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What is the solution for unstable idle speed in older Ford Focus models?

1 Answers

CarsonMarie

07/30/25 10:28am

Older Ford Focus models experiencing unstable idle speed can be addressed by adjusting the idle speed. If the issue persists after adjustment, it is necessary to check whether the idle jet and idle air jet are clogged. If the jets are clogged, they can be cleaned with gasoline or acetone and blown through with compressed air. If the jets are not clogged, stabilize the engine at a certain speed and listen for air leaks at the intake manifold or the lower gasket area of the carburetor. Below is an introduction to car maintenance: 1. Introduction to car maintenance: Car maintenance refers to the preventive work of regularly inspecting, cleaning, replenishing, lubricating, adjusting, or replacing certain parts of the car, also known as car servicing. 2. Scope of car maintenance: Modern car maintenance mainly includes the engine system, transmission system, air conditioning system, cooling system, fuel system, power steering system, etc. 3. Purpose of car maintenance: The purpose of car maintenance is to keep the vehicle clean, maintain normal technical conditions, eliminate potential hazards, prevent faults, slow down the deterioration process, and extend the service life.

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