1998 GMC C7500 Recalls (2)

Campaign:
98V073000 on 04/08/1998
Component:
Electrical system:wiring:front underhood
Manufactured:
11/30/1997 - 05/30/1998
Affected:
1,590
Defect:
Vehicle description: medium duty trucks equipped with air brakes and anti-lock brake systems. chaffing of the electric brake control harness can occur resulting in an electrical grounding condition. this will illuminate a warning light on the instrument panel and shut off the abs feature.
Consequence:
This condition can cause reduced braking capability of the front brakes, increasing the risk of a crash.
Correction:
Dealers will inspect the harness for chaffing and proper routing and will repair if necessary.
Notes:
Owner notification began april 24, and july 30, 1998.owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact chevrolet at 1-800-222-1020 or gmc at 1-800-462-8782.also contact the national highway traffic safety administration's auto safety hotline at 1-888-dash-2-dot (1-888-327-4236).
Campaign:
00V232008 on 09/25/2000
Component:
Service brakes, air:antilock
Manufactured:
04/30/1997 - 09/29/1998
Affected:
30,000
Defect:
Vehicle description: school buses, medium duty trucks and tractors built with bendix air abs with an ec-17 1030r electronic control unit (ecu), there have been reports of unwanted abs activation at low speeds caused by 1) chafed abs wheel speed sensor wires on rotating parts or 2) a damaged component at the wheel end that generates a certain type of erratic sensor signal.
Consequence:
This condition could cause the abs ecu to exhaust the air at the air brake modulators for one or more of the wheels. this could result in extended braking distances and a possible crash.
Correction:
Dealers will replace the abs ecu.
Notes:
Owner notification began december 14, 2000 for the b7 series school buses and on march 15, 2001, for the medium duty trucks and tractors. owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact chevrolet at 1-800-222-1022 or gmc at 1-800-462-8782. also contact the national highway traffic safety administration's auto safety hotline at 1-888-dash-2-dot (1-888-327-4236).

1998 GMC C7500 TSBs (16)

Bulletin:
867118
Component:
103000 power train:automatic transmission
Summary:
Erratic or premature upshifts, harsh down shifts, engine lugging, or low power performance. *yc
Bulletin:
990620014
Component:
062100 engine and engine cooling:cooling system:radiator assembly
Summary:
On some medium duty conventional models, the radiator surge tank cap contacting underside of hood. *tt
Bulletin:
000863001A
Component:
160000 structure
Summary:
Some owners may comment on the cab assist step cracking around the mounting bolts. *tt
Bulletin:
000863001
Component:
160000 structure
Summary:
Some vehicles may experience on the cab assist step cracking around the mounting bolts. *mjs
Bulletin:
98019A
Component:
040000 service brakes, air
Summary:
Some vehicles equipped with air brakes and anti-lock brake systems, may exhibit brake control electrical harness chafing. *tt
Bulletin:
00015
Component:
120000 exterior lighting
Summary:
On some medium duty trucks equipped with a diesel engine, air brakes, and the engine shutdown feature, the multi-function alarm module may not perform certain features such as: no warning tone for air brake low pressure; no warning tone f
Bulletin:
000731001
Component:
101000 power train:clutch assembly
Summary:
Experiencing noisy release bearing, slipping clutch or inoerative clutch. *tt
Bulletin:
000604047
Component:
061100 engine and engine cooling:engine:gasoline
Summary:
Some medium duty models with 3126 caterpillar diesel engine and allison automatic transmission may exhibit an engine speed power takeoff (pto) operation returning to idle for no apparent reason. *tt
Bulletin:
000525004
Component:
036400 service brakes, hydraulic:antilock:abs warning light
Summary:
Some drivers may comment about the abs lamp illuminating. an abs diagnostic trouble code 0281 - brake switch circuit may have been set on those vehicles equipped with hydraulic brakes. the diagnostic trouble code will be stored in memor
Bulletin:
010843002
Component:
136000 visibility:windshield wiper/washer
Summary:
Some customers may comment that the windshield (w/s) washer reservoir shows an unexplained reduced fluid level after vehicle operation. *tt
Bulletin:
010603003
Component:
112000 electrical system:alternator/generator/regulator
Summary:
Some drivers may comment that the generator upper mounting bolt is breaking on certain conventional medium duty models. *tt
Bulletin:
010602013
Component:
062100 engine and engine cooling:cooling system:radiator assembly
Summary:
Some customers may comment that the radiator surge tank cap contacts the underside of the hood. *tt
Bulletin:
000601013A
Component:
061100 engine and engine cooling:engine:gasoline
Summary:
Information pertaining to the release of the exhaust manifold / turbocharger heat shield. *tt
Bulletin:
020729005
Component:
102000 power train:manual transmission
Summary:
Subject regarding vibration or transmission output shaft damage / oil seal leak on conventional cab medium duty models. *tt
Bulletin:
SB-06-02-32-013B
Component:
015100 steering:hydraulic power assist:pump
Summary:
Saab/hummer/gm: diagnostic tips/recommendations when power steering pump replacement is necessary. analysis of returned power steering (ps) pumps that had been replaced for noise, no power assist, no or low pressure and leaking conditio
Bulletin:
16NA260
Component:
353400 equipment:electrical:radio/tape deck/cd etc.
Summary:
This technical bulletin provides a procedure to reprogram the media disc player with the latest calibrations to correct a condition of the rear entertainment system not operating as intended in colder ambient temperature areas due to calibr

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