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Fault guides · Kiers GarageFault guides from real jobs.
Real cars I've had my scanner and meter on. The code, the readings, and what the job turned out to be.
Qashqai engine light with P0597: how I found the faulty thermostat
A 2017 Qashqai 1.2 DIG-T with P0597 after its service, and the readings that showed the thermostat's heater had failed.
Mazda 5 engine light with P2009: both intake runner solenoids dead
Engine light on for two months. How the meter showed both solenoids had failed, and what else turned up.
Citroen C3 airbag light: what the scan found
Why the airbag system wasn't working at all, and what else a full check turned up.
Vauxhall Mokka 1.4 Turbo losing coolant: how I tested for a head gasket
Still losing coolant after the thermostat, hoses and tank were replaced. The tests that pointed at the head gasket.
Ford Transit U2101 and air con that won't work: when the engine computer's set-up is the problem
Engine light on and dead cab air con after a new compressor, switch and regas. What the code and the live data showed.
Timing belt in the oil: what to check on a PureTech, EcoBoost or EcoBlue
Which engines run the belt in the oil, what goes wrong, and the checks you can do before it costs you an engine.
Fault codes for flippers
Real codes from my jobs, and what each one means for your max bid.
I'm Kieran, mobile diagnostics round Hemel, from £60.
Buying a car to fix and sell? Bring it to the Thursday live
In Car Flip Academy I show beginners how to flip their first car: what to buy, what to check and the most to bid. Every Thursday at 7pm UK time, members bring listings and I go through them live: the likely repairs, what the car will sell for and the most I'd pay.
Buying a used car? Run the reg through my £7 history check first.