3.9L-2V Federal & California N-Body Information
3.9L-2V FEDERAL N-BODY (HCR3.9T2HGC4)ALTITUDE EMISSION CHANGES REQUIRE THE FOLLOWING PARTS AND PROCEDURES:
A. Early Federal 4 x 2 Models with MDH prior to 07-28-08.
PARTS REQUIRED
ITEM QUANTITY MANUAL AUTOMATIC
Carburetor 1 --- 4324651
VECI Update Label 1 4275084 4275084
All parts are to be ordered separately.
REPAIR PROCEDURE
1. Remove original carburetor and install new carburetor, PN 4324651, per instructions in service manual (automatic only).
2. Reset idle specifications as follows:
MANUAL AUTOMATIC
Idle RPM 700 ---
Propane RPM 720 ---
Choke Vacuum Kick --- .130"
3. Type "This vehicle has been modified to meet Altitude Emission Standards" on the VECI Update Label, PN 4275084, and affix near existing VECI Label.
B. Late Federal 4 x 2 Models with MDH after 07-28-08.
PARTS REQUIRED
ITEM QUANTITY MANUAL AUTOMATIC
Carburetor 1 4324654 4324651
VECI Update Label 1 4275084 4275084
All parts are to be ordered separately.
REPAIR PROCEDURE
1. Install carburetor, PN 4324654 or 4324651, per instructions in the service manual.
2. Reset specifications as follows:
MANUAL AUTOMATIC
Idle RPM 700 ---
Propane RPM 720 ---
Choke Vacuum Kick --- .130"
3. Type "This vehicle has been modified to meet Altitude Emission Standards" on the VECI Update Label, PN 4275084, and affix near original VECI Label.
C. Federal 4 x 4 Models (All)
PARTS REQUIRED
ITEM QUANTITY AUTOMATIC MANUAL
Carburetor 1 4324651 4324654
ESA Module 1 --- 4379251
VECI Update Label 1 4275084 4275084
All parts are to be ordered separately.
REPAIR PROCEDURE
1. Install carburetor, PN 4324654 or 4324651, per instructions in the service manual.
2. Install ESA module, PN 4379251 (manual transmission only), per the service manual.
3. Reset specifications as follows:
MANUAL AUTOMATIC
Idle RPM 700 ---
Propane RPM 720 ---
Choke Vacuum Kick --- .130"
4. Type "This vehicle has been modified to meet Altitude Emissions Standards" on VECI Update Label, PN 4275084, and affix near VECI label.
3.9L-2V CALIFORNIA N-BODY (HCR3.9T2HFR8)
ALTITUDE EMISSION CHANGES REQUIRE THE FOLLOWING PARTS AND PROCEDURES:
A. Early California 4 x 2 Models with MDH prior to 07-28-08.
PARTS REQUIRED
ITEM QUANTITY MANUAL AUTOMATIC
Carburetor 1 --- 4324651
EGR Valve (2.76 & 2.94 Axle) 1 4287451 4287451
(3.55 Axle) 1 4287451 4287454
ESA Module 1 4379192 4379190
VECI Update Label 1 4275084 4275084
All parts are to be ordered separately.
REPAIR PROCEDURE
1. Install carburetor, PN 4324651, per instructions in the service manual (automatic only).
2. Install EGR valve, PN 4287451 or 4287454, per instructions in the service manual.
3. Install the ESA module, PN 4379190 or 4379192, per instructions in the service manual.
4. Reset specifications as follows:
MANUAL AUTOMATIC
Idle RPM 700 ---
Propane RPM 720 ---
Choke Vacuum Kick --- .130"
5. Type "This vehicle has been modified to meet Altitude Emission Standards" on the VECI Update Label, PN 4275084, and affix near the original VECI Label.
B. Late California 4 x 2 Models with MDH after 07-28-08.
PARTS REQUIRED
ITEM QUANTITY MANUAL AUTOMATIC
Carburetor 1 4324654 4324651
ESA Module 1 4379192 4379190
EGR Valve (2.76 & 2.94 Axle) 1 4287451 4287451
(3.55 Axle) 1 4287451 4287454
VECI Update Label 1 4275084 4275084
All parts are to be ordered separately.
REPAIR PROCEDURE
1. Install carburetor, PN 4324654 or 4324651, ESA module, PN 4379190 or 4379192, and EGR valve, PN 4287451 or 4287454, per instructions in service manual.
2. Reset specifications as follows:
MANUAL AUTOMATIC
Idle RPM 700 ---
Propane RPM 720 ---
Choke Vacuum Kick --- .130"
3. Type "This vehicle has been modified to meet Altitude Emission Standards" on the VECI Update Label, PN 4275084, and affix near the original VECI Label.
C. California 4 x 4 Models (All). Altitude emissions changes require the following parts.
PARTS REQUIRED
ITEM QUANTITY AUTOMATIC MANUAL
Carburetor 1 4324651 4324654
ESA Module 1 4379190 4379251
EGR Valve (2.76 & 2.94 Axle) 1 4287451 4287453
(3.55 Axle) 1 4287454 4287453
VECI Update Label 1 4275084 4275084
All parts are to be ordered separately.
REPAIR PROCEDURE
1. Replace carburetor with PN 4324654 or 4324651, per instructions in the service manual.
2. Replace the ESA module with PN 4379190 or PN 4379251, per instructions in the service manual.
3. Replace the EGR valve with PN 4287451, 4287453, or 4287454, per instructions in service manual, being certain to use the proper part number for the application.
4. Reset specifications as follows:
MANUAL AUTOMATIC
Idle RPM 700 ---
Propane RPM 720 ---
Choke Vacuum Kick --- .130"
5. Type "This vehicle has been modified to meet Altitude Emission Standards" on the VECI Update Label, PN 4275084, and affix near existing VECI Label.