Many GWM Cannon owners report a frustrating lack of power and suspension issues that undermine their ute’s advertised capabilities. This article reveals the primary complaint about the GWM Cannon—its underpowered engine and soft, sag-prone suspension—while offering five practical solutions to fix these issues effectively.

The GWM Cannon’s 2.4-litre turbo-diesel engine produces 135kW and 480Nm, which is 22% less powerful than its Mitsubishi Triton rival. The Cannon’s rear suspension is also criticized for being soft and sagging under load, contributing to a disconnected driving experience. Furthermore, DPF (Diesel Particulate Filter) problems are common in Cannon diesel models, often caused by urban driving patterns preventing proper regeneration.

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Understanding the Primary Issues in the GWM Cannon

Exploring the root causes of GWM Cannon‘s power and suspension challenges provides a foundation for the recommended fixes.

GWM Cannon Suspension and Power Problems

The primary issue with the GWM Cannon is a significant lack of engine power that affects its ability to deliver on its advertised payload and towing claims. This creates a major disconnect between the vehicle’s specifications and its real-world performance, frustrating owners who need reliable power.

Its soft and unfinished suspension tuning leads to a sag-prone rear end and a disconnected driving feel. The 2.4-litre single turbo-diesel four-cylinder engine offers 135kW and 480Nm but is consistently outclassed by key competitors.

Owners frequently report issues with the diesel particulate filter (DPF) clogging, which compounds existing engine performance problems. Carbon buildup in the intake manifold and EGR system further reduces engine efficiency over time.

Drivers also experience poor throttle response and delayed transmission shifts, which severely impacts overall drivability. The GWM Cannon also lacks a centre differential, limiting on-road four-wheel drive use in traction-limited conditions like wet roads or gravel.

GWM Cannon Testing in Outdoors

Five Ways to Fix the GWM Cannon’s Most Pressing Issues

From maintenance to driving habits and upgraded components, these five solutions address the GWM Cannon‘s fundamental shortcomings.

1. Address Diesel Particulate Filter (DPF) Problems Proactively

DPF clogging is a key issue due to incomplete regeneration from short urban trips. Regular forced regeneration using diagnostic tools is essential to clean the DPF and restore engine power.

Owners should drive the vehicle at sustained highway speeds to trigger natural regeneration cycles. Using high-quality diesel fuel and adding DPF remedy additives can also significantly reduce soot production. Professional DPF cleaning or manual regeneration may be needed if blockages persist, as detailed in this DPF problems guide.

2. Perform Regular Carbon Cleaning of Intake Manifold and EGR System

Carbon deposits from oil vapours build up due to direct injection and frequent short trips, causing power loss. Walnut blasting or hydrogen engine cleaning effectively removes this carbon buildup.

Clean or replace EGR valves periodically to prevent clogging and overheating. Software updates released by GWM in 2024 address some EGR and engine management issues, especially on the Cannon Alpha model.

3. Maintain and Upgrade the Fuel System

Replace fuel filters every 30,000 km to avoid clogs and fuel delivery issues. Regular fuel system inspections help detect leaks or contaminated fuel problems early.

Only use premium diesel to reduce injector corrosion and soot formation. For persistent misfire issues, ultrasonic injector cleaning or replacement may be necessary.

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4. Modify Driving Habits to Enhance Engine Performance

Avoid frequent short urban trips that prevent the engine from reaching its optimal operating temperature. Incorporate longer highway drives to ensure full DPF regeneration and reduce carbon buildup.

Adopt smooth throttle inputs to minimize transmission lag and engine stress. Use the vehicle’s drive modes appropriately to optimize fuel economy and traction depending on road conditions.

5. Consider Aftermarket Suspension Upgrades to Fix Sagging

The soft, sag-prone rear suspension can be improved with heavy-duty leaf springs or load assist kits. Upgrading shock absorbers to higher quality units significantly improves ride comfort and handling.

A GVM (Gross Vehicle Mass) upgrade may be necessary for owners regularly carrying heavy payloads. Always consult local specialists to avoid voiding your warranty and to select the best fit for your GWM Cannon dual-cab ute.

Frequently Asked Questions (FAQ)

Why does my GWM Cannon lose power and feel underwhelming?

Your GWM Cannon likely loses power due to DPF clogging, carbon buildup in the intake and EGR system, or outdated engine management software. These issues restrict airflow and fuel delivery, resulting in a significant performance drop.

How can I prevent Diesel Particulate Filter (DPF) problems in my GWM Cannon?

Prevent DPF problems by using high-quality fuel, performing regular maintenance, and including consistent highway driving. This allows for forced DPF regeneration cycles that clean the filter and prevent clogging.

What are the best suspension upgrades to fix GWM Cannon sagging rear suspension?

The best upgrades include installing heavy-duty leaf springs, load assist kits, and upgraded shock absorbers. These components are specifically suited for heavy payloads and will eliminate the sagging issue.

How often should I replace the fuel filter and service the fuel system in the GWM Cannon?

You should replace the fuel filter every 30,000 km along with regular fuel system inspections. This maintenance schedule is critical for maintaining optimal engine performance and preventing fuel delivery issues.

Is the GWM Cannon suitable for heavy towing and off-road driving as advertised?

The GWM Cannon has a respectable 3500kg towing capacity but suffers from power limitations for heavy loads. Its lack of a centre differential also limits on-road 4H use in slippery conditions, making it less capable than some rivals.

Some GWM Cannon owners report power loss and stuttering issues, which can be linked to unresolved DPF and engine management problems, causing frustration around servicing and repairs.

GWM Cannon also faces electronic quirks such as clock reset and infotainment system issues that sometimes affect user experience. These faults stem from firmware and hardware inconsistencies, highlighting the need for software updates and quality checks.

Additionally, users should be vigilant about tyre pressure monitoring system (TPMS) failures reported among some owners, which, if ignored, can compromise vehicle safety and performance.