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post #1 of 18 (permalink) Old 02-01-2019, 06:49 PM Thread Starter
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Join Date: Jan 2019
Location: Upper Cumberland, Tennessee
Own a Commander?: Yes
Model year: 2006
Trim Package: Limited
Power-Train: 5.7L V-8 Hemi
4WD
If 4WD - system: QD-II
Current Mileage: 150,000
Posts: 25
Looking to buy a Commander this spring

Quote:
Originally Posted by HyperionAlpha View Post
If it's what I'm guessing, the 2006-2010 line had valve issues. The seats would break and fall into the chamber, highly likely that the kind of catastrophic failure this would cause could damage the intake manifold when metal flies upwards into it, leaving it to be replaced as well. Mine made it to 108k before this failure, most of them start to break from this at around 75-85k. Mine lasted til 108k, then it was time for a reman. I'm looking to keep it for another ten years at least.


I'm looking to buy a Commander this spring but trying to decide between the hemi and 4.7. I've read some threads talking about power differences but longevity and repair costs are equally important to me. Are the issues you had just on the Hemi?


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The Journey Continues.....bought my first Commander with a bad engine and very limited information. Coolant in the cylinders, new water pump box on the front seat, thinking this all adds up to a major overheat.
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post #2 of 18 (permalink) Old 02-01-2019, 07:55 PM
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Join Date: Oct 2015
Location: East Coast of Florida
Own a Commander?: Yes
Model year: 2008
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Power-Train: 4.7L V-8
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Quote:
Originally Posted by Sevenjays View Post
I'm looking to buy a Commander this spring but trying to decide between the hemi and 4.7. I've read some threads talking about power differences but longevity and repair costs are equally important to me. Are the issues you had just on the Hemi?


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@Sevenjays ;

Welcome to the forum;

I'd suggest reading the below thread;

https://www.jeepcommander.com/forums...46=#post410402


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Last edited by Big Blue; 02-01-2019 at 07:57 PM.
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post #3 of 18 (permalink) Old 02-01-2019, 09:26 PM
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Join Date: Jul 2017
Location: Westminster,Co
Own a Commander?: Yes
Model year: 2006
Trim Package: Limited
Power-Train: 5.7L V-8 Hemi
4WD
Current Mileage: 150,000
Posts: 29
Would never buy another jeep with the 4.7 Expensive piece of junk. Stick with the tried and true Hemi
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post #4 of 18 (permalink) Old 02-02-2019, 05:17 AM
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Join Date: Oct 2015
Location: East Coast of Florida
Own a Commander?: Yes
Model year: 2008
Trim Package: Sport
Power-Train: 4.7L V-8
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If 4WD - system: QT-II
Current Mileage: 101,300
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Quote:
Originally Posted by JeepAddiction View Post
Would never buy another jeep with the 4.7 Expensive piece of junk. Stick with the tried and true Hemi
That's a matter of opinion;

I can tell you that in my time here; I've seen & read about more problems with the 5.7L Hemi than all of the other power trains the Commander came with; Particularly the 06 & 07 Hemi's.

I could also easily make a case that the 4.7L is the most reliable power-train that the Commander ever came with; I'm sure there are people here that would disagree with me;

I've had my 08 4.7L for 5 years now and I'm over 100,000 miles; I've have had zero mechanical issues with it, other than replacing a bad radiator cap and a dead battery. I also replaced the actuator motor on the transfer case unnecessarily but Chrysler reimbursed me for that, so it cost me nothing.

I will say, that I'd probably shy away from the 06/07 4.7L - because of the lower HP & Torque they put out, compared the 2008 & later 4.7L;

But that being said, the 06/07 4.7L's are still an extremely reliable & dependable power train in my opinion.


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Last edited by Big Blue; 02-02-2019 at 05:20 AM.
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post #5 of 18 (permalink) Old 02-02-2019, 07:30 AM
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Join Date: Nov 2018
Location: FL Gulf Coast
Own a Commander?: Yes
Model year: 2006
Trim Package: Limited
Power-Train: 5.7L V-8 Hemi
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Current Mileage: 131,000
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Quote:
Originally Posted by JeepAddiction View Post
Would never buy another jeep with the 4.7 Expensive piece of junk. Stick with the tried and true Hemi
I'm not familiar with the 4.7... but I've owned my 06 Commander Hemi since new and have yet to experience any issues with the 5.7 powertrain.

2'' RC Lift, Bull Bar, Hella OffRoad Lighting, Black Grill, Blackened-Out Limited Chrome Accents, K&N CAI, Flowmaster Exhaust, 265 70 R17, SkyJacker Rear Shocks, LED Interior Lighting, BullyDog GT Gas Tuner, WeatherTech Floor Liners, Darkened LED Headlight Assemblies, Smoked Spyder Fog Light Assemblies, more to come...
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post #6 of 18 (permalink) Old 02-02-2019, 07:47 AM
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Join Date: May 2009
Location: Cleveland TN
Own a Commander?: Yes
Model year: 2006
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Power-Train: 5.7L V-8 Hemi
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If 4WD - system: QD-II
Current Mileage: 103,000
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I had a 4.7 in a 05 Grand Cherokee with the only problem were the broken exhaust manifold bolts. My current 06 Commander 5.7 hemi I have had since 2008. No big problems - water pump, front Diff bushings, both covered on my lifetime warranty Gas millage is almost the same between the 3.7, 4.7 and 5.7 as the flying brick is not aerodynamic. The hemi will also run on 4 cylinders (MDS) under light load helps the gas mileage (got 21 on expressway once). The big problem of dropping valve seats which usually means a new engine on the hemi is usually connected to overheating the engine, later Commanders (08?) the problem was fixed.

