On a 2 hour trip, this can happen 3-4 times. I took it to my mechanic and after checking that the gauge was fine, he replaced the temperature sensor located in the block. This requires the removal of the intake manifold and is quite expensive. Assuming that the problem was fixed, I took it on another 3 hour trip and it was fine.
It's the cabin temp sensor for the "auto" mode. IS 250 2006-2010; IS250C 2010 are with Engine model number 4GR-FSE. First Cylinder is on the passenger side, therefore Bank 1 is on the passenger side...
Jun 17, 2014 · Where is the fuel rail presure sensor located on a 2008 chevy silverado 4wd / 5.3L. It has a code P0191
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