Dezzy Global Auto Cooling Venture

08/11/2025

Hybrid AC

28/09/2025

🚗🔧 Where Are the Most Important Engine Sensors Located? 🤔
Understanding where your car’s main sensors are can help you catch problems early and better communicate with your mechanic! 🛠️ Let’s check them out one by one 👇

🌬️ MAF Sensor (Mass Air Flow)
📍 Location: Right after the air filter, in the intake duct.
🔧 Job: Measures how much air is going into the engine to adjust fuel delivery.

🧪 MAP Sensor (Manifold Absolute Pressure)
📍 Location: On the intake manifold, connected by bolts or a vacuum hose.
🔧 Job: Reads manifold pressure to calculate engine load.

⚙️ TPS Sensor (Throttle Position Sensor)
📍 Location: On the throttle body, connected to the throttle shaft.
🔧 Job: Detects how much the throttle is opened to control fuel injection.

🛢️ O2 Sensor (Oxygen Sensor)
📍 Location: In the exhaust system — before & after the catalytic converter.
🔧 Job: Measures oxygen in exhaust gases to fine-tune the fuel-air mix & reduce emissions.

🌡️ ECT Sensor (Engine Coolant Temp)
📍 Location: On the cylinder head or near the thermostat.
🔧 Job: Monitors engine temperature to manage fan speed, injection, and ignition timing.

💥 Knock Sensor
📍 Location: On the engine block, close to the cylinders.
🔧 Job: Detects engine knocking so the ECU can adjust ignition timing.

⚙️ Crankshaft Position Sensor (CKP)
📍 Location: Near the flywheel or bottom of the engine, facing the crankshaft.
🔧 Job: Tracks crankshaft speed & position to control fuel and spark timing.

⛓️ Camshaft Position Sensor (CMP)
📍 Location: On top of the engine, near the camshaft or valve cover.
🔧 Job: Helps the ECU sync ignition and fuel injection with camshaft rotation.

✅ Why Does This Matter?
Many engine problems are caused by bad sensors.

27/09/2025

Good morning everyone

27/09/2025

Air condition system 🚘👨‍🔧

23/08/2025

RADIATOR CAP:

FREQUENTLY ASKED QUESTIONS

1. What is a radiator cap?
- A radiator cap is a small but important component of a car's cooling system.
- It is typically found on the top of the radiator and serves as a seal to maintain the pressure and coolant level in the radiator.

2. How does it function?
-*The radiator cap has a spring-loaded valve that regulates the pressure inside the cooling system.
- *When the engine heats up and the coolant expands, excess pressure is released through the radiator cap's valve into the overflow reservoir.
- *As the engine cools down, the vacuum created in the cooling system draws coolant back from the overflow reservoir through the radiator cap.

3. Its importance
- *The radiator cap plays a crucial role in maintaining the proper pressure and coolant level in the cooling system.
- Without a functioning radiator cap, the engine can overheat or the cooling system can develop leaks.

4. Signs of a Faulty radiator cap
- *Visible signs of wear or damage on the radiator cap itself
-* Coolant leaks around the radiator cap
- *Engine overheating or fluctuating temperature gauge readings
- *Low coolant levels despite regular refilling
- *Hissing sound coming from the radiator cap
- Steam or smoke coming from under the hood

23/08/2025

23/08/2025

🚗⚡️ What is an ECM and How Does It Work with Sensors?

Your car’s Engine Control Module (ECM) is like its brain—constantly communicating with sensors to keep everything running smoothly. Here’s how it works:

🔹 ECM (Engine Control Module) – The main computer that manages engine performance, fuel efficiency, and emissions.

🔹 Connected Sensors – Monitor critical systems like:

✔️ Oxygen (O2) Sensor – Measures exhaust gases for optimal fuel mix
✔️ Mass Airflow (MAF) Sensor – Tracks air intake for combustion
✔️ Throttle Position Sensor (TPS) – Adjusts throttle response
✔️ Coolant Temp Sensor – Prevents overheating
✔️ Crankshaft/Camshaft Sensors – Ensure precise ignition timing

When a sensor fails, your ECM may trigger the Check Engine Light ⚠️—so don’t ignore it!

💡 Did you know? A faulty sensor can reduce performance, fuel economy, or even cause engine damage.

Regular diagnostics keep your ECM happy!

22/08/2025

‼️CAR AIR CONDITION SYSTEM ‼️

▶️ CAR AIR-CONDITIONING (AC) SYSTEM ensures a comfortable cabin by cooling and eliminating air moisture.
➡️ Using a closed loop cooling process to remove the heat from the cabin and release it outside.

‼️KEY COMPONENT‼️

1. ▶️ COMPRESSOR.
Refrigerant gas compression and circulating through the system.

2. ▶️ CONDENSER.
Cooling refrigerant gas, turning it into a high-pressure liquid by releasing heat.

3. ▶️ RECEIVER DRIER / ACCUMULATOR
Removes moisture and filters dirt from the refrigerator.

4. ▶️ EXTENSION VALVE / OR***CE TUBE
Lowering refrigerant pressure before entering the evaporator.

5. ▶️ EVAPORATOR
Soaking up the heat from the cabin air, cooling it down before departing back.

6. ▶️ BLOWER FANS
Distributing the cool air in the cabin.

7. ▶️ COOLING OFF
The fluid responsible for bringing heat to the whole system.

‼️HOW IT WORKS‼️
Low pressure refrigerant compressor becomes high pressure gas.
Cooling flows to the condenser, where it releases heat and boils into liquid.
Liquid coolant travels through the extension valve, lowers the pressure and temperature.
In an evaporator, a refrigerant absorbs the heat from the cabin air and turns it into gas. The blower fan spreads cool air.
Refrain back to compressor to repeat cycle.

‼️ ADVANTAGES‼️
Keeping the cabin cool and comfortable in the hot weather.
Reduce humidity, prevent window fogging.
Improve driver's focus and reduce fatigue during long journeys.

‼️COMMON PROBLEM‼️
Weak or warm air flow.
The awesome sounds of an air conditioning system.

‼️ THE STINK‼️
Refrigerator leak or visible component damage.

05/08/2025

🚗💨 How to Spot & Fix a Faulty MAF Sensor Like a Pro! 🔧🧠
Is your car acting weird lately? 🤔 A bad Mass Air Flow (MAF) sensor might be to blame!
Here’s how to detect it and what to do next! 👇👇
⚠️ Common Signs of a Faulty MAF Sensor:
🔹 Rough idling
🔹 Power loss
🔹 Poor fuel economy
🔹 That annoying Check Engine Light 🔥
🔍 How to Test a MAF Sensor:
👀 1. Visual Check: Look for dirt, oil, or visible damage.
🔌 2. Unplug Test: Disconnect the MAF — if engine performance changes, that’s a clue!
📟 3. Scan for Codes: Use an OBD2 scanner to check for related error codes.
🔋 4. Multimeter Test: Measure voltage or signal output (check your service manual for specs).
🛠️ How to Fix a Bad MAF Sensor:
🧴 Clean it: Use MAF-specific cleaner spray — never touch the wire!
🔌 Inspect Wiring: Look for damaged wires or loose connectors.
💨 Check for Air Leaks: Inspect the intake system for cracks or loose clamps.
🔁 Replace if Needed: If it’s too far gone, swap it for a new one.
💡 Pro Tip:
Keep your air filter clean and check the MAF regularly to avoid future engine headaches! 🧰💪
Stay ahead of the game — smooth ride, happy engine!