06 Commander Limited Hemi - QDII,
Past -89 Comanche, 98 Grand Cherokee (2WD), 2000 Cherokee, 05 Grand Cherokee Limited 4.7
Had to replace the brakes - they opened more gas stations in town
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post #7 of 18 (permalink) Old 02-02-2019, 03:15 PM
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Join Date: Oct 2015
Location: East Coast of Florida
Own a Commander?: Yes
Model year: 2008
Trim Package: Sport
Power-Train: 4.7L V-8
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If 4WD - system: QT-II
Current Mileage: 101,300
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Quote:
Originally Posted by Arapahoe View Post
I'm not familiar with the 4.7... but I've owned my 06 Commander Hemi since new and have yet to experience any issues with the 5.7 powertrain.
I think, regardless of the power-train, guys/girls that have owned their Commander since new tend to have far less issues then 2nd 3rd 4th or 5th hand owners - for obvious reasons.

When you are a 2nd, 3rd, 4th or 5th hand owner, more often than not, you are buying someone else's problem/problems.


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post #8 of 18 (permalink) Old 02-02-2019, 03:20 PM
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Join Date: Oct 2015
Location: East Coast of Florida
Own a Commander?: Yes
Model year: 2008
Trim Package: Sport
Power-Train: 4.7L V-8
4WD
If 4WD - system: QT-II
Current Mileage: 101,300
Posts: 4,874
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Quote:
Originally Posted by rblapham View Post
I had a 4.7 in a 05 Grand Cherokee with the only problem were the broken exhaust manifold bolts. My current 06 Commander 5.7 hemi I have had since 2008. No big problems - water pump, front Diff bushings, both covered on my lifetime warranty Gas millage is almost the same between the 3.7, 4.7 and 5.7 as the flying brick is not aerodynamic. The hemi will also run on 4 cylinders (MDS) under light load helps the gas mileage (got 21 on expressway once). The big problem of dropping valve seats which usually means a new engine on the hemi is usually connected to overheating the engine, later Commanders (08?) the problem was fixed.
I believe that issue was addressed in the '09 & beyond Hemis.


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post #9 of 18 (permalink) Old 02-03-2019, 04:00 AM
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Join Date: Jan 2019
Location: Tennessee
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Model year: 2007
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Well, I can only speak as. Short time owner. I just purchased a 07 4.7 QT2 about a week ago. Although there are other years and larger engines with more HP out there I feel that she has more than enough power for my needs. I live in East TN and have already pulled 2 cherokees out of a mud hole, and have towed a 21 foot pontoon boat about 100 miles and havent har any issues. I thought about a Hemi but what I have found either had horrible to no service records or had great records and people were asking large sums. I decided my best bet was one a friend of the family had purchased last year. If you find one with great service records in your price range I think that would be the beat place to start but so far, I love my Jeep. Just my 2c.

2007 4.7 QT2 Sport 132k All Stock for now....
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post #10 of 18 (permalink) Old 04-17-2019, 11:21 AM Thread Starter
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Join Date: Jan 2019
Location: Upper Cumberland, Tennessee
Own a Commander?: Yes
Model year: 2006
Trim Package: Limited
Power-Train: 5.7L V-8 Hemi
4WD
If 4WD - system: QD-II
Current Mileage: 150,000
Posts: 25
First, thanks for the responses and sorry I didn't get back earlier. Back went out which kept me from work or moving much at all, now that I'm back at work I haven't had a chance to slow down to think much! But I did get my first Commander and am happy to be back in the Jeep family after 19 years away!

Picked up an 06 Commander this week with the Hemi and QDII. It looks to be fully loaded. Downside is the engine is bad. The only history I can get on it is the previous owner bought it last spring (he paid $9,000 for it, I feel bad as I just picked it up for $1,500) the dealer I got it from was putting it up for auction as the engine is bad. It looks like they just put a new water pump on it. I haven't tried to turn it over yet as I'm waiting for my boroscope to show up today when I'll take a peak inside the cyclinders. Assuming the engine is bad, I'm planning on ordering one from Pro Engines.

Pro Engines requires the thermostat and intake manifold to be replaced to validate their warranty. Any suggestions on an intake manifold?

I'm looking more at reliability than high performance but will be putting a Trail Dash programmer or something similar in it for sure.

I'm also looking at what else I should upgrade or replace while the engine is out. I'll be doing the work myself.

Headers and exhaust look expensive and seem more beneficial for high rpm gains.

Thanks.
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