How do i eliminate rear air suspension on 2001 tahoe

2001 Chevy Tahoe Heat Problem - Tahoe Forum

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Dec 5, 2008 - 10 posts - ‎7 authors 2001 Tahoe, the front heater blows a little hot air when the car warms up and then blows cold air. The rear heat seems to work fine. I changed ...

Rear AC blows hot air - Tahoe Forum - Chevy Tahoe Forum

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Jul 14, 2008 - 10 posts - ‎5 authors
On my wifes 03' Yukon the rear air conditioning blows hot air no .... Pull the panel off and look at the hot/cold actuator shown in the picture.

Tow package Reece hitch with the right size ball, electric brakes with trailer wiring. Sway bar\'s stops trailer from swaying back & forth. The most important is to find out the tongue weight on trailer. If it\'s more than your Tahoe can handle you will need to put air bag\'s on your rear suspension to help support the weight. You will also need to check the tire load rating on your Tahoe\'s rear tires. You don\'t want a blow out going down the road! Goose neck trailer won\'t work period! Good luck!

Having it hooked up to a factory scan tool would be your best bet . Check for DTC'S diagnostic trouble codes . Without testing ,code scan ,we'd only be guessing .
Very complex , the untrained person hasn't got a pray of fixing this . You have no idea what your dealing with . Vehicle Dynamic Suspension The vehicle dynamic suspension consists of the following components:

• Rear air suspension control (RAS) module (5A919)
• Snorkel
• Drier
• Air compressor (5319)
• Air suspension switch (5K761)
• Solenoid valve (5311)
• Air spring (5560)
• Air suspension height sensor (5359)
• Air line
• Rear Air Suspension Control Module
  A microprocessor controls the air suspension system. The microprocessor and its supporting hardware are contained in the rear air suspension control module. The rear air suspension control module responds to signals from various sensors in the vehicle to maintain the programmed ride height while the vehicle is either moving or stopped. The rear air suspension control module accomplishes this by opening and closing solenoid valves to control the amount of air in the air spring(s). The rear air suspension control module turns on the compressor by applying voltage through the compressor relay to inflate the air spring(s) and raise the vehicle. The rear air suspension control module opens the vent solenoid to lower the vehicle by releasing air from the air spring(s) in response to signal inputs from the air suspension height sensor(s).
• Rear Air Suspension Control Module Diagnostic Trouble Code (DTC) Index DTC Description Source Action B1317 Battery Voltage High Rear Air Suspension Control Module GO to Pinpoint Test C . B1318 Battery Voltage Low Rear Air Suspension Control Module GO to Pinpoint Test C . B1342 ECU Is Defective Rear Air Suspension Control Module INSTALL a new rear air suspension control module. REFER to Module-Air Suspension Control . TEST the system for normal operation. C1441 Steering Sensor Channel A Circuit Failure Rear Air Suspension Control Module REFER to Section 211-00 . C1442 Steering Sensor Channel B Circuit Failure Rear Air Suspension Control Module REFER to Section 211-00 . C1722 Air Suspension Height Sensor Power Circuit Short to Power Rear Air Suspension Control Module GO to Pinpoint Test D . C1723 Air Suspension Height Sensor Power Circuit Short to Ground Rear Air Suspension Control Module GO to Pinpoint Test E . C1760 Air Suspension Rear Height Sensor High Signal Circuit Failure Rear Air Suspension Control Module GO to Pinpoint Test F . C1763 Air Suspension Rear Height Sensor High Signal Circuit Short to Ground Rear Air Suspension Control Module GO to Pinpoint Test G . C1765 Air Suspension Rear Height Sensor Low Signal Circuit Failure Rear Air Suspension Control Module GO to Pinpoint Test F . C1768 Air Suspension Rear Height Sensor Low Signal Circuit Short to Ground Rear Air Suspension Control Module GO to Pinpoint Test H . C1770 Air Suspension Vent Solenoid Output Circuit Failure Rear Air Suspension Control Module GO to Pinpoint Test I . C1773 Air Suspension Vent Solenoid Output Circuit Short to Ground Rear Air Suspension Control Module GO to Pinpoint Test J . C1790 Air Suspension LR Air Spring Solenoid Output Circuit Failure Rear Air Suspension Control Module GO to Pinpoint Test K . C1793 Air Suspension LR Air Spring Solenoid Output Circuit Short to Ground Rear Air Suspension Control Module GO to Pinpoint Test L . C1795 Air Suspension RR Air Spring Solenoid Output Circuit Failure Rear Air Suspension Control Module GO to Pinpoint Test M . C1798 Air Suspension RR Air Spring Solenoid Output Circuit Short to Ground Rear Air Suspension Control Module GO to Pinpoint Test N . C1813 Air Suspension Vent Request Exceeded Max Timing Rear Air Suspension Control Module GO to Pinpoint Test O . C1818 Air Suspension Air Compressor Request Exceeded Max Timing Rear Air Suspension Control Module GO to Pinpoint Test P . C1830 Air Compressor Relay Circuit Failure Rear Air Suspension Control Module GO to Pinpoint Test Q . C1832 Air Compressor Relay Circuit Short to Power Rear Air Suspension Control Module GO to Pinpoint Test R . C1840 Air Suspension Switch Circuit Failure Rear Air Suspension Control Module GO to Pinpoint Test S . C1842 Air Suspension Switch Circuit Short to Power Rear Air Suspension Control Module GO to Pinpoint Test D . C1897 Steering VAPS Circuit Loop Failure Rear Air Suspension Control Module REFER to Section 211-00 . U1041 SPC Invalid or Missing Data for Vehicle Speed

