Bulletin Information

Bulletin Title: #99-07-30-016B - Diagnostic Information for Intermittent Transmission Downshift, Slip, Busy/Cycling TCC or Noisy Cooling Fan - (Oct 14, 2002)
Bulletin Type: Information
Applies To: Automatic Transmission

Applicable Vehicles

2003 HUMMER H2
2003 GMC Truck Yukon XL - 4WD
2003 GMC Truck Yukon XL - 2WD
2003 GMC Truck Yukon - 4WD
2003 GMC Truck Yukon - 2WD
2003 GMC Truck Sonoma Pickup - 4WD
2003 GMC Truck Sonoma Pickup - 2WD
2003 GMC Truck Savana - 2WD
2003 GMC Truck Safari - 4WD
2003 GMC Truck Safari - 2WD
2003 GMC Truck GMC K Sierra - 4WD
2003 GMC Truck GMC C Sierra - 2WD
2003 Chevrolet Tracker - 4WD
2003 Chevrolet Tracker - 2WD
2003 Chevrolet Tahoe - 4WD
2003 Chevrolet Tahoe - 2WD
2003 Chevrolet Suburban - 4WD
2003 Chevrolet Suburban - 2WD
2003 Chevrolet S10 Pickup - 4WD
2003 Chevrolet S10 Pickup - 2WD
2003 Chevrolet K Silverado - 4WD
2003 Chevrolet Express - AWD
2003 Chevrolet Express - 2WD
2003 Chevrolet C Silverado - 2WD
2003 Chevrolet Blazer - 4WD
2003 Chevrolet Blazer - 2WD
2003 Chevrolet Astro - 4WD
2003 Chevrolet Astro - 2WD
2003 Cadillac Escalade EXT
2003 Cadillac Escalade - AWD
2002 GMC Truck Yukon XL - 4WD
2002 GMC Truck Yukon XL - 2WD
2002 GMC Truck Yukon - 4WD
2002 GMC Truck Yukon - 2WD
2002 GMC Truck Sonoma Pickup - 4WD
2002 GMC Truck Sonoma Pickup - 2WD
2002 GMC Truck Savana - 2WD
2002 GMC Truck Safari - 4WD
2002 GMC Truck Safari - 2WD
2002 GMC Truck GMC K Sierra - 4WD
2002 GMC Truck GMC C Sierra - 2WD
2002 Chevrolet Tracker - 4WD
2002 Chevrolet Tracker - 2WD
2002 Chevrolet Tahoe - 4WD
2002 Chevrolet Tahoe - 2WD
2002 Chevrolet Suburban - 4WD
2002 Chevrolet Suburban - 2WD
2002 Chevrolet S10 Pickup - 4WD
2002 Chevrolet S10 Pickup - 2WD
2002 Chevrolet K Silverado - 4WD
2002 Chevrolet Express - 2WD
2002 Chevrolet C Silverado - 2WD
2002 Chevrolet Blazer - 4WD
2002 Chevrolet Blazer - 2WD
2002 Chevrolet Astro - 4WD
2002 Chevrolet Astro - 2WD
2002 Cadillac Escalade EXT
2002 Cadillac Escalade - AWD
2001 Oldsmobile Bravada
2001 GMC Truck Yukon XL - 4WD
2001 GMC Truck Yukon XL - 2WD
2001 GMC Truck Yukon - 4WD
2001 GMC Truck Yukon - 2WD
2001 GMC Truck Sonoma Pickup - 4WD
2001 GMC Truck Sonoma Pickup - 2WD
2001 GMC Truck Savana - 2WD
2001 GMC Truck Safari - 4WD
2001 GMC Truck Safari - 2WD
2001 GMC Truck GMC K Sierra - 4WD
2001 GMC Truck GMC C Sierra - 2WD
2001 GMC Truck Envoy - 4WD
2001 Chevrolet Tracker - 4WD
2001 Chevrolet Tracker - 2WD
2001 Chevrolet Tahoe - 4WD
2001 Chevrolet Tahoe - 2WD
2001 Chevrolet Suburban - 4WD
2001 Chevrolet Suburban - 2WD
2001 Chevrolet S10 Pickup - 4WD
