Diagnostics in Upland, CA
A warning light, a new noise, a car that just doesn't feel right. We use advanced diagnostic equipment to find the cause, then explain it in plain words before any work.
Price Call or text for a quote
Signs you need it
- Check engine light on, or flashing
- Rough idle or stalling
- Hesitation when you accelerate
- A drop in fuel mileage
- A new noise, smell or vibration
We diagnose check engine lights and drivability concerns on most makes and models, foreign and domestic. We also perform module programming on site for most vehicles, so a new part can be set up here instead of at the dealer.
What customers say
Good honest people still exist!! Eddie and his technicians were able to diagnosis my vehicles breaks [...]. Eddie told me it should still be under warranty and it was. So I have to take my car back to the dealership. They did not charge me a dime. I cannot say enough how relieved I am to find a trustworthy auto repair shop...
This is the first review I've left on Yelp, and I simply can't think of a better place to leave my first review than Alonso's! Alonso and his team, after hearing my concerns, gave my car a thorough check and it turned out that my worst fears had not been realized... I seriously have to commend these guys for how meticulous, honest, patient and reassuring they are. Thank you, Alonso and team!
Questions
Is it safe to drive with the check engine light on?
A steady light means the car has stored a code and should be checked soon. A flashing light can mean the engine is misfiring. If it flashes, drive gently, and call or text us before you go far.
Will I know the price before you start?
Yes. California law requires a written estimate and your OK before any repair work, and that is how we like to work anyway. We explain what we found and your options, then you decide.
Can you program modules?
Yes. We perform module programming on site for most vehicles.
Related services
Serving Upland, Claremont, Montclair, Rancho Cucamonga, Ontario, Pomona, San Antonio Heights and surrounding areas from our shop in Upland, CA.