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Free car repair & maintenance guides

Understand warning signs, maintenance choices and likely repair routes before you spend. Written and reviewed by SSK Mechanics, with over 15 years' trade experience.

423published guides
13practical topics
15+years' experience

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Search by symptom, warning light, service or vehicle. Every guide includes practical context and routes back to relevant professional help where appropriate.

Showing 133–144 of 423 guides Choose a guide to read the full advice.
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Illustration for: DPF Explained: What a Diesel Particulate Filter Actually Does
Fuel, Emissions & Running Costs

DPF Explained: What a Diesel Particulate Filter Actually Does

Updated 7 Aug 202610 min read
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A mechanic working on car engine repairs inside a workshop setting — SSK Mechanics guide to Whining Noise While Driving: What Causes It
Noise & Sensory Diagnostics

Whining Noise While Driving: What Causes It

Updated 14 Aug 202611 min read
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Close up of an EGR valve removed from a diesel engine showing carbon build-up
Fuel, Emissions & Running Costs

What Is an EGR Valve and Why Do They Fail?

Updated 7 Aug 202610 min read
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A white car suspended on a lift in an automotive repair shop, showcasing maintenance work — SSK Mechanics guide to Rattling Noise From Underneath the Car: What It Usually Means
Noise & Sensory Diagnostics

Rattling Noise From Underneath the Car: What It Usually Means

Updated 14 Aug 202612 min read
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Illustration for: Why Your Fuel Economy Gets Worse As Your Car Gets Older
Fuel, Emissions & Running Costs

Why Your Fuel Economy Gets Worse As Your Car Gets Older

Updated 7 Aug 202610 min read
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Close-up of a gloved auto mechanic's hand working with a spring in a workshop — SSK Mechanics guide to Knocking or Clunking Over Bumps: What's Going On Underneath
Noise & Sensory Diagnostics

Knocking or Clunking Over Bumps: What’s Going On Underneath

Updated 14 Aug 202611 min read
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Fuel economy gauge on car dashboard
Fuel, Emissions & Running Costs

Fuel Economy & Emissions: What Actually Affects Your Running Costs

Updated 7 Aug 202610 min read
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Orange high voltage cabling visible in an electric vehicle engine bay with warning markings
DIY vs Professional

EV and Hybrid Cars: Why DIY Work Is Riskier (and What’s Still Safe to Check)

Updated 7 Aug 202610 min read
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A CV joint and driveshaft boot on the underside of a car
Noise & Sensory Diagnostics

Clicking Noise When Turning? It’s Probably This

Updated 14 Aug 202612 min read
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Mechanic using light to inspect vehicle undercarriage in workshop for maintenance — SSK Mechanics guide to Can You Bleed Your Own Brakes? What Competent DIYers Should Know
DIY vs Professional

Can You Bleed Your Own Brakes? What Competent DIYers Should Know

Updated 7 Aug 202610 min read
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A brake pad wear indicator tab close to the disc surface
Noise & Sensory Diagnostics

Squealing Brakes: Common Causes and When to Worry

Updated 7 Aug 202610 min read
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Mechanic performing maintenance on a car engine outdoors during the day — SSK Mechanics guide to Jump Start or New Battery? How to Tell Which Your Car Needs
DIY vs Professional

Jump Start or New Battery? How to Tell Which Your Car Needs

Updated 13 Aug 202610 min read
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