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Jeep Engine Tech

Technical, helpful and educational information about Jeep engines. From vintage AMC V8’s to the modern 2.0L Turbo 4 all things engine related.

How to Test Compression Pressure on an AMC V8 Engine

Using a Simple Tool to Tell You a Lot About Your Engine’s Health. Whether you’re diagnosing a misfire in your vintage AMC 304 equipped Jeep CJ-5, checking on a tired 360 in a Jeep Wagoneer, or just curious about the health of that 401 you pulled from a junkyard Javelin, compression testing an AMC V8 …

Wrangler TJ Cooling System Maintenance Part 2

Continuing from page 1, we are flushing the cooling system in the jeepfan.com 2004 TJ Unlimited. In addition we are replacing the radiator cap and thermostat. Thermostat Installation Remove the upper radiator hose and the end of the heater hose that connects to the thermostat housing. Unplug the temperature sensor. Remove the 2 bolts on …

Wrangler TJ Cooling System Maintenance

The jeepfan.com 2004 Wrangler TJ Unlimited has almost 195,000 miles on it. Since we have only owned it a short time it’s hard to know its maintenance history and recently we have noticed that the coolant has been boiling in the overflow bottle. Even more recently it boiled so bad that it puked up antifreeze …

Wrangler JL 3.6L V6 Oil Change

The 2018+ Wrangler JL uses the same 3.6L V6 as the 2012-2018 Wrangler JK. There are some internal tweaks, but it’s mostly the same on the outside. A redesign of the top engine cover makes accessing the filter possible without removing the cover. Changing your oil yourself can save you some money but mostly it …

Jeep Wrangler Pentastar 3.6L Oil Change – Part 2

Continued from Part 1 – Tighten up the cap and move to the underside of the Jeep.  Using a 13mm socket loosen and remove the oil drain plug.  Make sure you have a drain oil container ready to catch the oil.  After allowing the oil to drain completely reinstall the plug and tighten. plug removal oil draining …

Jeep Engines – Factory Engines, Engine Conversions, Engine Swaps

These Jeep engine pages cover stock Jeep engines, engine swaps, engine performance, and engine rebuilds.

BDS Jeep Wrangler JK 3.6L Exhaust Extensions

PRESS RELEASE: New for 2012 is the Pentastar 3.6L in the Wrangler and Wrangler Unlimited models. For those of you looking to lift your new 2012 JK, the factory exhaust crossover pipe is in close proximity to the front driveshaft limiting the amount of droop to about 2” before they come in contact with each other.

Jeep Wrangler Pentastar 3.6L Oil Change

The jeepfan.com 2012 Wrangler Rubicon hit 3588 miles and the Change Oil indicator started showing on the instrument cluster after every startup.  Time for the first oil change..

6 On the Trail Radiator Repair Tips

By Rick Webster – 4X4Review.com For those of you that do their 4-wheeling in some remote area or in some vegetated sections that typically have tree limbs that poke out, we comprised this list of a few simple tricks that can fix a radiator leak (a small one) with out having to carry a spare …

Unichip Performance Module & Airaid Cold Air Intake Dyno Test – Part 2

Together with OK Auto we put two JK Wrangler Unlimiteds on the dyno at G&S Autoworks in Oxford, NJ to test the results of the performance products we were installing. The products involved int the test are the Unichip Performance Module and Airaid Cold Air Intake.

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