Diesel vehicle diagnosis
Engine fault finding and electronic system testing in our Auckland workshop, for diesel vehicles, light commercials, trucks, machinery and equipment.
Why Simms for vehicle diagnosis
- 01Experienced technicians
Engine faults, warning lights and performance issues across diesel vehicles and machinery.
- 02Diagnostic equipment
Fault codes, sensors and fuel systems checked quickly and accurately.
- 03Built around downtime
Faults found fast so repairs are done sooner.
- 04Right fix first time
The real problem is found before any parts are replaced.
Warning light on, losing power or running rough?
Faults can show up as warning lights, power loss, starting problems or poor running. We find engine, fuel system and electronic faults so the right repair is done, without unnecessary parts.
Common signs you need a diagnosis
- Engine warning light on
- Loss of power or poor performance
- Hard starting or no start
- Smoke or higher fuel use
- Rough idle or misfire
Book a vehicle diagnosis
Tell us the vehicle, engine and symptoms. We'll find the fault and recommend the most cost-effective repair, and usually reply within one working day.
Diesel vehicle diagnosis questions
Another question? Call +64 9 579 1159.
How long does a diagnosis take?
Usually 1–2 hours, depending on the fault and vehicle. If more testing is needed we'll talk to you first.
What's included?
Scanning for fault codes, checking sensors and electronics, testing fuel and engine systems, and finding the cause of warning lights or performance issues.
Will it find the exact fault?
In most cases it identifies the faulty system or part. Sometimes more testing is needed to confirm before repair.
Can you repair it after?
Yes. Once the fault is found we'll quote and can carry out the repair.
Where is the workshop?
77 Leonard Road, Mount Wellington, Auckland 1060. Monday to Friday, 8am to 5:30pm.
Other workshop services
Need a part as well?
We hold far more diesel parts than we list online. If we don't have it, we can usually source it.