ClothSeats

This recent video from C&S Corvettes claims that the positioning of the fuel pumps on 2006 and most 2007 Corvettes is different from 2008 and newer. Specifically, Lyle states that the early pumps mount at the bottom of the tank, while the newer pumps mount at the top of the tanks. Furthermore, he states that the early pumps have a metal top plate, while the newer pumps have a plastic top plate. Is it true that the mounting positions and top plate material is different between early and late? And if that is true, does that mean 2006 and most 2007 don't commonly have the fuel smell problem? Note: Although 2005 isn't mentioned in the video, I would assume it is included with 2006 and 2007.

torquetube

The chronology presented in the video is completely screwed up.

All C6s have plastic top-mount pumps. The fuel system design switched from bottom-mount pumps to top-mount pumps late in the C5 run.

He must be confusing the pump position change and the level sender resistance change. The level sender resistance range was changed in 2007.

ClothSeats

Thanks for clearing this up. I hate it when Lyle puts out misleading information like this.

double06

In 2007 or so the fuel level sensor resistance did a reversal. The old way was 0 empty 240 ohms full in 2007 it went to 240 empty to zero ohms full. The logic there was as the pump aged the ohms resistance got worse. So a zero normally might be say a 30 ohm after 100K miles so you thought you had gas in the tank and you did not. When ordering a new pump for the older car you need to be aware of what gauge you have or swap you level gauge in tank out to new pump.

Lights ZR1

I expect nothing less ever since he allowed GM “engineers” on his channel to spew damage control BS about the LS7.

torquetube

Minimum resistance is 40Ω, not 0Ω, which allows the ECU to detect shorts to ground. (Maximum is more like 250Ω, but that's neither here nor there.)

ClothSeats

Yeah, that LS7 BS he put out really turned me off. Sometimes he should just keep his mouth shut.