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Engines don’t lie. If it’s running rough, knocking, overheating, or that check-engine light won’t go away — something needs attention. At Knapp’s Madison Auto & Towing, we don’t throw parts at a problem. We figure out what’s really wrong and fix it right the first time.
We work on all makes and models, and we handle the jobs other shops don’t want. Every engine repair is backed by our Two-Year / 24,000-Mile Warranty, with free vehicle pick-up and delivery available to make life easier.
Check Engine light on (and staying on)
Shaking, stalling, or rough idle
Loss of power when you hit the gas
Strange knocks, ticks, or rattles
Overheating or coolant loss
Burning oil or poor fuel mileage

Computer engine diagnostics
Fuel & ignition system repair
Cooling system and overheating fixes
Timing belt & chain service
Head gasket and internal engine work
Oil leaks and seal replacement
Preventative maintenance to stop bigger problems

If the check engine light is on, it’s running rough, losing power, overheating, leaking oil, or making noises it never made before — that’s your car asking for help.
No. We diagnose first. Guessing is expensive and we don’t do that to people.
Absolutely. We keep a lot of older vehicles on the road that other shops give up on.
Yes — we’re known for them. Head gaskets, timing components, electrical gremlins — we’ve seen it.
Bring it in. Second opinions save money more often than you’d think.
Yes — 24-hour towing is available and we can bring it straight to the shop.