2001 Chevrolet S10 Pickup - 2WD
2001 Chevrolet K Silverado - 4WD
2001 Chevrolet Express - 2WD
2001 Chevrolet C Silverado - 2WD
2001 Chevrolet Blazer - 4WD
2001 Chevrolet Blazer - 2WD
2001 Chevrolet Astro - 4WD
2001 Chevrolet Astro - 2WD
2000 Oldsmobile Bravada
2000 GMC Truck Yukon XL - 4WD
2000 GMC Truck Yukon XL - 2WD
2000 GMC Truck Yukon - 4WD
2000 GMC Truck Yukon - 2WD
2000 GMC Truck Sonoma Pickup - 4WD
2000 GMC Truck Sonoma Pickup - 2WD
2000 GMC Truck Savana - 2WD
2000 GMC Truck Safari - 4WD
2000 GMC Truck Safari - 2WD
2000 GMC Truck GMC K Sierra - 4WD
2000 GMC Truck GMC C Sierra - 2WD
2000 GMC Truck Envoy - 4WD
2000 Chevrolet Tracker - 4WD
2000 Chevrolet Tracker - 2WD
2000 Chevrolet Tahoe Z71
2000 Chevrolet Tahoe Limited
2000 Chevrolet Tahoe - 4WD
2000 Chevrolet Tahoe - 2WD
2000 Chevrolet Suburban - 4WD
2000 Chevrolet Suburban - 2WD
2000 Chevrolet S10 Pickup - 4WD
2000 Chevrolet S10 Pickup - 2WD
2000 Chevrolet K Silverado - 4WD
2000 Chevrolet Express - 2WD
2000 Chevrolet C Silverado - 2WD
2000 Chevrolet Blazer - 4WD
2000 Chevrolet Blazer - 2WD
2000 Chevrolet Astro - 4WD
2000 Chevrolet Astro - 2WD
2000 Cadillac Escalade - AWD
1999 Oldsmobile Bravada
1999 GMC Truck Yukon - 4WD
1999 GMC Truck Yukon - 2WD
1999 GMC Truck Sonoma Pickup - 4WD
1999 GMC Truck Sonoma Pickup - 2WD
1999 GMC Truck Savana - 2WD
1999 GMC Truck Safari - 4WD
1999 GMC Truck Safari - 2WD
1999 GMC Truck GMC K Sierra - 4WD
1999 GMC Truck GMC C Sierra - 2WD
1999 GMC Truck Envoy - 4WD
1999 Chevrolet Tracker - 4WD
1999 Chevrolet Tracker - 2WD
1999 Chevrolet Tahoe - 4WD
1999 Chevrolet Tahoe - 2WD
1999 Chevrolet Suburban - 4WD
1999 Chevrolet Suburban - 2WD
1999 Chevrolet S10 Pickup - 4WD
1999 Chevrolet S10 Pickup - 2WD
1999 Chevrolet K Silverado - 4WD
1999 Chevrolet Express - 2WD
1999 Chevrolet C Silverado - 2WD
1999 Chevrolet Blazer - 4WD
1999 Chevrolet Blazer - 2WD
1999 Chevrolet Astro - 4WD
1999 Chevrolet Astro - 2WD
1999 Cadillac Escalade - AWD
1998 Oldsmobile Bravada
1998 GMC Truck Yukon - 4WD
1998 GMC Truck Yukon - 2WD
1998 GMC Truck Sonoma Pickup - 4WD
1998 GMC Truck Sonoma Pickup - 2WD
1998 GMC Truck Savana - 2WD
1998 GMC Truck Safari - 4WD
1998 GMC Truck Safari - 2WD
1998 GMC Truck GMC Suburban - 4WD
1998 GMC Truck GMC Suburban - 2WD
1998 GMC Truck GMC K Pickup - 4WD
1998 GMC Truck GMC C Pickup - 2WD
1998 Chevrolet Tracker - 4WD
1998 Chevrolet Tracker - 2WD
1998 Chevrolet Tahoe - 4WD
1998 Chevrolet Tahoe - 2WD
1998 Chevrolet Suburban - 4WD
1998 Chevrolet Suburban - 2WD
1998 Chevrolet S10 Pickup - 4WD
1998 Chevrolet S10 Pickup - 2WD
1998 Chevrolet K Pickup - 4WD
