This content was compiled automatically and has not yet been reviewed by a technician. For reference only.

For reference only. Always confirm part numbers and procedures for your specific vehicle.

Fault diagnosis

Haval JOLION: Engine overheating, reduced power or steam

The coolant temperature reaches the red zone, the engine accelerates weakly, or steam comes from the engine compartment.

By Funbyautoparts Editorial2 min read
Difficulty: IntermediateContent type: Diagnostic Guide

Haval JOLION: Engine overheating, reduced power or steam

Symptoms

  • The coolant temperature reaches the red zone, the engine accelerates weakly, or steam comes from the engine compartment. [1]

Possible causes

  • The manual requires checking the cooling fan and coolant, and checking for pipework leaks, according to the relevant diagnostic branches; this does not mean water pump damage has been confirmed. [1]

Checks

  • Stop safely and switch off the air conditioning; do not open the engine compartment until the steam has stopped. After cooling, have a qualified technician check the fan and leaks according to the original diagnostic branches. [1]

What to do

  • Refer leaks, abnormal fan operation or persistent high temperature to a service centre; do not open the cap under pressure or continue driving under load. [1]

Applicability and limits

  • Only applies to the corresponding JOLION configuration in the official Russian-language manual for Russia; the official website catalogue explicitly associates this manual with 2021–2024. No actual vehicle model has been linked. Do not extend to models with the same name, other powertrains or other markets. Scope: unknown [1]
  • Only applies to the specific configuration in the cited manual; do not assume applicability to all vehicles with the same model name

Related part categories

  • Cooling system / Cooling fan / Cooling system [1]
  • Cooling system / Coolant pipework / Cooling system [1]
  • Fluids / Coolant / Cooling system [1]

Sources

[Source 1] HAVAL JOLION (2021–2024) Official Russian Owner's Manual — PDF pp.187 / printed pp.186, Перегрев двигателя; PDF pp.202 / printed pp.201, Охлаждающая жидкость (accessed 2026-11-01)
https://cdn.perxis.ru/originals/d0s1reobeucc73eqo940/original

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