Engine work covers the whole range — from a single misfire that triggers a check-engine light up through a full long-block replacement on a tired motor with 250,000 miles. The job that customers fear most ("I think it's the engine") is also the job where a careful diagnostic saves the most money. At Frank's Automotive in Seguin we don't open hoods speculatively — every engine repair starts with a written diagnosis, a written estimate, and your sign-off before we touch anything beyond inspection.
What we handle
Engine work breaks down into a few categories:
- Diagnostics — Bosch OBD-II scan tools, live-data analysis, compression test, cylinder-leakdown test, smoke test for vacuum leaks, fuel-pressure verification, injector flow
- Drivability / tune-up — spark plugs, ignition coils, plug wires (where present), throttle-body service, intake cleaning, PCV system inspection
- Cooling system — thermostat, water pump, hoses, radiator. We catch most overheating problems here, before the head gasket pays the price
- Timing components — timing belt or chain replacement, tensioners, idlers
- Top-end work — valve covers and gaskets, head removal, head gasket service, valve adjustment
- Major repair — short-block, long-block, or full engine replacement when the bottom end is finished. We can source quality remanufactured options as an alternative to new
You'll get a phone call before we go past initial inspection. No surprises on the invoice.
When to bring it in
Bring it to us if you're seeing:
- Steady or flashing check-engine light (a flashing light means active misfire — damaging the catalytic converter — pull over)
- Loss of power under acceleration or up hills
- Rough idle, stalling at stops, or hard cold-starts
- Overheating — temp gauge climbing past the middle mark in normal driving
- Knocking, ticking, or whining that wasn't there last week
- Visible smoke — blue (oil), white (coolant), black (rich fuel)
- Oil consumption outside what's normal for your engine (more than a quart between changes is a flag)
Driving an overheating, knocking, or low-oil-pressure engine for another 10 miles can turn a $500 repair into a $5,000 one.
Why Frank's
ASE Certified technicians, Bosch Service Center status (so we have the diagnostic depth for most modern engines), and OEM or OEM-equivalent parts on every install. The work is backed by our 24-month / 24,000-mile warranty.
From tune-up to overhaul, we diagnose first, quote in writing, and only do the work you authorize. Request an appointment or call (830) 379-4840 with the year/make/model and what you're seeing.