Injector testing and repair
Diesel injector testing, servicing and repair in our Auckland workshop, for commercial, agricultural, transport, marine and passenger engines. Courier-in repairs from anywhere in New Zealand.
Why Simms for injector testing and repair
- 01Diesel injection specialists
In business since 1927.
- 02Tested and calibrated
Our technicians calibrate every reconditioned injector to manufacturer specification on the test bench.
- 03Built around downtime
A structured repair process to keep vehicles, trucks and machinery running.
- 04Verified before it leaves
Every injector is tested before it goes back to you.
Hard starting, smoke or running rough?
Injector faults can cause hard starting, power loss, smoke and uneven running. A bench test finds the cause before parts are replaced.
Common signs your injectors need testing
- Hard start or no start, even with good fuel supply
- Loss of power or poor throttle response
- Black or white smoke under load
- Rough idle, misfiring or surging
- Higher fuel use
- Injector-related fault codes
Request an injector test or repair
Tell us the engine, injector type and symptoms. We'll recommend the most cost-effective option, and usually reply within one working day.
Injector testing and repair questions
Another question? Call +64 9 579 1159.
Can I courier my injectors in?
Yes. Pack them securely and include your contact details and a note on the symptoms.
Do you supply exchange or new injectors?
Yes, where available. We'll recommend repair, exchange or new after testing.
What warranty applies?
See our warranty page, or ask us about your part.
Where is the workshop?
77 Leonard Road, Mount Wellington, Auckland 1060. Monday to Friday, 8am to 5:30pm.
Related
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.