Jeep Wrangler JK Engine Problems, Repair How Tos

How to Replace Air Filter

Hesitation, stumbling under wide-open-throttle and poor fuel economy are signs of a clogged engine air filter, which can happen quickly in the Wrangler's dusty, off-road environment.

How to Reset Your ECU

Still waiting for those performance modifications to kick in?

How to Check Engine Codes

Speak your Jeep's language.

How to Clean Throttle Body

Drive your Wrangler to its full potential.

How to Use SeaFoam

Is SeaFoam like Snake Oil or legitimate?

How to Tap Into Fuse Box

Tapping the fuse box is the best way to power a new accessory.

How to Use Scan Tool

Reading trouble codes isn't only for professionals who have expensive readers.

How to Replace Water Pump

Don't let a bad water pump go; replace it sooner rather than later.

Engine Performance Modification

Make your JK into a trail terror or highway cruiser with these engine performance additions.

How to Install Oil PCV Catch Can

Catch cans help keep oil out of your intake manifold, which is a place you don't want it to be.

How to Install PCV Valve

The PCV valve serves a very important purpose inside the engine.

How to Replace Oil Pan

Make that oil leak disappear with fresh oil pan gasket.

How to Replace EGR Valve

Cure your engine's poor drivability with a EGR valve replacement.

How to Replace Catalytic Converter

The harsh off-road environment that Wrangler drivers thrive in can be tough on emissions systems and catalytic converters.

How to Replace Knock Sensor

Time for a new knock sensor?

How to Replace Camshaft Position Sensor

You can replace the crankshaft position sensor very easily, in your driveway, using basic tools.

How to Replace Serpentine Belt

Removing and replacing a Jeep’s serpentine belt isn’t difficult, but there are a few things you should be aware of before attempting it.

How to Reset Oil Change Light

Changing your JK Wrangler’s oil and oil filter is quick as well as easy, but now you have to figure out how to reset the oil change light.

How to Change Engine Oil

Regular maintenance of your engine's life blood is necessary to ensure proper engine lubrication and protection.

How to Reset Check Engine Light

Rid your dash of that pesky Check Engine light.

Jeep Wrangler JK Engine Guides

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