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Old April 29th, 2014, 09:26 PM   #1
RDK_YJ88
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Default My DD Liberty CRD build

Few months ago I picked up a 2005 Jeep Liberty CRD. I've always been intrigued by these little diesels, but the CRD's have always gotten a bad rap. After months of research I decided to get one. It had 199,xxx miles when I got it. I'm currently at 205,xxx miles. So far I seem to average about 25 mpg with 70/30 highway/city driving. Much better than the 16-17 in my Silverado.

Here is a pic from when I got, after some snow:




It is originally from Georgia, and it shows. It's spotless underneath. It was owned by a company and was fleet owned until about 120,000 miles when the guy I got it from purchased it. He always had it dealer maintained and had all the receipts to prove it.

So, the first thing I did was go to Sam's CRD Noob Guide, found on Lost Jeeps, under the CRD section. I pretty much followed his list from the top.

Step 1: Replace the air filter

Step 2: Replace the fuel filter

Step 3: Clean the Map sensor

Step 4: Check your boost hoses

Step 5: Change the oil

1: Starting with the air filter, I went with the recommended WIX filter. It's cheap, usually in stock everywhere and requires no modifications.

2: Moving on to the fuel filter. Again, I went with a WIX, Oreilly's was able to have one for me next day. Holy shit, these things are huge.



Pretty easy to change, just unscrew the old one, screw in the new one. Then just pump the primer pump until you feel pressure and loosen the bleeder.

3: Next is the MAP sensor. Pretty important one. This little bugger will rob some performance and cause some drive-ability issues. Good news is it's quite easy to remove and clean. These things have been known to clog up in as little as 15,000 miles with the EGR operable. It's usually overlooked and never cleaned.

Here is a picture of a dirty one:



And, a clean one:




4: Boost hoses, these thing get covered in oil from the EGR. The factory hoses will deteriorate quickly from the oil. This could leave you stranded with a very slow Liberty. Luckily they upgraded the hoses and they now have a plastic liner that keeps the oil from soaking into the hoses. You can always uprgade to SAMCO hoses too. Mine has the updated hoses, but I will upgrade to the SAMCO's eventually.

5: Oil. Jeep says to use Full Synthetic 5w40 oil . So I used 5w40 Rotella T6 oil with a Bosch filter. Jeep recommends to change the oil at 6,250 miles. Alot of people run them out to 10,000 without any problems. I'm probably going to stick closer to the 6,250. Also, alot of CRD's came with dip sticks that were marked incorrectly, causing people to over fill them. I believe they take 6.6 quarts of oil, but I'll have to double check that.

Last edited by RDK_YJ88; May 5th, 2014 at 04:56 PM.
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Old April 29th, 2014, 09:44 PM   #2
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The EGR valves on these motors is what has given them such a bad rap. The EGR causes many drive-ability issues. As you read above, the EGR puts a lot of soot, and along with the CCR, alot of oil into the engines intake, destroying the boost hoses, plugging the intercooler, plugging the intake, clogging the MAP sensor, etc.

To fix the problems related to the EGR, you need to disable it. There are two ways to do that. 1: you can get a tune from a company like Green Diesel Engineering that will disable it with out any CEL (recommended). or 2: you can just simply unplug the MAF sensor on the intake tube. However this will cause a CEL. This is the route I took, until I get a tune. Disabling the EGR valve will increase the life of the MAP sensor and eliminate most drive-ability issues.

This mod is known as the ORM (off road modification) due to the check engine light.


Now that the maintenance is finished I moved on to some fun stuff, the exhaust. I read a few people recommending that you remove the muffler and replace with a straight pipe. Some complained it was loud, others said it didn't make a difference in sound, but they all said it drove better and netted better mileage. So, I cut it and the Cat out and replaced them with 2.5" pipe. So now it has an open 2.5" exhaust from the turbo, out the back. I'd say it got a tiny bit louder, but not very much. However you get much more whistle out of it and it seems to spool quicker. Overall I like it, but will be adding a new cat back in.
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Old April 29th, 2014, 09:56 PM   #3
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This past weekend the real fun began, the timing belt. Jeep recommends the timing belt be replaced every 100,000 miles. Since the Jeep is now at 205,000 miles, it was due. Since this motor is an interference motor, I didn't want to risk it failing. On a good note, they designed the rockers to fail before anything else, so if a timing belt does break, you don't destroy the whole engine, just the rockers. Although the rockers are $50 each, and you need 16 of them.

I was a little worried about doing the timing belt for the first time, but luckily someone by the screen name of COchickenrobot on Youtube made a 6 part video showing the process step by step. It went really smooth for me and I didn't have any surprises.

Here's what it looks like with the timing belt cover off:



Gears/pulleys galore.

I have about 200+ miles on the new belt and it seems to be running quite well.

She's good for another 100,000:




After the timing belt, I replaced the rear upper ball joint. The Liberty has a rear wishbone suspension with a big ass ball joint on the axle end. Mine was pretty worn out and clunking at low speeds. Picked up a MOOG from rockauto.com for about $50. I'm so glad I got a southern Jeep, every bolt came right out and it went smoothly.

