We received this Nissan Clipper van with the complaint that the air conditioning doesn't work at all, and when the A/C switch was turned on, it only … Read More about Air Conditioning Malfunction Caused by High Refrigerant Pressure Exceeding Pressure Switch Limit (GBD-U71V Nissan Clipper)
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Engine Warning Light On with No Noticeable Performance Issues (DBA-L175S Daihatsu Move P0325)
We received this Daihatsu Move with the complaint that the engine warning light comes on occasionally, but there are no noticeable performance … Read More about Engine Warning Light On with No Noticeable Performance Issues (DBA-L175S Daihatsu Move P0325)

Recognizing the Importance of Suspension Components at 370,000 km: Replacing Arm Bushings (UA-SCP10 Toyota Vitz)
Suspension arm bushings, which have a structure similar to the engine mount insulators I replaced the other day. Suspension arms are typically … Read More about Recognizing the Importance of Suspension Components at 370,000 km: Replacing Arm Bushings (UA-SCP10 Toyota Vitz)

Can You Replace Suzuki Hybrid ISG Belt Without Special Tools? (Spacia DAA-MK53S)
Suzuki's mild hybrid system primarily consists of an ISG (Integrated Starter Generator, an alternator with motor function) and a lithium-ion … Read More about Can You Replace Suzuki Hybrid ISG Belt Without Special Tools? (Spacia DAA-MK53S)

When Engine Vibration Becomes Noticeable (Toyota iQ DBA-KGJ10)
When idling at a stop with the transmission in D (Drive) position, the engine vibration transmits throughout the entire vehicle body and is … Read More about When Engine Vibration Becomes Noticeable (Toyota iQ DBA-KGJ10)

Headlight Bulb Replacement for a Kei Car That Requires This Much Disassembly (Daihatsu Copen L880K)
I received a request from another auto shop to replace the high beam bulb for a Daihatsu Copen. When a request comes from another shop, it … Read More about Headlight Bulb Replacement for a Kei Car That Requires This Much Disassembly (Daihatsu Copen L880K)

Tackling Power Sliding Door Repairs (Toyota Sienta CBA-NCP81G)
Although sliding doors for cars didn't originate in Japan, they've become especially popular in Japanese family cars like minivans, developing a … Read More about Tackling Power Sliding Door Repairs (Toyota Sienta CBA-NCP81G)

The Art of Making Do With What’s Available
The other day, I introduced a method of removing rusted nuts that ordinary tools can't handle by heating them with a torch. Did you know that there … Read More about The Art of Making Do With What’s Available

Reflections on Changes with Time and Aging After Major Maintenance of the Jimny Sierra (JB43W Transmission & Clutch Replacement)
A customer who owns a Jimny Sierra reported noise coming from a specific gear (especially 4th gear), so I first drained the oil to assess the internal … Read More about Reflections on Changes with Time and Aging After Major Maintenance of the Jimny Sierra (JB43W Transmission & Clutch Replacement)

Methods for removing excessively rusted corroded nuts, and the wonders of the brain accidentally noticed due to visual abnormalities
Removing a nut that has corroded to the point where its corners are gone cannot be tackled using ordinary hand tools, literally. Normally, we … Read More about Methods for removing excessively rusted corroded nuts, and the wonders of the brain accidentally noticed due to visual abnormalities

Unexpected Injector Failure in Toyota Vehicles!? Mysterious Engine Malfunction and Correct Diagnostic Procedures – [Case Study Explanation] 1NZ-FE Engine P0304 Error Code – Investigating the True Cause of No.4 Cylinder Misfire
At the beginning of 2025, I received a call (consultation) from a fellow professional. They had sold a 10-year-old vehicle with less than 70,000 … Read More about Unexpected Injector Failure in Toyota Vehicles!? Mysterious Engine Malfunction and Correct Diagnostic Procedures – [Case Study Explanation] 1NZ-FE Engine P0304 Error Code – Investigating the True Cause of No.4 Cylinder Misfire

250,000 km High-Mileage Light Truck Refrigerated Vehicle DA16T: Coolant Leak Reveals Critical Points to Watch — Practical Explanation of the Importance of Pre-operation Inspections and Good Maintainability
The refrigerated light truck now in its 8th year is about to reach 250,000 kilometers in mileage. It drives approximately 30,000 kilometers … Read More about 250,000 km High-Mileage Light Truck Refrigerated Vehicle DA16T: Coolant Leak Reveals Critical Points to Watch — Practical Explanation of the Importance of Pre-operation Inspections and Good Maintainability
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