Why does the truck not accelerate when the throttle is pressed?
1 Answers
Truck not accelerating when the throttle is pressed may be due to a fault in the power system. Here are the specific reasons for insufficient power in vehicles: 1. Fuel supply system issues: Blockage in the fuel tank vent hole, fuel tank switch, fuel filter, or the fuel line between the tank and the carburetor can restrict fuel supply, leading to a lean air-fuel mixture and weak engine performance. 2. Ignition system issues: Incorrect ignition timing or premature ignition can cause early combustion and knocking of the air-fuel mixture. Faults in the ignition system may result in spark plug misfires or weak sparks. 3. Cylinder compression pressure: Severe wear of pistons, piston rings, or cylinders increases the clearance between them, reducing sealing efficiency. This leads to cylinder head leakage and decreased cylinder compression pressure.