it will cost more than it is worth to fix it, trade it in on something and stay away from air suspension cars

you will have to reconfigure the rear suspension, best talk to a spring and suspension shop

It sounds like one of your air bags could have blown. I would check them first. I would also suggest checking into a replacement non air conversion kit from Strutmasters. I replaced the air system on my 2002 Navigator and saved a lot of time, money and headaches.The lines on my navigator had holes in them and I replaced the compressor twice before I realized it. Very costly. Avoid all the hassle and check out Strutmasters.

Description and Operation The rear air suspension:

• Is an air-operated, microprocessor-controlled, suspension system.
• Replaces the conventional rear coil spring suspension.
• Provides low spring rates for improved ride and automatic rear load leveling.
• Is standard equipment on the Town Car.
• Is available as optional equipment on Crown Victoria and Grand Marquis.

The rear air suspension system has the following features:

• The system is operational with the ignition switch in the RUN position.
• Automatic rear load leveling has limited operation for one hour after ignition switch is turned to OFF.
• The air suspension switch, located on the right side of the luggage compartment, must be turned OFF when the vehicle is on a hoist, being towed or jump started.
• The Air Suspension warning indicator is located in the instrument panel, to the right of the speedometer.
  • The warning indicator flashes five times and then stays on when service switch is turned off or a system malfunction is detected.
• The rear leveling system operates by adding or removing air in the springs to maintain the level of the vehicle at a predetermined rear suspension D ride height dimension, and is controlled by a control module (5A919) .
• The rear air suspension control module also controls the electronic variable orifice (EVO) steering.
• Refer to Section 11-02 for Description of the EVO steering system.
• Air required for leveling the vehicle is distributed from the air compressor to the rear air springs by a nylon air line which runs from the compressor air dryer (5346) through a Y-fitting to each individual air spring.

Suspension, Computer Controlled—Town Car


Item Part Number Description 1 9C392 Compressor Relay Power Junction Block 2 5A897 Air Line (Attached to Brake/Fuel Bundle) 3 5319 Air Compressor With Regenerative Air Dryer and Vent Solenoid 4 5A897 Air Line to Compressor 5 5K761 Air Suspension Service Switch 6 14489 Data Link Connector 7 — Quick Connect 8 — To LH Air Spring 9 — From Compressor 10 — Y-Fitting (Part of 5A911) 11 — To RH Air Spring 12 5A908 Heat Shield 13 5A966 Spring Retainer Clip 14 5560 Rear Spring 15 5359 RearAir Suspension Height Sensor 16 5A919 Control Module 17 14018 Air Spring Solenoid

Control Module Power and Ground The control module (5A919) has the following features:

• Power is provided by Circuit 418 and is controlled by the air suspension switch.
  • The air suspension switch is powered through a 15 amp fuse in Circuit 296 in Town Car.
  • AIR SUSPN PUMP (30A MAXI) fuse provides this power through Circuit 414 in the Crown Victoria/Grand Marquis.
• Control module ground is provided through control module wire harness Pins 6 and 21, to the RH inner quarter panel sheet metal, near the control module .

