1992 Cadillac Eldorado A/C & Heater Service (ONLINE REPAIR MANUALS)

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A/C & HEATER SERVICE PROCEDURES FOR 1992 Cadillac Eldorado AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 1992 Cadillac Eldorado cars and light trucks from 1990+

Cooling Fans -> Passenger Cars Except Saturn -> LUMINA -> COMPONENT REPLACEMENT -> Coolant Fan, Replace -> DESCRIPTION -> Primary Cooling Fan Does Not Run -> Primary Cooling Fan Runs Continuously w/Engine Coolant Cool & A/C Mode Selector Off -> Secondary Cooling Fan Does Not Run -> Secondary Cooling Or Generator Fan Runs Continuously w/Engine Coolant Cool & A/C Mode Selector Off -> System Diagnosis -> SYSTEM DIAGNOSIS & TESTING -> TROUBLESHOOTING
Vehicle: 1992 Cadillac Eldorado 4.9 V8 GAS

DESCRIPTION

Each coolant fan is controlled by individual cooling fan relays. The primary cooling fan relay coil is grounded through the ECM when vehicle speed is less than the speed set by the ECM and the coolant temperature reaches 227°F with the A/C off, and 223°F with A/C on. The primary cooling fan runs until the ignition switch is turned off, or coolant temperature decreases to 220°F with A/C off, or 216°F with A/C on.

The secondary cooling fan relay coil is grounded through the ECM when the coolant temperature reaches 245°F. The contacts close and voltage is applied...

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A/C & HEATER SERVICE PROCEDURES FOR 1992 Cadillac Eldorado AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 1992 Cadillac Eldorado cars and light trucks from 1990+

Cooling Fans -> Passenger Cars Except Saturn -> CAMARO & FIREBIRD -> 3.1L (VIN T) ENGINE -> 3.1L (VIN T), 3.4L (VIN S), 5.0L (VIN F) & 5.7L (VIN 8) Engines -> 5.0L (VIN E) ENGINE -> 5.0L (VIN F) & 5.7L (VIN 8) ENGINES -> 5.7L (VIN P) Engine -> COMPONENT REPLACEMENT -> Coolant Fan, Replace -> DESCRIPTION -> SYSTEM CHECK -> SYSTEM DIAGNOSIS -> SYSTEM DIAGNOSIS & TESTING -> Test A: Coolant Fan Does Not Turn On -> Test A: Coolant Fan Open Test -> Test B: Coolant Fan A/C Open -> Test B: Coolant Fan Does Not Turn Off With Engine Coolant Cool, A/C Mode Selector OFF & Ignition Switch In RUN Position -> Test B: Coolant Fan Does Not Turn Off With Engine Coolant Cool, A/C Off And Ignition Switch In RUN Position -> Test C: Coolant Fan Does Not Turn Off -> Test C: Coolant Fan Does Not Turn On With A/C Mode Selector ON & Head Pressure Above 233 psi, But Does Run With Engine Hot -> Test C: Coolant Fan Does Not Turn On With A/C On And Head Pressure Above 223 psi, But Does Turn On With Engine Hot -> Test D: Coolant Fan & Auxiliary Coolant Fan Open Test -> TROUBLESHOOTING
Vehicle: 1992 Cadillac Eldorado 4.9 V8 GAS

DESCRIPTION

3.1L (VIN T), 3.4L (VIN S), 5.0L (VIN F) & 5.7L (VIN 8) Engines

The coolant fan is controlled by the ECM. In the 6 cylinder, the coolant fan is also controlled by the redundant cooling fan switch. When the ECM grounds circuit 335, the coolant fan relay is energized and battery voltage is applied to the coolant fan. If the ECM fails on the 6 cylinder engine, the redundant coolant fan switch will ground the 335 circuit and energize the coolant fan relay. The ECM will ground the coolant fan relay when the coolant temperature sensor indicates the coola...

