does NOT get near freezing, then you need a set of AC gauges to check the compressor head pressure (High side) and the suction (Low side). High side pressure (nominal) is 229 PSI (+ - 20 psi) @ 2000 RPM. Low side (nominal) is around 20 to 40 psi. NOT common problems:
1. The magnetic clutch coil on the compressor... as it heats/warms up, the coil windings could be going 'open" circuit which would turn the compressor 'off.'
2. Compressor inefficiency (worn out).
3. Expansion Valve
4. Clogged Condensor

Mar 19, 2009 | 2004 Hyundai Elantra

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