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Stock JK Tech Bulletin board forum regarding issues with OE (original equipment) components of the Jeep JK Wrangler (Rubicon, Sahara, Unlimited and X) such as factory suspension parts, engine, transmission, body parts, interior fixtures and the on-board computer.
View Poll Results: What's your odometer reading? Problems??
25,000
19.29%
50,000
25.05%
75,000
20.44%
100,000
14.59%
125,000
8.16%
150,000
7.29%
200,000
3.07%
250,000
1.34%
300,000
0.38%
350,000+ (please list if higher)
0.38%
Voters: 1042. You may not vote on this poll

This is a poll for the JK 3.8L V6 and it's engine longevity. Engine problems so far?

Old 07-02-2016, 02:36 PM
  #471  
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My 2007 developed low end knock at 180000kms. I replaced bearings but it came back. Finally swapped in a rebuilt motor. The old crank had alot score marks on the bearing journals. The engine swap wasnt too difficult. Lets see how long this one lasts.
Old 07-06-2016, 05:21 PM
  #472  
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I have an 08 with 140k. Replaced the water pump twice. Manifold leak keeps a ticking. I'm the second owner and have only had it for 1.5 years
Old 07-10-2016, 08:17 PM
  #473  
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My 2008 just seized the oil pump & engine @ 65K miles Trying to find a lo mile 2011 engine to drop in, if you have one please let me know. Thx.
Old 07-20-2016, 05:17 AM
  #474  
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Cracked rad at 136k km
pulley at 110k
front and rear mains are leaking at 136k
injectors are noisy
Old 07-20-2016, 06:32 AM
  #475  
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Originally Posted by matty86suk
Cracked rad at 136k km pulley at 110k front and rear mains are leaking at 136k injectors are noisy
It is unfortunate, and in the name of awkward, what replacement did you go with on the radiator?

I'd rather replace mine now being just over 105k miles.
Old 08-28-2016, 10:01 PM
  #476  
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over 140,000... two power steering pumps, one alt, one water pump, one knock sensor, still ticks at start up and has since about 100,000 miles ago. Synthetic oil. Still turns the tires at 75 to 80 and I get about 14 to 16 mpg. Only burns a small amount of oil... 1/4 of a quart between changes. I have noticed some seaping of coolant around the intake manifold... but it is minor at this point. I have thought it was not going to last as long as it has, but it keeps going strong.

I worry more about the auto tranny giving up....
Old 09-25-2016, 10:13 AM
  #477  
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93,000 - 2009, 2 door no problems, just normal maintance and some preventive. Changed ball joints at 92k, replaced drag link and tie rod at 92k replaced all hoses at 92k. Switched to royal purple at 45k, no more oil problem.
Old 09-26-2016, 09:20 PM
  #478  
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130,000
2010
I'm 3rd owner
No issues - yet 🙏
Old 09-26-2016, 09:31 PM
  #479  
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Original owner. 2008. 115k miles. Runs like a top.
Old 10-29-2016, 06:47 AM
  #480  
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Original Owner. 2008 with 95,000 miles on her...No Issues!!! Oil Changes with Mobil 1 every 3000 miles. I also regularly tow a 3,500 lb. camper with it.
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Last edited by nyjeepguy; 10-29-2016 at 06:54 AM.

Quick Reply: This is a poll for the JK 3.8L V6 and it's engine longevity. Engine problems so far?



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