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Weight Added When weight is added to the vehicle:

• The air suspension height sensor (5359) length is reduced from trim length, sending a "rear is low" signal to the control module (5A919).
• The control module then turns the compressor on by grounding the compressor relay control Circuit 420. This restores the rear of the vehicle to trim position.
  • Battery voltage is provided to the relay coil by Circuit 414.
• The control module opens the spring solenoid valves (5311) by switching Circuits 416 and 429 to ground. This allows pressurized air to enter the springs.
  • Battery voltage is provided to the air spring solenoid valves by Circuit 414.
• Compressed air flows from the compressor, through the compressor air dryer (5346) airlines and spring solenoid valves into the rear springs (5560).
• As the rear springs raise the rear body height, the air suspension height sensor increases in length until the preset trim height is reached.
• The control module then turns off the compressor (through the relay) and closes the air spring solenoid valves.

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Weight Removed When weight is removed:

• The air suspension height sensor (5359) length is increased from the trim length, sending a "rear is high" signal to the control module (5A919).
• The control module then opens the vent solenoid valve (located in the compressor assembly) by switching Circuit 421 to ground and opens the solenoid valves (5311) by switching Circuits 416 and 429 to ground. This restores the rear of the vehicle to trim position.
• Compressed air flows from rear springs (5560), through the air spring solenoid valves, air lines, compressor air dryer (5346), and out the vent solenoid valve.
• As the body lowers, the air suspension height sensor length decreases until the preset trim height is reached.
• The control module then closes the vent and solenoid valves.

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Control module operates as follows:

• In general the control module uses a 45-second averaging interval to determine when compress and vent operations are needed.
• However, door courtesy lamp switch (13713) inputs can override the 45-second averaging interval so compress and vent operations can begin immediately, if needed.
• The 45-second averaging interval is used to keep the control module from making unneeded corrections.
• When a vehicle at the correct rear trim height hits a bump, the air suspension height sensor output will read low and high in addition to trim until the oscillations die out.
• If the control module were to correct for these "bump induced readings", system duty cycle would increase unnecessarily.
• The 45-second averaging interval not only eliminates corrections due to bumps, but also eliminates unneeded corrections resulting from braking, accelerating, and turning. The control module tabulates the air suspension height sensor readings, and does not begin a compress or vent operation until the air suspension height sensor (5359) reads low or high for 45 seconds consistently.
• There are more restrictions on vent operations than there are on compress operations.
• To eliminate the chance of catching a door on a curb as the vehicle vents down, the control module will not allow any venting to occur when a door is open.
• The control module does not allow any vent operations for the first 45 seconds after the ignition switch (11572) has been turned to RUN.
  • Even if a vehicle is extremely high in the rear, DO NOT expect it to vent until the ignition switch has been turned to RUN for 45 seconds.

I have the same problem with my 2001 Tahoe. The front blower is working, its blowing strong, but its cold air even with the temp setting as high as it can get. The rear blows hot air. The engine temp guage is at about 210ish which is close to being normal (220). I just replaced the thermostate a few months ago, I don't know if its bad again, or it I deluted the antifreeze too much and it frooze the heater core, or if the heater core just went bad. Any one know what the cause could be?

do you have a auto leveling system?

Converting from the air ride suspension to the passive coil spring suspension will eliminate this problem. To fix your air system you will have to purchase the parts directly from the dealer which means the prices will be severely inflated. Check out Strutmasters website at: http://www.strutmasters.com/Cadillac-Eldorado-Air-Suspension-Rear-Conversion-R-p/-cad-r5ns-el.htm My Uncle converted his Cadillac Deville two years and has only had positive things to say about the effects! I hope this advice was of some help.