Question about 2003 Jeep Wrangler
2002 6cly wrangler overheated replaced radiator now leaks oil and lacks power
There isn't much you could have done incorrectly by changing the radiator to cause the problems you have now. Therefore, I'm guessing that you badly overheated the engine. When that happens, engine seals become brittle and loose their ability to seal which results in oil leaks. High temperatures can cause the compression rings on the pistons to relax, in which case you are now loosing compression which not only causes performance loss but will also pressurize the inside of the engine and cause leaks.. Extreme heating can also allow your timing chain to stretch a bit, also causing performance problems.
If you have already checked the condition of the ignition system to make sure there is no arcing and spark loss, I'd do a compression and or cylinder leak-down test to check the internal condition of the engine.
If everything turns out to be OK inside, then treat this like any other performance problem and test all sensors, run a code test and make sure the air filter is clean and the converter is flowing well. As for oil leaks, Replace seals or gaskets that are leaking.
Posted on Jul 08, 2010
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Posted on Jan 02, 2017
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