Oil Leak Diagnostics and Repair
Vehicle Diagnostics — Cheyenne, WY
Oil runs downhill and gets blown backward by airflow, which is why the wet spot you can see is often not where the leak actually starts. Trevor physically inspects the engine from the top down — valve covers, timing covers, oil cooler lines, pan gaskets, and seals — to trace the leak to its true source before quoting a repair.
Fixing the actual source the first time is cheaper than replacing gaskets one at a time from the bottom up. On high-mileage trucks and diesels, Trevor will also tell you honestly whether a leak is worth chasing now or safe to watch — not every seep justifies a repair bill.
What's Included
- Top-down tracing to the true leak source
- Valve cover, timing cover and pan gasket leaks
- Rear main seal and oil cooler line leaks
- Honest advice on what needs fixing now vs. watching
- Gas engines and light-duty diesels
How Trevor Diagnoses a Problem
- Verify the complaint
Before touching a wrench, Trevor reproduces the symptom you're describing — sometimes on a test drive with you in the passenger seat so you can point out exactly what you're feeling or hearing.
- Inspect the vehicle
A visual and hands-on physical inspection often reveals what a scan tool can't: chafed wiring, soot trails, wet gaskets, loose components.
- Scan for trouble codes
Diagnostic trouble codes (DTCs) narrow the search to the right system and circuit.
- Test to confirm
The suspect component gets tested and confirmed as failed before it's replaced. Then the repair is verified with a final test drive.
Related Diagnostics Services
Frequently Asked Questions
How much does oil leak diagnostics cost at TDC Automotive?
Labor is billed hourly at $125/hr for gas vehicles and $135/hr for diesel, and you'll get findings and an estimate before repair work begins. Call (307) 996-0980 with your year, make and model and Trevor can give you a realistic idea of what's involved.
Do I need an appointment for oil leak diagnostics?
Call ahead at (307) 996-0980 — as an owner-operated shop, TDC schedules work so your vehicle gets Trevor's full attention rather than sitting in a lot for a week.
Where is the shop, and what area do you serve?
The shop is at 8407 Aztec Drive in Cheyenne, Wyoming, and serves all of southeast Wyoming plus the Nebraska panhandle and Northern Colorado — customers regularly drive in from Laramie, Wheatland, Torrington, Pine Bluffs, Wellington, Fort Collins and Greeley.