Whether you're on the work site or pulling into your neighborhood, your C1500 does its job dutifully. However, now that the throttle body is sitting on my bench, I've noticed some heavy deposits on the back regulator side that may indicate a leak??? To fix this hesitation problem with it on my Chevrolet truck, we replaced the fuel pump, the catalytic converter, and the distributor. Both the standard and extended cabs have either rear two-wheel drive or four-wheel drive. When I was road checking before tearing it down, the throttle response seemed much better, but I could feel a bit of pulsation when the engine was under load? Might want to take it in and get some diagnostics on it. Didn't have to drop the tank. Since the 1991 Chevrolet K1500 comes with three varying engines, fuel mileage differs for each. Made it way easier because I couldn't even get a wrench up in there to loosen the lines.
It doesn't feel like and ignition problem since the truck never misses. The vacuum seemed pretty steady around 17. Sounds like you've already replaced the usual culprits. They make a special Mass Air Flow cleaner that works good on it or you can just use Carb cleaner. I will have to catch a warmer day since we are about to undergo a big weather change. I need to check the fuel pressure.
My Chevrolet Silverado has a 5. Speak with the trustworthy staff at your nearby AutoZone to learn more about your engine's computer. City driving has a fuel mileage of up to nine miles per gallon and only 12 miles per gallon on highways. I have one on the way! Could be a fuel pump but not necessarily. The standard length of the 1991 Chevrolet K1500 is 194 inches; however, the extended cab model has a length of 213. I really don't want to replace the fuel pump if it isn't necessary. Even with this, once you get to highway speed, the truck ran but felt like it was starved for fuel.
I replaced it and the problem got slightly better. Had it done in an hour. It's all a computer system and it all works together so it can be very difficult to diagnose without a Tech 2 or something to see whats going on. Both a standard cab and an extended cab are available on the 1991 Chevrolet K1500. If I remember right it's on the passenger side of your throttle body and is threaded in. Actually, even with the camper top, sliding the bed 2 ft wouldn't be that had. I just unbolted the bed and slid it back enough to get at the pump.
It was usually connectors, wires etc. So, could a bad 02 sensor be causing this much grief. This important part also resolves problems with a persistent check engine light. You just take off your fuel filter and replace it with the adapter and hook up your pressure gauge to it. However, if you notice that it has problems shifting and you have an automatic transmission, it's quite possibly time for a new C1500 engine control computer.
I tightened the intake bolts and the problem again seemed to improve, but still not close enough. My Haynes manual doesn't show them. I am thinking either a weak fuel pump or bad injectors. I have inspected the fuel lines and they seem solid. Not a lot of fun. A friend of mine that owns a shop gave me that trick. A plugged Catalytic converter can also cause poor acceleration.
My truck is a long bed with a camper top so it wouldn't be quite as easy for me. I have the gauge, but according to my Haynes manual I will have to rig some type of tee into the supply line as well as a stop valve in the return. The 1991 Chevrolet K1500 has several models of engines available, depending on the needs of the driver. I placed an adapter in the fuel line. It isn't missing, rather it has very little power. I may give it a try if the pump is bad.
Most auto parts stores can order it for you or you can get it online. If you're Chevrolet truck has the same problem, and it doesn't accelerate like you think it should, look at the things I point out in this video, and replacing one of them will fix the problem. We only had to move it back 2 feet. The standard cab seats three people, while the extended cab can seat up to six. The K1500 is Chevrolet's half-ton series which are available in both a short bed and a long bed. Payload capacity ranges from 1,335 lbs.