inline 6 problems till end of warranty? -
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post #1 of 22 Old 03-21-2007, 12:59 PM Thread Starter
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2006 TJ Wrangler 
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Location: Wilmington, NC
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inline 6 problems till end of warranty?

What problems have you had in the first 36000 -OR- 70000 miles of your powertrain's life and at what milage did they occur?

If you have had no problems feel free to say none and your current mileage.

I'll start: starter replaced around 11k... otherwise engine = amazing

06TJ Silver Ruby - REBB w/DT3000s, Quick Discos, Superwinch EPi9.0, Warn engine skid, PS Box Skid, Diff Guards, IPF Lenses, x51s soon
92YJ White - Slight Shackle Lift w/30x9.5 BFG ATs, Custom Beefy Bumpers
06TJ Khaki Sport - Traded in

Last edited by JeepMKcomin; 03-21-2007 at 02:13 PM.
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post #2 of 22 Old 03-21-2007, 01:03 PM
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2004 TJ Wrangler 
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Zero problems, 42k miles.

The 4.0 is supposed to be bullet proof and a long proven motor. I wouldn't suspect anything other than the cracked manifold on the eariler TJs.
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post #3 of 22 Old 03-21-2007, 01:07 PM
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Another common thing is the rear main seal.

2001 Jeep Wrangler Sport 4.0L - Amber Fire Pearl Coat
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post #4 of 22 Old 03-21-2007, 01:41 PM
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35k current, at one point I thought I had driveshaft u-joints (angry sparrows) starting to act up, but it went away. Otherwise, no drivetrain problems so far.

'03 Bright Silver Metallic TJ Sport
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Stock: 4.0L I6:5-speed:3.07 gears:D35 with Trac-Loc:15x7 Ecco wheels:Dual Top Group
Mods: 30x9.5 BFG A-T T/A KO's:JKS Quicker disconnects:Rock-It Man rocker guards:Jeep Medic oil pan/tranny skid:Kilby steering skid:Warn D30 diff guard:C4x4 D35 diff guard:Rusty's radiator guard:Skid Row LCA skids:SilverStar headlights and fogs:Hidden Hitch class III receiver:Old Realistic 40ch CB:2' Firestik II:Arizona Rocky Road tailgate antenna mount
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post #5 of 22 Old 03-21-2007, 01:45 PM
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drove an XJ the other day that has been in the family for a while(since 89), some oil leaks and noise from the power steering, but ran/shifted/tracked very well. Not too bad for 293,xxx miles w/ nothing but oil changes & tuneups
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post #6 of 22 Old 03-21-2007, 01:56 PM
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Trans second and fifth gear popping out at about 40k miles.

Bad sensor (forget which) at about 15k miles.

Rear main at about 85k miles.

'00 TJ With toys, lift and tires.
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post #7 of 22 Old 03-21-2007, 02:00 PM
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cracked manifold at around 30K and currently 97K with no problems

2000 XJ, 5" lift, 35s, Locked
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post #8 of 22 Old 03-21-2007, 02:04 PM
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first 36,000 I had no problems, at around 60K the 2nd gear synchro went and the starter went.
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post #9 of 22 Old 03-21-2007, 03:00 PM
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17000 and no problems. Runs like a champ

2006 Jeep Wrangler---SOLD!

Nowhere at present is there such a measureless loathing of their country by educated people as in America. --Eric Hoffer

Originally Posted by rmb2485
cheap mods are like a drug dealer giving you your first few for free...they will only get you addicted and before you know it every paycheck goes into your new habit :rofl:
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post #10 of 22 Old 03-21-2007, 03:02 PM
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30,000 miles, no motor probs whatsoever.
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post #11 of 22 Old 03-21-2007, 03:02 PM
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98 Tj replaced radiator, exhaust manifold, plug for gauge cluster, clutch, tires, shocks, tune up, and then sold it after the heater core went. Traded it in for 7k with 100k plus and bought my 2004. Been driving it for 4 months, no problems. Although sometimes I think that I manufactur problems cause I want to use the warranty before it runs out in April!


2004 Electric Green Wrangler Sport. Bone stock with a Dana 44! SOLD and I miss it alittle.

2006 Mazdaspeed 6! Replaced the Jeep.
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post #12 of 22 Old 03-21-2007, 03:03 PM
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Nothing til 120k on my 01..then crack head (0331 issue) and a broken Crankshaft bearing. new engine is on order.
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post #13 of 22 Old 03-21-2007, 03:03 PM
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13000Km rear main seal leaking. fixed up under warranty

Originally Posted by mdm
However it is a strange twist in the cosmic thread that will not allow the driver of a Jeep that has experienced air bag deployment off-road to consume beef for 48 hours after the event. You can consume chicken, pork, turkey, or emu.
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post #14 of 22 Old 03-21-2007, 03:18 PM
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Leaky radiator and transfer case at 8,000 (fixed under warranty). Also, the rear D44 wasn't sealed well... but I'll fix that once I hit 15,000. Otherwise, I love it!

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post #15 of 22 Old 03-21-2007, 03:33 PM
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Replaced radiator at 60k. Other than that no problems in 75k miles.
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