2005 Silverado-V8 Flex Fuel 4X4 20,000 miles No PowerI
I've asked this question before, still have the same problem.
A while ago my check engine light came on, I had it checked at Autozone. Code said
MAS was bad or another sensor could be the problem. I waited a few months to
change the MAS because the light went off, but eventually came back on, and truck
was losing power under load. I changed the sensor at this time.
The truck still has no power trying to pass, driving uphill, and driving at elevation.
I took the truck to my local chevy dealer, no codes showed up and they said nothing
was wrong. They must not have gone for a test drive. It's obvious something is wrong.
The dealer did say the truck is running a little lean, but they don't know why.(?)
My question is, could it be the converters plugging up? Since I did drive the truck a
few months before changing the MAS, and the engine is running lean, could this plug
the converters. I just can't just start changing sensors.
The transmission seems to be shifting correctly and only has 20,000 miles, I don't
think it could be the trans.
I've only used gasoline and not flex fuel. This year truck has the in-tank, 100,000
mile(?) fuel filter.
Any ideas out there?