Need advice on Chevy 8.1 Vortec engine (2003)
We have experienced loss of power going up long steep grades. and the engine light on. 3 times. After the second time , a truck service repair said the 02 sensor (bank 1 & 2) probably came on due to...
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The 02 sensor will get slow and kill performance. By the time it finally throws a code it has been bad for some time. He should have replaced it.
