What is the reason why the Wuling Hongguang cannot accelerate when stepping on the gas?

[JayceFitz]

The reason why the Wuling Hongguang cannot accelerate when stepping on the gas is due to carbon deposits in the engine, or the throttle or fuel injector not being cleaned for a long time, or the oil filter, air filter, and air conditioning filter not being replaced for an extended period. Below is some relevant information about the Wuling Hongguang: 1. Exterior: The striking eagle-eye crystal headlights and feather-shaped crystal front fog lights further enhance the vehicle's premium feel. The two powerful lines on the engine hood create a strong visual sense of power. 2. Powertrain: The Wuling Hongguang is equipped with two engines, the P-TEC 1.2L and the 1.5L-DVVT, both designed and manufactured according to General Motors' global powertrain standards. These engines feature a double overhead camshaft design, which is relatively rare in small-displacement engines. While ensuring ample power, they also demonstrate excellent fuel economy, significantly reducing vehicle operating costs.

[LauraMarie]

I've also encountered the issue of no acceleration when pressing the throttle while driving a Wuling Hongguang. There are usually several possible causes. Excessive carbon buildup in the throttle body can block the air intake, resulting in insufficient air intake by the engine and weakened power output. Not replacing the air filter in time also affects airflow, making acceleration sluggish. Clutch wear is common in manual transmission models, where the vehicle speed doesn't pick up even after the pedal rebounds. Aging fuel pumps can lead to insufficient fuel pressure, or clogged fuel injectors can reduce fuel supply. Low tire pressure increases rolling resistance, making acceleration feel difficult. It's recommended to first visit a repair shop to check the throttle body and clutch, clean carbon deposits, and regular maintenance can prevent these issues. If this happens on the highway, pull over to check the safety valve.

[DiHarley]

As an enthusiast who frequently deals with this type of vehicle, I believe the acceleration issue with the Wuling Hongguang should consider sensors. When the throttle pedal position sensor fails, the signal doesn't reach the ECU, leaving the engine unaware of fuel injection. A dirty air flow meter can cause inaccurate readings, leading to improper fuel-air mixture. Additionally, aging ignition system components like spark plugs or high-voltage wires reduce combustion efficiency. A clogged catalytic converter in the exhaust pipe increases backpressure, hindering exhaust flow and consequently affecting power output. It's advisable to use a diagnostic tool to read fault codes for accurate problem identification rather than blindly replacing parts to save money. Regular driving should avoid frequent short-distance start-stops to minimize carbon buildup.

[McWilliam]

Many manual transmission Wuling Hongguang owners have encountered this issue, primarily due to clutch problems. Worn or slipping clutch discs prevent power from reaching the wheels when accelerating. Faulty release bearings or pressure plates also cause difficult gear shifting and weak acceleration. Additionally, old transmission fluid with insufficient lubrication increases internal resistance. A stuck throttle cable or loose linkage affects pedal response. It's recommended to check if the clutch travel is normal and adjust or replace components if necessary. Early repairs can prevent roadside breakdowns.