False knock on 2002 S10 0411
I'm copying this from another forum in order of my posting.
262ci Forum (4.3)
Something feels like it is holding my truck back.
Jump to Latest
Follow
1 - 8 of 8 Posts
Skylark
Skylark · Registered
Joined May 30, 2018 · 95 Posts
Discussion Starter • #1 • 6 days ago
Here is the truck, 2002 Xtreme 4.3, 5 speed, 3.42 gears, 8.5 with the G80. It currently has 130k, I've had it since 109k. Full synthetic fluids, all filters changed, NGK and AC plugs tried, I went back to the NGK because I prefer them. AC cap, rotor, wires, spider , O2 sensors and coil. The coil was because of a P0300 and I noticed that the coil was aftermarket and crusty. Everything else was replaced just due to my version of basic maintenance on a new to me vehicle. The fuel pressure is perfect all of the way through the top of 3rd gear. I finally got a little rattle in the front cat so I replaced both cats and the muffler. The distributor is at +1 over 1000 rpm. I've cleaned the mass air flow sensor with no changes. I've had 3 sets of tires on this truck, the stock 235/55/16, a set of 245/45/17 and now 275/40/17. It just hasn't ever felt "peppy". It refuses to break the tires loose unless if I dump the clutch over 2000 rpm. On the 245s I was routinely hitting 25 mpg on the flats at 70 mph and 18+ in town. The brakes aren't dragging and I don't drive like a teenager as evident by my mpg. I'm tempted to do a compression check just to see where it is at but with 130k it shouldn't be an issue. I haven't been shotgunning parts at it to fix anything but I'm quite surprised that it hasn't picked up anything.
Any suggestions as to what I could be looking for? No misfire on the scanner. It runs smoothly. It just feels like something is holding it back.