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TSB 96-17-10 Refrigerant Substitution
Publication Date: AUGUST 12, 1996

FORD: 1980-93 CROWN VICTORIA
1981-93 ESCORT
1982-83 FAIRMONT
1982-88 EXP
1982-93 MUSTANG, THUNDERBIRD
1983-86 LTD
1984-94 TEMPO
1986-93 TAURUS
1988-93 FESTIVA
1989-93 PROBE
LINCOLN-MERCURY: 1980-93 GRAND MARQUIS, TOWN CAR
1981-87 LYNX
1982-83 LN7, ZEPHYR
1982-86 CAPRI
1982-93 COUGAR
1982-94 CONTINENTAL
1983-86 MARQUIS
1984-92 MARK VII
1984-94 TOPAZ
1986-93 SABLE
1991-93 CAPRI, TRACER
MERKUR: 1985-89 XR4TI
1988-90 SCORPIO
LIGHT TRUCK: 1980-93 BRONCO, ECONOLINE, F SUPER DUTY, F-150-350 SERIES
1983-93 RANGER
1984-90 BRONCO II
1986-93 AEROSTAR
1988-93 F-47
1991-93 EXPLORER
1993 VILLAGER
MEDIUM/HEAVY TRUCK: 1985-94 CARGO SERIES, F & B SERIES, L SERIES

ISSUE: A number of manufacturers are producing refrigerant products which are described as being direct replacements for refrigerant R-12.

ACTION: If service is required, use only new or of known quality recycled refrigerant R-12. Ford Motor Company has approved R-134a as the only refrigerant substitute for R-12.
CAUTION: USING ANY UNAUTHORIZED SUBSTITUTE REFRIGERANT FOR R-12 MAY RESULT IN SEVERE DAMAGE TO THE A/C SYSTEM COMPONENTS.

INFORMATION FROM THE EPA
This information has been taken from EPA documents to address Ford specific applications and recommendations. Further EPA information on ozone-depleting substances and regulations regarding its handling can be found on the Internet at World Wide Web site: http://www.epa.gov/ozone/

In 1994, EPA established the Significant New Alternatives Policy (SNAP) program to review alternatives to ozone-depleting susbstances like R-12. EPA examines new substitutes for their ozone depleting, global warming, flammability, and toxicity characteristics. The SNAP process does not test these substitutes for A/C system compatibility, reliability, durability, or performance.

Under the SNAP rule, each new refrigerant must be used in accordance with the following conditions:
* Unique Fittings - Each new refrigerant must be used with a unique set of fittings to prevent the accidental mixing of different refrigerants.
* Unique Equipment - Each refrigerant must have dedicated recovery/recycling equipment for that refrigerant.
* Labels - Whether a vehicle is originally designed to use a new refrigerant or is retrofitted, the technician must apply a detailed label giving specific information about the alternative. This label covers up information about the old refrigerant and provides valuable details on the alternative and how it was used. The technician is required to fill in their name, company performing the retrofit, address and the date retrofitted.
* Remove Original Refrigerant - The original R-12 must be removed from the system prior to charging with the new refrigerant. This will guarantee that the largest amount of clean R-12 is available for use in vehicles that still need it.

A summary of the refrigerants reviewed under EPA's SNAP program for use in motor vehicle air conditioning systems is in the table. Additional refrigerants are listed below.

Brand Name (1) Status (2) Date : Reason Unacceptable
Ikon-12 ASU 5/22/96 : Composition claimed as confidential business information.
OZ-12 UNA 3/18/94 : Flammable blend of hydrocarbons; insuffcient data to demonstrate safety.
R-176 UNA 3/18/94 : Contains CFC-12, which is inappropriate in a CFC-12 substitute.
HC-12a UNA 6/13/95 : Flammable blend of hydrocarbons; insufficient data to demonstrate safety.
R-405A UNA 6/13/95 : Contains a perfluorocarbon, which has extremely high global warming potential and lifetime.

(1) R-401A (made by DuPont), R-401B (DuPont), R-409A (Elf Atochem), Care 30 (Calor Gas), Adak-29/Adak-12 (TACIP International) and ES-12R (Intervest) have not been submitted for review in motor vehicle air conditioning, and it is therefore illegal to use them in such systems.
(2) See article for details on legality of use according to Status:
* ASU = acceptable subject to fittings, labeling, and no drop-in use conditions
* P = proposed acceptable subject to use conditions; open to public comment so decision is not final
* UNA = unacceptable; illegal for use as CFC-12 ubtitutes in motor vehicle air conditioners
(3) Freezone contains 2% of a lubricant
(4) Additional use condition: MUST BE USED WITH BARRIER HOSES

OTHER APPLICABLE ARTICLES: 91-09-07 , 96-15-07
SUPERSEDES: 93-23-11
WARRANTY STATUS: INFORMATION ONLY

For other TSBs, check here.
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TSB 91-20-12 A/C Pressure Relief Leak
Publication Date: OCTOBER 2, 1991

LIGHT TRUCK: 1987-91 BRONCO, F-150-350 SERIES
1988-91 F SUPER DUTY, F-47

ISSUE: There may be a loss of A/C refrigerant through the A/C compressor high relief valve during idle and stop-and-go traffic conditions. Eventually, there may be a lack of cooling and oil stains may appear around the A/C compressor high pressure relief valve.

