Do you have trouble with Chevy 4.3 engine? If yes, I know what problem you must be facing. Chevy 4.3 does not idle well. It is possible to fix the problem.
If your engine is giving bad acceleration, this will eventually damage the Idle Air Control valves (IAC) and Throttle Control Switches (TCS). Take a close look at the engine of your vehicle and check wires, vacuum line, valves, spark plugs and tubes. Also check for any exposed and broken wires, corrosion, loose connections and breaks. The broken valves and wires could be linked with TCS and the IAC. You can always refer to the manual guide in order to get clear idea.
Also check the oil. Remember to replace the at least twice a year.
Check the transmission fluids. Bad radiator system, unchecked transmission fluids, poor cooling system are the major causes of poor condition throttle switches.
Do these checks regularly and you will get smooth running Chevy 4.3 engine