1990 Chevrolet Suburban TSBs
4 manufacturer communications for the 1990 Chevrolet Suburban sit in NHTSA's public file. A TSB is factory repair guidance, not a recall — the repair is not automatically free. The 1990 Suburban problem report covers complaints, recalls, and investigations.
What the bulletins cover
Service bulletins
DIAGNOSIS OF CRACKED OR BROKEN TRANSMISSION CASE. *TT 2006 AND PRIOR CARS AND LIGHT DUTY TRUCKS.
DIAGNOSTIC INFORMATION FOR INTERMITTENT TRANSMISSION DOWNSHIFT, SLIP, BUSY/CYCLING TCC OR NOISY COOLING FAN.
COLD ENGINE KNOCK.
NEW CAST IRON EXHAUST MANIFOLD AND STAINLESS STEEL GASKET TO CORRECT ENGINE NOISE CONDITION.
Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.