The excessive discharge pressure is caused by the recirculation of higher temperature engine compartment air passing through the condenser during idle and stop-and-go traffic conditions. Normally, cooler ambient air passes through the condenser. Since the refrigerant in the condenser cannot be sufficiently cooled by this high temperature air, excessive head pressures are created causing refrigerant to be vented through the high pressure relief valve.

ACTION: Replace the radiator lower air shield, located between the lower radiator support and the front bumper, with a new radiator lower air deflector ( F1TZ-8327-B ). This new air deflector is larger than the old air shield and will minimize the amount of hot air recirculation through the condenser. Refer to the 1991 Bronco, Econoline, F-Series, F-Super Duty Truck Shop Manual, Section 01-08, for service details.

NOTE: TO REPLACE THE DEFLECTOR ON OLDER VEHICLES, IT WILL BE NECESSARY TO DRILL HOLES, FOLLOWING THE HOLE PATTERN IN THE NEW DEFLECTOR, BEFORE IT CAN BE ATTACHED.

PART NUMBER PART NAME
F1TZ-8327-B Radiator Lower Air Deflector

OTHER APPLICABLE ARTICLES: NONE
SUPERSEDES: 91-14-13
WARRANTY STATUS: Eligible Under Basic Warranty Coverage

OPERATION DESCRIPTION TIME
912012A Install New Air Deflector 0.4 Hr.

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TSB 94-19-20 R-134a Charge
Publication Date: SEPTEMBER 21, 1994

LIGHT TRUCK: 1994-95 BRONCO, F-150-350 SERIES, F-47

ISSUE: Ford Climate Control Division has increased the refrigerant charge in the subject vehicles from 2 lbs. 1 oz. to 2 lbs. 6 ozs.

ACTION: When service to the A/C system is required, recharge the A/C system with 2 lbs. 6 oz. of R-134a. Make the necessary corrections to the 1994-95 Service Manuals, pages 12-00-35, 12-03A-58 for 1994 and 12-00-39, 12-03A-56 for 1995.

Obtain an Authorized Modifications Decal and list the date, dealer number, and summary of alterations performed. Select a prominent place adjacent to the Vehicle Emission Control Information Decal suitable for installing the Authorized Modifications Decal. Clean the area, install the decal, and cover it with a clear plastic decal shield.

OTHER APPLICABLE ARTICLES: NONE
WARRANTY STATUS: INFORMATION ONLY

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TSB 93-8-13 Replacement A/C Vacuum Reservoir
Publication Date: APRIL 14, 1993

LIGHT TRUCK: 1992-93 BRONCO, F-150-350 SERIES

ISSUE: The vacuum tank for the heater or heater/air conditioning controls is sonically welded to the side of the heater or evaporator case. If a vacuum leak occurs at the vacuum tank, a different vacuum tank can be used to make the repair without removing the old vacuum tank.

ACTION: Install a new service vacuum tank. Refer to the following procedure for service details.

SERVICE PROCEDURE
1. In the engine compartment, detach the vacuum hose from the sonically welded vacuum tank on the heater or evaporator case.
2. Attach the replacement vacuum tank (F3TZ-19D848-A) in a conveniently located spot that can be reached by the vacuum hose. Several areas are available:
a. On the old sonically welded tank, drill an appropriate size hole in the old vacuum tank and use a self-tapping screw to attach the new replacement vacuum tank. The replacement vacuum tank (F3TZ-19D848-A) has slots which will accept the screws.
b. Attach the replacement vacuum tank and put on the vacuum hose.
3. If the old tank mount location is not suitable, locate an existing screw on the blower case and put the replacement vacuum tank (F3TZ-19D484-A) with its slotted bracket in a position over the screw.
a. Make sure of the following points:
* There is room for the tank.
* The vacuum hose will reach it.
* The replacement tank can be attached with that screw.
b. If necessary, rework the slot on the replacement vacuum tank so the screw will fit through it.
c. Attach the replacement vacuum tank and put on the vacuum hose.
4. Verify that the system operates properly.

PART NUMBER PART NAME
F3TZ-19D848-A Vacuum Tank

OTHER APPLICABLE ARTICLES: NONE
WARRANTY STATUS: Eligible Under Bumper To Bumper Warranty Coverage

OPERATION DESCRIPTION TIME
930813A Install Replacement Vacuum Tank 0.3 Hr.

See also: