5.7 wont idle
I could use a little advice here, I have a 97 2100 SR2 with the 5.7 2brl carb. I wasnt aware of the effects of E10 last year before I winterized. I always use Sta-bil, but it was not the improved ethanol formula. This year, after de-winterization, it ran and fine idled smooth. First time out to the lake it ran great at first, but then wouldnt idle, only stall. I did some fiddling around and discovered I had a bad intake manifold gasket, so I replaced those, thinking that might be why. Well, it still wont idle, just stalls. With the throttle in the first position just past neutral, it will idle but is very rough, it does rev freely, however. At about 1800 rpms, I can feel a cylinder kick in and out, so I am not quite sure If I have a carb problem, a ignition problem or maybe some bad gas. I hope its not the gas, my tank is full and thats a lot of gas to siphon. I plan on a tune up, sure it needs new plugs and wires, but I still dont think that is the problem with the idle. Like I said, it will run at higher rpms and will hit WOT with no problem. Keeping my fingers crossed it is something small and inexpensive. On a side note, I couldn't believe how clean it was under the intake, the block almost looked new. I have plenty of experience tearing down auto engines and they are not usually that clean.