Every parts store in Temecula will read your codes for free, and that is genuinely useful - it tells you which system is unhappy. What it does not tell you is which part failed. A P0301 misfire on cylinder one can be a coil, a plug, an injector, a wiring fault, a vacuum leak or low compression. Six different repairs, six different prices, and only one of them fixes the car.
We start where the free scan stops. Freeze frame data shows the conditions when the fault set. Live data shows what the sensors are reporting right now, with the engine loaded rather than idling in a parking bay. Bidirectional control lets us command a component on and off and watch whether the car responds. By the time we quote you a repair, we have proved the failure rather than guessed it.
Scan tools that talk to every module, not just the engine - body control, ABS, transmission, airbag, TPMS and telematics all store their own faults, and a fault in one can look like a fault in another. A smoke machine for EVAP and intake leaks, which finds in ten minutes what a code will only ever describe. A multimeter and a test light for the electrical work, because voltage drop across a corroded ground is invisible to a scan tool.
Fuel pressure, compression and cylinder leak-down testing come out when the data points that way. On older Temecula Valley trucks and pre-OBD classics there is no data at all, and the job goes back to compression, spark and fuel in that order.
Almost all of it happens where your car already is - a driveway in Redhawk, a business park off Jefferson, an apartment lot in Murrieta, a work parking lot in Menifee. You do not need to be there the whole time, and you do not need a ride home.
Some faults need a lift and a full day: intermittent electrical gremlins, transmission internals, anything that needs the car driven under specific conditions repeatedly. Those move to our garage, and the diagnostic time still comes off the repair.
Photographs from our own diagnostics work across the Temecula Valley. Plates and VINs are redacted; nothing here is stock.
Between $95 and $150 depending on the system and how long the fault takes to reproduce. If you have us do the repair, that fee comes off the bill. We tell you the number before we drive out, not after.
We can usually narrow it down and tell you roughly what a repair costs, and we are happy to do that for free. What we will not do is quote a part off a code without testing - that is how people end up buying three parts to fix one problem.
It depends what set it. A loose fuel cap and a failing catalytic converter both light the same lamp. A flashing light is different - that means active misfire and unburnt fuel going into the converter, and you should stop driving it. Call us the same day.
We will clear codes after a repair, but clearing them to hide a fault does not work - the readiness monitors reset too, and the smog station fails you for incomplete monitors. We would rather fix the fault and let it pass properly.
A front or rear axle of pads and rotors takes us about an hour in your driveway, and it is one of the few repairs where a mobile mechanic is genuinely faster than a shop - no drop-off, no lobby, no shuttle.
Read More →We come to your driveway or office parking lot, change the oil and filter by hand in about thirty minutes, take the old oil away, and look over the rest of the car while we are under there.
Read More →Most no-start calls we take in the Temecula Valley turn out to be battery or connection, not starter - which is why we test the whole starting and charging circuit before anyone buys a part.
Read More →Open seven days a week, 9am to 8pm, across the whole Temecula Valley. Same-day on most bookings.
Call (951) 618-1982