Auto Repair Services
Check Engine Light Diagnosis in Houston
Rudy reads the code, checks the live data, and tests the suspect part with a meter or a stethoscope before he replaces anything. Then he tells you what failed and what the repair costs.
What to Expect
How We Handle It
Computer scan, live data and hands-on testing before any part is replaced
Rough idle, stalling, misfires, hesitation and poor fuel economy
A plain explanation of what failed, and a price before work starts
What's urgent, what can wait, and what you can ignore
Common Questions
Frequently Asked Questions
Why is my check engine light on?
The engine computer has seen a fault and stored a code. It could be a loose gas cap, a misfire, a bad oxygen sensor or a failing catalytic converter. The code narrows it to a system, and testing finds the part.
Can't I just read the code myself with a cheap scanner?
You can, and it's a fine place to start. A P0171 means the engine is running lean, which can come from a vacuum leak, a dirty mass airflow sensor, a weak fuel pump and several other things. Rudy uses the code, the live data and testing to find which one.
Is it safe to drive with the check engine light on?
If the light is steady, you can usually drive it a short distance to the shop. If it's flashing, the engine is misfiring badly enough to damage the catalytic converter, so stop driving and call us.
How much does a check engine light diagnosis cost in Houston?
It depends on the car and the problem, and we give you the price before we start. It costs less than replacing the wrong part. Once Rudy finds the cause, you get a price for the repair before any work is done.
Related Services
Other Ways We Can Help
Computer & Electronic Diagnostics
ABS light, airbag light, a module that won't talk, or a fault the dealer couldn't find. Rudy scans every module and traces the fault. (713) 937-2400.
Learn moreEngine Repair
Overheating, oil leaks, a head gasket, misfires or a noisy timing chain. Rudy finds the cause and repairs the engine. Northwest Houston, (713) 937-2400.
Learn moreHelpful Reads
From Rudy’s Blog
Why Those Cheap OBD2 Scanners Tell You Nothing
A $30 code reader gives you a code, not a diagnosis. P0301 doesn't tell you which cylinder misfired or why. Find out why throwing parts at codes wastes money.
6 min read →DiagnosticsWhat That Sound Your Car Is Making Actually Means
A grinding noise under braking isn't always brake pads. A clicking on turns might not be your CV joint. Learn what your car is actually telling you.
6 min read →MaintenanceDo You Really Need That Repair? How We Decide.
The dealer says you need everything. We're here to tell you what you actually need, what can wait, and what you can skip.
6 min read →Get Started
Light On? Bring It In.
Call the shop and tell Rudy what the car is doing.