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MPCJR Auto supply, Butuan City (2025)

14/08/2025

The main components and their connections in the engine control system, especially those related to the gas pedal, engine control unit (ECU), and injection/throttle system.

07/08/2025

Common Mistakes When Changing Oil

🔴 Mistake 1: Not removing the O-ring from the old filter.
When the old filter ring sticks to the engine and you place the new one on top, a double seal is created, causing oil leaks when you start the engine.

🔴 Mistake 2: Not removing the oil cap before draining
Leaving the cap in place creates a vacuum in the system, making draining difficult and leaving dirty oil in the crankcase. Solution: Remove the filler cap before beginning the drain.

🔴 Mistake 3: Draining the oil when the engine is cold
Cold oil is thicker and doesn't flow completely, leaving contaminants in the system. Run the engine for a few minutes before changing the oil to facilitate a more complete drain.

🔴 Mistake 4: Overfilling the oil
Excessive oil can cause foaming, increase internal pressure, and risk damage to seals or the catalytic converter.

🔴 Mistake 5: Not checking the level after starting the engine
Once the oil circulates, it can settle and the level may drop. Solution: Check the level again after running the engine for a few minutes and correct it if necessary.

🔴 Mistake 6: Ignoring the change interval
Do not exceed the interval suggested for your engine and the type of oil you use.

🔴 Mistake 7: Not filling the new filter before installing it, although some people say this is not a problem for them.

🔴 Mistake 8: Not lubricating the filter's O-ring
Although this is a practice mostly recommended by technicians.

🔴 Mistake 9: Overtightening the oil pan bolt
Excessive torque can strip the threads or fracture the oil pan.

🔴 Mistake 10: Overtightening the oil filter
This can deform the gasket and make it difficult to remove at the next service.

🔴 Mistake 11: Checking the level on an inclined surface
Measuring on a slope gives an inaccurate reading, which can lead to overfilling or underfilling.

🔴 Mistake 12: Using low-quality or incorrect filters
Generic filters can clog or fail to filter properly.

🔴 Mistake 13: Using the wrong oil
An incorrect viscosity compromises lubrication and increases internal wear.

06/08/2025

🚗 Is your car losing power when you accelerate?
That sluggish response could be your engine trying to tell you something!

Here are 10 common reasons why your engine might be underperforming:

1. Dirty air filter

2. Worn or fouled spark plugs

3. Clogged or dirty fuel injectors

4. Faulty oxygen sensor

5. Malfunctioning MAF or MAP sensor

6. Clogged catalytic converter

7. Incorrect engine timing

8. Blocked exhaust system

9. Low cylinder compression

10. Yes—spark plugs again! (They're that important!)

⚠️ A loss of power can come on gradually or hit suddenly. Checking these areas can help you prevent bigger problems and keep your engine running smoothly!
# MPCJR CARFIX

21/07/2025

🚗🚗Fuel injector parts and their functions:

1. Nozzle nozzle
• Function: Spray fuel into the combustion chamber in fine mist to better mix with air.
2. Injector body
• Job: houses all interior components and connect the injector to the fuel rail and the cylinder head.
3. Spiral coil
• Function: Acts as an electromagnetic switch that controls opening and closing of the needle.
4. Piston or needle valve
• Function: Opens to allow fuel spraying when the spiral is activated; closes to stop fuel flow.
5. Spring
• Function: Keeps the needle valve closed when the spiral is not activated.
6. Fuel entrance
• Function: entry point where compressed fuel enters the injector from the fuel rail.
7. O-Rings/Seals
• Function: Prevent fuel leakage and ensure the correct closure of injector and engine components.
8. Filtered basket
• Job: Trapping dirt and debris from fuel to protect precision parts in the injector.

🚗 The purpose of a fuel injector:

Fuel Injector ensures accurate fuel delivery at the right time, pressure and spray pattern - essential for effective combustion and engine performance.

11/07/2025

🚗 How to Start a Car with a Bad Crankshaft Sensor ⚠️

Is your car refusing to start? It could be a faulty crankshaft position sensor—a small part with a big job! While it's tough to start a car with a bad sensor, here are a few tricks that might get you to the mechanic.
🔧 What is the Crankshaft Sensor?
The crankshaft sensor monitors the rotation and position of your crankshaft, sending real-time updates to your ECU (Engine Control Unit). It’s like the news reporter for your engine!
If it fails, your engine won’t get the data it needs—causing misfires, stalls, or even a complete no-start.
🚨 Symptoms of a Bad Crankshaft Sensor:
✔️ Check Engine Light stays on
✔️ Engine won’t start
✔️ Rough idling, rattling, or stalling while running

⚠️ Starting a Vehicle with a Bad Crankshaft Sensor (Not Recommended, but Possible):
1️⃣ Disconnect the faulty sensor
2️⃣ Spray starter fluid into the throttle body
3️⃣ Try cranking the engine
Note: This may only work temporarily—and could cause further damage. It’s always safer to tow your car to the mechanic.
🛠️ Want to DIY Replace It? Here’s How:

Disconnect the negative battery terminal

Locate the sensor (usually between the engine & transmission)

Unplug the sensor connector

Remove the bolts with a wrench

Pull out the old sensor and clean the area

Slide in the new sensor, tighten bolts, reconnect everything

🧰 Most sensors are small L-shaped parts about 2–3 inches long.
✅ Once replaced, if the check engine light stays on but your car runs fine, use an OBD-2 scanner to clear the codes.
💡 Pro Tip: If you’re not confident with car repairs, it's best to let a professional mechanic handle it.

