My Brother is having some problems with his truck and I was hoping that someone on here might have some insight...the following is his description of the problem.... I have an '82 Chevy 1/2ton 4x4 with a 350, 2 barrel. When I first bought it 8 months ago it was running great, but in the last few weeks its been struggling a bit, and then went downhill sharply in last couple of days. At first it started missing/coughing at higher speeds (90kph+), then got to the point where it was sputtering and stalling when I went above 90, 80, 70... Now I can't even get it to take any throttle. I also noticed that it would cough and sputter if I was cruising on very little throttle - ie, I could accelerate with a fair bit of gas, and no problems, but it didn't like me floating on low throttle. For example, I can accelerate alright in 1st, but when I dip the clutch and come off the gas to take second, it coughs and sputters, unless I keep some throttle on while the clutch is disengaged. It idles fine, but misses at higher rpms, even when its not in gear. At first I thought it must be fuel pump, because it also tended to be worse when going uphill. I replaced the fuel pump, and the distributor cap, rotor and wires, and put fresh plugs in. It sounds a lot better, but still I can hardly even get it moving before I have to put the clutch in because its dying on me. I changed the fuel filter when I first bought it, and it still looks pretty clean. Now I'm at a bit of a loss. The plugs were quite fouled when I pulled them, but they don't smell or have odd discolouration, just oil. It has fouled plugs pretty quickly since I bought it. Some of the vacuum hoses are not connected, but I don't think that is the culprit, because they haven't been connected the whole time, and my problems have only been in the last 6-8 weeks. I'm at a loss where to look next, any suggestions? I thought I would check to see if there was a second fuel filter in the lines somewhere, but that was the only thought I had.
Check!!!! check the cat converter. sounds like it is pluged up to me if you have changed evey thing else good luck MikeT
