my 2004 Buick Rainier reads coolant hot, but its not over heating my guages don't read overheating and my check engine light is not on what else could it be
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2004 Buick Rainier
Question: Buick Rainier
Answer #1DaveJHM June 15, 2011, 22:45Master
The temperature gauge may not be "exact'; I would recommend having the gauge checked with a diagnostic tool to see if it responds to commands properly.
I would also verify the temperature sending unit was reading properly at the engine.
Replydale45, June 16, 2011, 07:37Journeyman
Are you sure the overheat light is not a low coolant light? It is not unusual for the low coolant light to be on and the coolant is full. it does indicate a problem, though
ReplyDaveJHM, June 16, 2011, 21:46Master
Good point, Dale, when I read the question again, you might have hit the nail on the head.