Here's the new ball joint installed:

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Old April 29th, 2014, 09:57 PM   #4
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Cool. Was interested in these as well till we got a patriot. I like me some diesels!
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Old April 29th, 2014, 10:01 PM   #5
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Future plans:

Small lift with 31" tires
3" exhaust
GDE Hot Tune bringing it up to 200 HP and 365 ft/lbs

I'd like for this to take over as the camping/road trip rig, and also my new Snofari ride.
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Old April 29th, 2014, 11:11 PM   #6
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Might think about putting a drain valve on the oil pan. Id also think about adding an inline lift pump. My girlfriend pick one up before winter and has enjoyed driving it and has been getting around 20mpg.
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Old April 30th, 2014, 05:51 AM   #7
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44 and 9" with coil overs front and rear?
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Old April 30th, 2014, 07:15 AM   #8
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Quote:
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Might think about putting a drain valve on the oil pan. Id also think about adding an inline lift pump. My girlfriend pick one up before winter and has enjoyed driving it and has been getting around 20mpg.
My drain plug looks to be in good shape, but if I see it starting to strip I'll get the valve. I've looked into the lift pumps, but I haven't had any problems where I it would help me.

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44 and 9" with coil overs front and rear?
Probably not, but it could happen
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Old April 30th, 2014, 05:58 PM   #9
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What no stacks and tow mirrors?? Isn't that the first and most important mod to a diesel.. lol just kidding, I've always thought these little diesel jeeps were cool to drive
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Old April 30th, 2014, 06:13 PM   #10
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I've read afew places on line you can replace the in tank pump with a hole sending unit out of an 2005 era dodge... I haven't done a lift pump on the girlfriends yet either, but read that the stock pump is kind of undersized.. Have you had the egr out yet? I've been waiting for the wether to warm up to pull hers apart to clean it.
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Old April 30th, 2014, 06:40 PM   #11
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44 and 9" with coil overs front and rear?
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Probably not, but it could happen
Within the next year.
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Old April 30th, 2014, 07:20 PM   #12
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Quote:
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What no stacks and tow mirrors?? Isn't that the first and most important mod to a diesel.. lol just kidding, I've always thought these little diesel jeeps were cool to drive
Hood stack FTW!


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I've read afew places on line you can replace the in tank pump with a hole sending unit out of an 2005 era dodge... I haven't done a lift pump on the girlfriends yet either, but read that the stock pump is kind of undersized.. Have you had the egr out yet? I've been waiting for the wether to warm up to pull hers apart to clean it.
Not yet, but I can imagine it's pretty dirty.
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Old April 30th, 2014, 07:22 PM   #13
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Old May 1st, 2014, 08:08 AM   #14
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your 25 mpg ave., is that before or after the things you did to it?
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Old May 1st, 2014, 11:22 AM   #15
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After all the maintainence. From what I've read I'm still a little low. I should be closer to 28 mpg. But I don't drive that slow either.
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Old May 5th, 2014, 04:09 PM   #16
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Well, today I stopped by Green Diesel Engineering in Commerce Township. Keith, the owner, is a great guy. He seems very knowledgeable with these CRD's, I know he does some other small diesel stuff too. Anywho, he set me up with the Hot Tune today. Only took about 15-20 min. Wow, what a difference.

Keith claims an increase from stock (160 hp) to 200 hp, and from stock (265 ft/lbs) to 364 ft/lbs. It's a big difference. Very enjoyable to drive now. I've got a few more upgrades I need to tackle now:

-Euro spec torque converter
-Samco boost hoses
-Fuel heater head

Also picked up an A-pillar Bi-gauge pod from gaugepods.com. Planning on putting Boost/Vacuum pressure and Trans temp. Keith told me I shouldn't have to worry about EGT's on it.


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Old May 6th, 2014, 12:33 AM   #17
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Sweet, can't wait for a ride tomorrow!
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Old May 6th, 2014, 09:03 AM   #18
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torque converter will be your next mod. I have a buddy in fenton with a maroon crd liberty. he loves it. I was going to recommend that same guy for the tune but you already got it done. watch the powersteering hose if it hasn't already been replaced. its about 10ft long and has a spot it wears out from rubbing against something. but I cant remember on what.
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Old May 6th, 2014, 06:02 PM   #19
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Quote:
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torque converter will be your next mod. I have a buddy in fenton with a maroon crd liberty. he loves it. I was going to recommend that same guy for the tune but you already got it done. watch the powersteering hose if it hasn't already been replaced. its about 10ft long and has a spot it wears out from rubbing against something. but I cant remember on what.
I believe I've seen him around. Torque converter is on the list.
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Old July 3rd, 2014, 06:44 AM   #20
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Well, ended up selling this CRD and getting a new tow rig. Picked up a 2004.5 Duramax CCSB.



And good timing too. I found a great deal on another CRD down in Georgia, so I went and picked it up. Only problem was it needed some engine work, but I'll get more into that when I get back with it.




Southern Jeep, so it has not a spec of rust. Just needs a bath and some motor work.
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