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A/C & HEATER SERVICE PROCEDURES FOR 1992 Cadillac Eldorado AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 1992 Cadillac Eldorado cars and light trucks from 1990+

Cooling Fans -> Passenger Cars Except Saturn -> DEVILLE & 1992 FLEETWOOD -> COMPONENT REPLACEMENT -> Coolant Fan, Replace -> Coolant Fans Do Not Operate -> Coolant Fans Do Not Operate At High Speed -> Coolant Fans Do Not Operate At Low Speed -> DESCRIPTION -> SYSTEM DIAGNOSIS & TESTING
Vehicle: 1992 Cadillac Eldorado 4.9 V8 GAS

DESCRIPTION

This system uses two coolant fans, wired in parallel, both fans run whenever cooling is required.

The Powertrain Control Module (PCM) has two coolant fan outputs, one each for high and low speed. When PCM low speed output is turned on at connector C2 (terminal 11), it grounds the low speed coolant fan relay's coil. If ignition switch is in the RUN position, the relay's contacts close, completing the circuit to the cooling fans. The coolant fan resistor lowers voltage to the left side coolant fan, which causes it to run at low speed. Since the...

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A/C & HEATER SERVICE PROCEDURES FOR 1992 Cadillac Eldorado AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 1992 Cadillac Eldorado cars and light trucks from 1990+

Cooling Fans -> Passenger Cars Except Saturn -> ELDORADO & SEVILLE -> 4.6L Engine -> 4.9L Engine -> COMPONENT REPLACEMENT -> Coolant Fan, Replace -> DESCRIPTION -> HIGH SPEED CONDITIONS -> HIGH SPEED OPERATION -> LOW SPEED CONDITIONS -> LOW SPEED OPERATION -> SYSTEM DIAGNOSIS & TESTING
Vehicle: 1992 Cadillac Eldorado 4.9 V8 GAS

DESCRIPTION

The powertrain control module (PCM) controls both cooling fans by controlling three relays through two outputs. There are two modes of cooling fan operation, low speed and high speed. In the low speed mode the cooling fans are powered in series, cooling fan relay 1 is energized by the PCM and both cooling fans run at low speed. In the high speed mode the cooling fans are powered in parallel which allows the fans to run at high speed. Cooling fans operate only when the ignition is in run.

SYSTEM DIAGNOSIS & TESTING

LOW SPEED CONDITIONS
4...

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A/C & HEATER SERVICE PROCEDURES FOR 1992 Cadillac Eldorado AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 1992 Cadillac Eldorado cars and light trucks from 1990+

Orifice Tube/Expansion Valve Locations -> Domestic Passenger Cars -> 1992-95
Vehicle: 1992 Cadillac Eldorado 4.9 V8 GAS

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A/C & HEATER SERVICE PROCEDURES FOR 1992 Cadillac Eldorado AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 1992 Cadillac Eldorado cars and light trucks from 1990+

Vacuum & Wiring Diagrams -> Passenger Cars -> Air Conditioning System Vacuum Circuits
Vehicle: 1992 Cadillac Eldorado 4.9 V8 GAS

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Click here to view more details1993 Cadillac Eldorado Throttle Position Sensor, Blade type; 3-prong male terminal; A high quality, direct fit OE replacement throttle position sensor; With 2 years limited Trustbuilt warranty..

Source: Auto Body Parts Store

$35.49

Click here to view more details about 1985 Cadillac Eldorado Headlight, Driver Or Passenger Side1985 Cadillac Eldorado Headlight, Driver Or Passenger Side, Bulbs included; Sealed beam and high beam type; Rectangular; DOT and SAE approved; A high quality, direct fit OE replacement headlight assembly..

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Click here to view more details1979 Cadillac Eldorado V8, 5.7 L, 350 CID Rebuilt Engine, Six bolt holes on exhaust side of head, 4-bolt main. Optional high-performance engine supplied with flat top pistons, performance cam, 194 intake valve heads, and high volume oil pump., Warranty: 3-Year/100,000 Mile, .

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Click here to view more details1992 Cadillac Eldorado Used Bumper Bar, Front, 2DR, MAR, TOURING, Very Good.

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