Kestrel AutoworksEngine Diagnostics and Fault Isolation
Aimed at vehicles with illuminated management lights, limp mode conditions, or intermittent running issues. We read stored fault codes, analyse live ECU sensor parameters, and conduct pin-point wiring or smoke tests to isolate the failed part. You get a concrete explanation of the fault and an exact repair estimate before any component is changed.
What is included
- ✓Full system scan across engine, transmission, ABS, and SRS modules
- ✓Live sensor data review during active running conditions
- ✓Smoke machine testing for unmetered intake air leaks
- ✓Oscilloscope waveform analysis for sensors and actuators
- ✓Wiring continuity and voltage-drop electrical tests
- ✓Written diagnostic report with component failure proof
Request an Estimate or Workshop Slot
Submit your vehicle details below and our service desk manager will review your request directly.
Why Motorists Choose Kestrel Autoworks
No part shotgunning
We never replace parts on a guess; we verify electrical or physical failure before quoting repairs.
Live operational data
Checking fuel trims and boost pressure under load exposes intermittent faults that simple code readers miss.
Reduced repeat visits
Targeting the root cause, such as a vacuum leak causing a sensor fault, prevents recurring dash lights.
Questions about this service
Does the fee cover the actual repair?
No, the diagnostic fee covers testing, smoke tests, and waveform analysis required to isolate the exact fault.
Will turning the warning light off fix the issue?
No, clearing the code only resets the dashboard; the light will return as soon as the ECU detects the fault again.
Can you test intermittent faults that only happen when cold?
Yes, we can arrange for the car to sit overnight so we can hook test probes up for the morning cold-start cycle.
Our Workmanship Commitment
All mechanical labour is backed by our twelve-month or 12,000-mile warranty. If an issue arises with fitted components or our installation within that period, we inspect and correct the fault at zero additional charge. Pricing & payment
What Local Drivers Say
Brought my estate in for an intermittent ABS sensor fault and rear arm bushing wear. They gave me a printed diagnostic scan, explained the issue on the ramp, and fitted forged alloy replacement arms. The car runs straight and quiet.
David P., Bristol, GBThe fixed quotation was identical to the final invoice. They showed me the old ceramic brake pads and cast iron discs in an inspection tray before I settled via bank transfer.
Rachel K., Bath, GBDirect communication with the mechanic who worked on the engine oil flush and timing belt. No generic sales talk, just clear mechanical facts and torque logs.
Graham T., Gloucester, GBAll services
Book Your Vehicle In Today
Send us your registration number and describe the problem your car has. We will call you back within two hours during workshop opening times with pricing and available slots.