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XJ Upgrades / Tech Write-ups
Engine
Fri, 07/09/2010 - 12:47 —
djblade311
The 4.0L changed from Renix to High Output in June of 1991
99+ Intake Manifold Upgrade
Air Intakes and Filters
Camshaft Sprocket Bolt
Crankshaft pulley-to-vibration damper bolts
Diagnosing Jeep 4.0L Engine Noise
Engine Cooling System
Fuel Systems
Oil Filter
Rear Main Seal Replacement
Spark Plugs - V6 engine only
Throttle Body Mounting Nuts
Throttle Body Upgrades
Troubleshooting No-Start Issues
What motor mounts do you use?
‹ Vehicle Speed Sensors
up
99+ Intake Manifold Upgrade ›
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Related Terms
Engine Cooling System
Throttle Body Upgrades
Torque Specifications
Diagnosing Jeep 4.0L Engine Noise
Troubleshooting No-Start Issues