Emissions - EGR Valve and EGR Vacuum Modulator

REFERENCE: ENGINE

NUMBER: 015

DATE: 7-16-80

MODEL: TE72

TITLE: EGR VALVE AND EGR VACUUM MODULATOR

To improve driveability at cruise and light throttle acceleration, the EGR valve and/or EGR vacuum modulator have been modified on the following vehicles beginning with June, 1980 production.

CALIFORNIA SPEC. VEHICLE

Manual Transmission EGR valve and EGR vacuum modulator.
Automatic Transmission EGR valve.

FEDERAL SPEC. VEHICLE

Manual Transmission EGR vacuum modulator.

PRODUCTION EFFECTIVE:

From Engine Number

3T-4906537

From Frame Number Production Date

TE72-0078471 June, 1980
TE72-0528707 June, 1980
TE72-5031293 June, 1980

PART NUMBER INFORMATION:

Previous Part Number New Part Number Part Name

For California Spec. M/T Vehicle
S 25620-28050 25620-28051 Valve assy, EGR
S 25690-28020 25690-28030 Modulator assy, EGR vacuum

For California Spec. A/T Vehicle
(I) 25620-28050 25620-28051 Valve assy, EGR

For Federal Spec. M/T Vehicle
(I) 25690-28020 25690-28030 Modulator assy, EGR vacuum

(I) = The new part is interchangeable with the previous part.
S = The new parts and the previous parts are interchangeable as a group.