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...
Forum Discussion
It only takes a few minutes to change the CO sensor, and probably they did not have yours in stock in a small town like Moab.
Have you been filling up with 'regular' gas? IT can be 85 octane in Moab area, and anyplace that is over 5,000' elevation. Try filling with (gulp) 91 octane or higher and see what that does for you. It might be that the knock sensor was hearing something and went to the low power mode because of the low octane gas.
Higher octane fuel will provide much better MPG. 85 octane might be fine in Denver, but as you leave the higher elevations, and as you try to climb a steep mountain, you really do need 87 octane or higher fuel.
It only took me a few minutes to change my O2 sensor in my Dodge van. the one on my motorhome was really easy, and all I needed was a 7/8" wrench. The Dodge required a special tool, Napa has a couple of designs that cost only $6.95. Ask at the counter.
Good luck!
Fred.
Have you been filling up with 'regular' gas? IT can be 85 octane in Moab area, and anyplace that is over 5,000' elevation. Try filling with (gulp) 91 octane or higher and see what that does for you. It might be that the knock sensor was hearing something and went to the low power mode because of the low octane gas.
Higher octane fuel will provide much better MPG. 85 octane might be fine in Denver, but as you leave the higher elevations, and as you try to climb a steep mountain, you really do need 87 octane or higher fuel.
It only took me a few minutes to change my O2 sensor in my Dodge van. the one on my motorhome was really easy, and all I needed was a 7/8" wrench. The Dodge required a special tool, Napa has a couple of designs that cost only $6.95. Ask at the counter.
Good luck!
Fred.
