Suburban 1/2 Ton 2WD V8-379 6.2L DSL (1986)
Diesel MFI Pump: Customer Interest
Diesel Engine - Downhill/Deceleration Surge
GMC NUMBER:
87-T-101
GROUP:
6C - Engine Fuel
DATE:
November, 1987
CORPORATE
NUMBER:
766305
SUBJECT:
DOWNHILL/DECELERATION SURGE
MODELS:
1982 - 87 C/K, R/V, G, P WITH 6.2L DIESEL ENGINES
THIS BULLETIN CANCELS AND SUPERSEDES TRUCK SERVICE BULLETIN 86- B-7 DATED OCTOBER, 1985/CHEVROLET BULLETIN
85-150, DATED NOVEMBER, 1985, ALL COPIES OF WHICH SHOULD BE DESTROYED.
Some vehicles may experience vehicle surge when descending a hill or in a deceleration mode. New parts have been designed to alleviate vehicle surge
problems. The parts are available only through authorized Stanadyne Diesel System (SDS) distributors and dealers. The, parts include a delivery valve
spring, redesigned stop, and a new flatted delivery valve.
Parts required:
Description
SDS#
Delivery valve spring
26071
Delivery valve stop
26070
Delivery valve - all models
26833
except G-Van
Delivery valve - G-Van
28012
Prior to removing a pump for repair, contact an authorized SDS distributor or dealer
to ensure the new parts are in their stock. The injection pump must be removed from
the engine for completion of repairs.
