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Unread 02-20-2011, 09:59 PM   #16
ronjenx
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Originally Posted by 07BlackOps View Post
Well if that happens, then the dealership needs to give him a new motor, or rebuild this one, but it will never be the same! And honestly how often does that actually happen rings get installed upside down or the rods get installed incorrectly mistakes a first year auto body student learns to prevent
That seems to be the cause in several JK 3.8's that were torn down for burning too much oil.

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Unread 02-21-2011, 06:29 AM   #17
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That seems to be the cause in several JK 3.8's that were torn down for burning too much oil.
Well holy crap, that seems like a quality control issue and chrysler needs to seriously improve on, maybe getting their engines assembled elsewhere or stricter quality checks!
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Unread 02-21-2011, 07:54 AM   #18
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Well holy crap, that seems like a quality control issue and chrysler needs to seriously improve on, maybe getting their engines assembled elsewhere or stricter quality checks!
There was a Mexican plant that made the pistons and rods in 2007 and 2008 that put out a few bad batches. In many cases, the piston rings are aligned together, which let oil into the combustion chamber. IIRC, they stopped using that plant after that. My 2008 JK had to get a new short block put in last year.
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Unread 02-21-2011, 09:00 AM   #19
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Thats good news. Im glad Chrysler had that much sense.
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Unread 05-04-2011, 08:16 PM   #20
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My 2008 JK Rubi has been consuming oil since 24k. Now has 45k and still consuming about a quart a 1000. According to the dealership, Chrysler finds this to be acceptable and will not proceed (under warranty) unless I was to pay for a tear down. Being I do my services every 5k and I'm putting a quart per 1k, it seems I'm almost paying for that tear down already. By the time I come in for services, I just about have fresh oil (joking). My point is, it's getting pretty expensive adding so much oil between services. I've never had a major issue with Jeep before but I'm definitely having issues now. I guess this is what I get for staying with American Made. When's Chrysler/JEEP going to step up and do something about it?
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Unread 05-04-2011, 08:33 PM   #21
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I guess this is what I get for staying with American Made. When's Chrysler/JEEP going to step up and do something about it?
If you get on a forum for any of the foreign makes, you will also see threads about excessive oil consumption.

No line of engines is free of oil consuming engines.
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Unread 05-05-2011, 02:06 PM   #22
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Originally Posted by jeepsuck
bought used 2007 Jeep wrangler from dealer had 40K on it. 3 months later I went to change oil at 45,000. I was notified by the oil change place no oil on dip stick. According to the oil change place it was at least 3.5 to 4 quarts low. A week later the main bears on 3 and 5 both spun. I have always owned Toyota and have never ever been down even a half a quart in 5000 miles.
New Engine time. If you own one of these i suggest you keep an I on the oil usage once is starts dump it.
Check your oil...... troll

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Unread 05-06-2011, 06:53 PM   #23
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bought used 2007 Jeep wrangler from dealer had 40K on it. 3 months later I went to change oil at 45,000. I was notified by the oil change place no oil on dip stick. According to the oil change place it was at least 3.5 to 4 quarts low. A week later the main bears on 3 and 5 both spun. I have always owned Toyota and have never ever been down even a half a quart in 5000 miles.
New Engine time. If you own one of these i suggest you keep an I on the oil usage once is starts dump it.



No vehicle is free of issues, no matter who makes it...go to a Toyota forum...you'll see...I am not saying I wouldn't be mad if I were you, but it does sound like you would be happier in a Toyota...
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Unread 05-06-2011, 07:24 PM   #24
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I still don't understand how people can go from one oil change to the next without the slightest idea they should check the oil level, at least a few times.
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Unread 05-06-2011, 09:17 PM   #25
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bought used 2007 Jeep wrangler from dealer had 40K on it. 3 months later I went to change oil at 45,000. I was notified by the oil change place no oil on dip stick. According to the oil change place it was at least 3.5 to 4 quarts low. A week later the main bears on 3 and 5 both spun. I have always owned Toyota and have never ever been down even a half a quart in 5000 miles.
New Engine time. If you own one of these i suggest you keep an I on the oil usage once is starts dump it.
Be sure to dump it on someone who doesn't do any research on known issues for a vehicle when buying one used and won't keep an "I" on the oil, then will blame the manufacturer with sweeping pronouncements to make themselves feel better about their own lack of due diligence before the sale and basic common sense maintenance after.
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Unread 05-06-2011, 11:05 PM   #26
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Be sure to dump it on someone who doesn't do any research on known issues for a vehicle when buying one used and won't keep an "I" on the oil, then will blame the manufacturer with sweeping pronouncements to make themselves feel better about their own lack of due diligence before the sale and basic common sense maintenance after.
Common sense maintanence doesnt fix an incorrectly built motor...

edit: Any way to tell if our motor was one made in said Mexican factory, besides seeing if it burns quarts of oil?
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Unread 05-06-2011, 11:23 PM   #27
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Common sense maintanence doesnt fix an incorrectly built motor...

edit: Any way to tell if our motor was one made in said Mexican factory, besides seeing if it burns quarts of oil?
Common sense maintenance will keep you from running out of oil, which will cause more damage, and void the warranty if the dealer is the one who discovers it.

The build plant is in the engine number, on the back of the block, just below the left head/block parting line. S = Saltillo; T = Trenton
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Unread 05-06-2011, 11:25 PM   #28
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Common sense maintenance will keep you from running out of oil, which will cause more damage, and void the warranty if the dealer is the one who discovers it.

The build plant is in the engine number, on the back of the block, just below the left head/block parting line. S = Saltillo; T = Trenton
I must have misunderstood what you meant. I agree, common sense will SAVE the motor, not the extra oil

Im in the market for an 08, is that a number the dealer should have on hand, or will i have to crawl under it to find it myself?
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Unread 05-06-2011, 11:31 PM   #29
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I must have misunderstood what you meant. I agree, common sense will SAVE the motor, not the extra oil

Im in the market for an 08, is that a number the dealer should have on hand, or will i have to crawl under it to find it myself?
I've tried to see it from underneath. No go.
The only way I could see it was with a mirror, stuffed between the left head and the firewall.
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Unread 05-06-2011, 11:40 PM   #30
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I appreciate the quick responses Ronjenx! I guess Ill have to grill the stealership when I get there about it.
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