1998 Chevrolet Express - 2WD
1998 Chevrolet C Pickup - 2WD
1998 Chevrolet Blazer - 4WD
1998 Chevrolet Blazer - 2WD
1998 Chevrolet Astro - 4WD
1998 Chevrolet Astro - 2WD
1997 Oldsmobile Bravada
1997 GMC Truck Yukon - 4WD
1997 GMC Truck Yukon - 2WD
1997 GMC Truck Sonoma Pickup - 4WD
1997 GMC Truck Sonoma Pickup - 2WD
1997 GMC Truck Savana - 2WD
1997 GMC Truck Safari - 4WD
1997 GMC Truck Safari - 2WD
1997 GMC Truck GMC Suburban - 4WD
1997 GMC Truck GMC Suburban - 2WD
1997 GMC Truck GMC K Pickup - 4WD
1997 GMC Truck GMC C Pickup - 2WD
1997 Geo Tracker - 4WD
1997 Geo Tracker - 2WD
1997 Chevrolet Tahoe - 4WD
1997 Chevrolet Tahoe - 2WD
1997 Chevrolet Suburban - 4WD
1997 Chevrolet Suburban - 2WD
1997 Chevrolet S10 Pickup - 4WD
1997 Chevrolet S10 Pickup - 2WD
1997 Chevrolet K Pickup - 4WD
1997 Chevrolet Express - 2WD
1997 Chevrolet C Pickup - 2WD
1997 Chevrolet Blazer - 4WD
1997 Chevrolet Blazer - 2WD
1997 Chevrolet Astro - 4WD
1997 Chevrolet Astro - 2WD
1996 Oldsmobile Bravada
1996 GMC Truck Yukon - 4WD
1996 GMC Truck Yukon - 2WD
1996 GMC Truck Sonoma Pickup - 4WD
1996 GMC Truck Sonoma Pickup - 2WD
1996 GMC Truck Safari - 4WD
1996 GMC Truck Safari - 2WD
1996 GMC Truck GMC Suburban - 4WD
1996 GMC Truck GMC Suburban - 2WD
1996 GMC Truck GMC K Pickup - 4WD
1996 GMC Truck GMC G Van
1996 GMC Truck GMC C Pickup - 2WD
1996 Geo Tracker - 4WD
1996 Geo Tracker - 2WD
1996 Chevrolet Tahoe - 4WD
1996 Chevrolet Tahoe - 2WD
1996 Chevrolet Suburban - 4WD
1996 Chevrolet Suburban - 2WD
1996 Chevrolet S10 Pickup - 4WD
1996 Chevrolet S10 Pickup - 2WD
1996 Chevrolet K Pickup - 4WD
1996 Chevrolet G Van
1996 Chevrolet C Pickup - 2WD
1996 Chevrolet Blazer - 4WD
1996 Chevrolet Blazer - 2WD
1996 Chevrolet Astro - 4WD
1996 Chevrolet Astro - 2WD
1995 Oldsmobile Bravada
1995 GMC Truck Yukon - 4WD
1995 GMC Truck Yukon - 2WD
1995 GMC Truck Sonoma Pickup - 4WD
1995 GMC Truck Sonoma Pickup - 2WD
1995 GMC Truck Safari - 4WD
1995 GMC Truck Safari - 2WD
1995 GMC Truck GMC Suburban - 4WD
1995 GMC Truck GMC Suburban - 2WD
1995 GMC Truck GMC K Pickup - 4WD
1995 GMC Truck GMC C Pickup - 2WD
1995 Geo Tracker - 4WD
1995 Geo Tracker - 2WD
1995 Chevrolet Tahoe - 4WD
1995 Chevrolet Tahoe - 2WD
1995 Chevrolet Suburban - 4WD
1995 Chevrolet Suburban - 2WD
1995 Chevrolet S10 Pickup - 4WD
1995 Chevrolet S10 Pickup - 2WD
1995 Chevrolet K Pickup - 4WD
1995 Chevrolet C Pickup - 2WD
1995 Chevrolet Blazer - 4WD
1995 Chevrolet Blazer - 2WD
1995 Chevrolet Astro - 4WD
1995 Chevrolet Astro - 2WD
1994 Oldsmobile Bravada
1994 GMC Truck Safari - 4WD
1994 GMC Truck Safari - 2WD