&REPAIRSHOP

19/05/2025

Electric Power Steering (EPS) System: A Breakdown
What is an EPS system? An electric power steering (EPS) system is a type of steering system that uses an electric motor to assist the driver in turning the steering wheel. It replaces the traditional hydraulic power steering system, which relies on hydraulic fluid and a pump.
Key components and their functions:
Steering wheel: The driver's input device.
Torque sensor: Measures the amount of force applied to the steering wheel.
Assembly: The housing that contains the motor and other components.
Motor: Provides the necessary assistance to turn the steering wheel.
Vehicle speed: Input from the vehicle's speed sensor.
ECU (Electronic Control Unit): Controls the operation of the EPS system based on various inputs, including torque sensor readings and vehicle speed.
Steering gear: Converts the rotational motion of the steering wheel into linear motion to steer the wheels.
How does it work? When the driver turns the steering wheel, the torque sensor measures the amount of force applied. The ECU then calculates the required assistance and sends a signal to the motor. The motor provides the necessary power to assist the driver in turning the steering wheel. The amount of assistance provided varies depending on the vehicle's speed and the driver's input.
Benefits of EPS systems:
Improved fuel efficiency: EPS systems are more energy-efficient than hydraulic systems, leading to better fuel economy.
Enhanced handling: EPS systems can provide more precise steering and better handling characteristics.
Reduced maintenance: EPS systems require less maintenance compared to hydraulic systems, as there is no need to check or replace hydraulic fluid.
Improved safety: EPS systems can help prevent oversteer or understeer, improving vehicle stability.

05/04/2025

Uder chassis repair of 1st generation Vios Robin

05/03/2025

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05/03/2025

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12/02/2025

a brake system, likely for a car. Here's a breakdown of the labeled components:
Main Components:
* Brake Pedal: The driver applies pressure to this pedal to initiate braking.
* Brake Central Pump: This is the heart of the hydraulic braking system. It converts the mechanical pressure from the pedal into hydraulic pressure.
* Brake Pad: These friction pads are mounted on the caliper and press against the brake rotor to slow down the vehicle.
* Brake Rotor: A metal disc that rotates with the wheel. The brake pads clamp onto it to create friction and slow down the wheel.
* Caliper: A housing that holds the brake pads and applies pressure to them against the rotor.
* Piston: Located within the caliper, these push the brake pads against the rotor when hydraulic pressure is applied.
* Piston Seals: These prevent brake fluid from leaking past the piston.
* Piston Boots: These protect the piston seals from dirt and debris.
* Brake Fluid: This incompressible fluid transmits pressure from the master cylinder to the calipers.
* Brake Field: This likely refers to the area where the brake system operates, such as the wheels or the brake lines.
* Mounting Bracket: This attaches the caliper to the vehicle's suspension.
Other Components:
* Brisk Seal: This is likely a type of seal used in the brake system.
* Calidity Calmon: This might refer to a type of brake pad material or a brand.
Overall, the image provides a comprehensive view of the key components involved in a typical hydraulic brake system and how they work together to slow down and stop a vehicle.
# MPCJR AUTO SUPPLY & REPAIR SHOP

24/01/2025

The suspension system plays a vital role in your car's overall comfort, handling, and safety. It acts as a buffer between the wheels and the car's frame, absorbing bumps, potholes, and uneven road surfaces. Here's a breakdown of the key components

🔴Tie rod end is widely used on the rack & pinion steering system
and also on the steering box type.
The outer tie rod end is connected to the steering knuckle,
while the inner tie rod is connected to the steering rack.
The function of the tie rod end is to push and pull the front tires
as the steering wheel turn.

🔴Ball joint connects the car wheels to the suspension system.
Ball joints are made of a bearing stud and a socket. Basically
ball joints allow the force and displacement of the wheel to be
transferred to the suspension link. Control and support joints on
the steering of a double wishbone front suspension system
are provided for rotational freedom while steering is turned.

🔴 Rack end is a component attached to the rack
and pinion or steering rack. The function of the rack end is to absorb road condition in order to maintain vehicle handling.

🔴 Stabilizer link is a component of the suspension system which connects a sway bar to a shock absorber. Stabilizer links transmit the force to the sway bar to keep the vehicle stable.

22/11/2024

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