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Fixing fuel gauge after deleting 2nd fuel tank?
My '99 3500 HD (7.4L/4L80E) was originally equipped with dual tanks. I'm unclear if one of the previous owners deleted the rear tank or or whatever company put the dump bed on did it (though I suspect it wasn't them). The problem is the fuel gauge is always indicating empty and it's throwing a...- jcwren
- Thread
- Replies: 10
- Forum: Audio + Electronics
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'99 7.4L, what is this sensor?
I'm 99.44% sure this is an oil pressure sensor, but I'm not sure why it's here. This is right at front of the block on the left side, just behind the power steering pump. The FSM doesn't make any reference to it, and in the parts diagram this location is listed as "oil galley plug". The oil...- jcwren
- Thread
- Replies: 31
- Forum: Engine Performance + Maintenance
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4L80E w/ Transmission Drum E-brake Leaking
I recently acquired a '99 C3500 HD, and it's got the 4L80E with the drum brake. It's leaking a fair amount of ATF from what appears to be the extension housing tail shaft, into the drum brake housing. It's hard to tell for sure since there's so much fluid all over the bottom of the truck. The...- jcwren
- Thread
- Replies: 25
- Forum: Transmissions