1994 GMC Truck S15 Pickup - 4WD
1994 GMC Truck S15 Pickup - 2WD
1994 GMC Truck GMC Suburban - 4WD
1994 GMC Truck GMC Suburban - 2WD
1994 GMC Truck GMC K Pickup - 4WD
1994 GMC Truck GMC C Pickup - 2WD
1994 Geo Tracker - 4WD
1994 Geo Tracker - 2WD
1994 Chevrolet Suburban - 4WD
1994 Chevrolet Suburban - 2WD
1994 Chevrolet S10 Pickup - 4WD
1994 Chevrolet S10 Pickup - 2WD
1994 Chevrolet K Pickup - 4WD
1994 Chevrolet C Pickup - 2WD
1994 Chevrolet Blazer - 4WD
1994 Chevrolet Blazer - 2WD
1994 Chevrolet Astro - 4WD
1994 Chevrolet Astro - 2WD
1993 Oldsmobile Bravada
1993 GMC Truck Safari - 4WD
1993 GMC Truck Safari - 2WD
1993 GMC Truck S15 Pickup - 4WD
1993 GMC Truck S15 Pickup - 2WD
1993 GMC Truck GMC Suburban - 4WD
1993 GMC Truck GMC Suburban - 2WD
1993 GMC Truck GMC K Pickup - 4WD
1993 GMC Truck GMC C Pickup - 2WD
1993 Geo Tracker - 4WD
1993 Geo Tracker - 2WD
1993 Chevrolet Suburban - 4WD
1993 Chevrolet Suburban - 2WD
1993 Chevrolet S10 Pickup - 4WD
1993 Chevrolet S10 Pickup - 2WD
1993 Chevrolet K Pickup - 4WD
1993 Chevrolet C Pickup - 2WD
1993 Chevrolet Blazer - 4WD
1993 Chevrolet Blazer - 2WD
1993 Chevrolet Astro - 4WD
1993 Chevrolet Astro - 2WD
1992 Oldsmobile Bravada
1992 GMC Truck Safari - 4WD
1992 GMC Truck Safari - 2WD
1992 GMC Truck S15 Pickup - 4WD
1992 GMC Truck S15 Pickup - 2WD
1992 GMC Truck GMC Suburban - 4WD
1992 GMC Truck GMC Suburban - 2WD
1992 GMC Truck GMC K Pickup - 4WD
1992 GMC Truck GMC C Pickup - 2WD
1992 Geo Tracker - 4WD
1992 Geo Tracker - 2WD
1992 Chevrolet Suburban - 4WD
1992 Chevrolet Suburban - 2WD
1992 Chevrolet S10 Pickup - 4WD
1992 Chevrolet S10 Pickup - 2WD
1992 Chevrolet K Pickup - 4WD
1992 Chevrolet C Pickup - 2WD
1992 Chevrolet Blazer - 4WD
1992 Chevrolet Blazer - 2WD
1992 Chevrolet Astro - 4WD
1992 Chevrolet Astro - 2WD
1991 Oldsmobile Bravada
1991 GMC Truck Safari - 4WD
1991 GMC Truck Safari - 2WD
1991 GMC Truck S15 Pickup - 4WD
1991 GMC Truck S15 Pickup - 2WD
1991 GMC Truck GMC Suburban - 4WD
1991 GMC Truck GMC Suburban - 2WD
1991 GMC Truck GMC K Pickup - 4WD
1991 GMC Truck GMC C Pickup - 2WD
1991 Geo Tracker - 4WD
1991 Geo Tracker - 2WD
1991 Chevrolet Suburban - 4WD
1991 Chevrolet Suburban - 2WD
1991 Chevrolet S10 Pickup - 4WD
1991 Chevrolet S10 Pickup - 2WD
1991 Chevrolet K Pickup - 4WD
1991 Chevrolet C Pickup - 2WD
1991 Chevrolet Blazer - 4WD
1991 Chevrolet Blazer - 2WD
1991 Chevrolet Astro - 4WD
1991 Chevrolet Astro - 2WD
1990 GMC Truck Safari - 4WD
1990 GMC Truck Safari - 2WD
1990 GMC Truck S15 Pickup - 4WD
1990 GMC Truck S15 Pickup - 2WD
1990 GMC Truck GMC Suburban - 4WD
1990 GMC Truck GMC Suburban - 2WD
