TSB Document:
  • Sorry, the NHTSA has not posted this TSB document yet.

You can still get the detailed info from GMC for this TSB. Call your local GMC dealer's service department & ask for a copy of TSB# 990602012D.

Affected Component: ENGINE AND ENGINE COOLING

Summary
SUBJECT REGARDING RUST IN COOLING SYSTEM, HEATER INOPERATIVE, BLOWS COLD AIR, ENGINE OVERHEATS (FLUSH COOLING SYSTEM). NLM

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Date Published
APR 01, 2002
NHTSA TSB #
634218
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