1990 GMC Truck GMC K Pickup - 4WD
1990 GMC Truck GMC C Pickup - 2WD
1990 Geo Tracker - 4WD
1990 Chevrolet Suburban - 4WD
1990 Chevrolet Suburban - 2WD
1990 Chevrolet S10 Pickup - 4WD
1990 Chevrolet S10 Pickup - 2WD
1990 Chevrolet K Pickup - 4WD
1990 Chevrolet C Pickup - 2WD
1990 Chevrolet Blazer - 4WD
1990 Chevrolet Blazer - 2WD
1990 Chevrolet Astro - 4WD
1990 Chevrolet Astro - 2WD
1989 GMC Truck Safari - 2WD
1989 GMC Truck S15 Pickup - 4WD
1989 GMC Truck S15 Pickup - 2WD
1989 GMC Truck GMC Suburban - 4WD
1989 GMC Truck GMC Suburban - 2WD
1989 GMC Truck GMC K Pickup - 4WD
1989 GMC Truck GMC C Pickup - 2WD
1989 Geo Tracker - 4WD
1989 Chevrolet Suburban - 4WD
1989 Chevrolet Suburban - 2WD
1989 Chevrolet S10 Pickup - 4WD
1989 Chevrolet S10 Pickup - 2WD
1989 Chevrolet K Pickup - 4WD
1989 Chevrolet C Pickup - 2WD
1989 Chevrolet Blazer - 4WD
1989 Chevrolet Blazer - 2WD
1989 Chevrolet Astro - 2WD
1988 GMC Truck Safari - 2WD
1988 GMC Truck S15 Pickup - 4WD
1988 GMC Truck S15 Pickup - 2WD
1988 GMC Truck GMC Suburban - 4WD
1988 GMC Truck GMC Suburban - 2WD
1988 GMC Truck GMC K Pickup - 4WD
1988 GMC Truck GMC C Pickup - 2WD
1988 Chevrolet Suburban - 4WD
1988 Chevrolet Suburban - 2WD
1988 Chevrolet S10 Pickup - 4WD
1988 Chevrolet S10 Pickup - 2WD
1988 Chevrolet K Pickup - 4WD
1988 Chevrolet C Pickup - 2WD
1988 Chevrolet Blazer - 4WD
1988 Chevrolet Blazer - 2WD
1988 Chevrolet Astro - 2WD

#99-07-30-016B - Diagnostic Information for Intermittent Transmission Downshift, Slip, Busy/Cycling TCC or Noisy Cooling Fan - (Oct 14, 2002)

Subject:
Diagnostic Information For Intermittent Transmission Downshift, Slip, Busy/Cycling TCC or Noisy Cooling Fan
Models:
1999-2000 Cadillac Escalade
2002-2003 Cadillac Escalade, Escalade EXT
1988-2003 Chevrolet Astro, Blazer, S-10, Silverado, Suburban
1989-2003 Chevrolet/Geo Tracke...

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Document Title: #99-07-30-016B - Diagnostic Information for Intermittent Transmission Downshift, Slip, Busy/Cycling TCC or Noisy Cooling Fan - (Oct 14, 2002)

information

intermittent

transmission

downshift

slip

cycling

cooling

escalade

chevrolet

bulletin

section

engine

condition

vehicle

hours

following

clutch

level

described

further

customer

ambient

when

operating

service

procedure

operation

sound

speed

temperature

related

noise

fluid

thermostatic

engages

drive

radiator

coolant

increase

automatic

airflow

engine coolant

coolant temperature

increase engine

automatic transmission

engine coolant temperature

procedure shows condition