lower engine noise after oil change

manuel754 · **Joined:** Wed Jul 14, 2010 9:15 pm **Posts:** 35

about a week after the last oil change the engine "sounds dieselie" .... at idle and comeing to a stop ..... it soulds like a flat lifter on an old chevy....i went from shell rotella t fully synthetic 5w40 to mobil one 0w40( as recomended in the owners manual and at auto zone)
i hope i did not wipe this motor out!!! could there be some other ,common , easy noise?
your imput?

racertracer · **Posted:** Fri Sep 10, 2010 7:50 pm

I highly doubt that brand new out of the can 0w 40 Mobil one oil would be the cause of your engine noise.

It may have been there while driving it with 5w 40 and prior to the 0w 40.

How many quarts did you put in?

manuel754 · **Joined:** Wed Jul 14, 2010 9:15 pm **Posts:** 35

i fulled it to the full line.....6.4 quarts
the noise was not there the day i did the oil change , was not there with the 5w40 but its there now..... how loud it yours? ....i've never seen another crd and have nothing to compair to.. ours has 45k miles. i heard these dont really break in till 50k

Glend · **Posted:** Sat Sep 11, 2010 12:09 am

I to have noticed differing acoustic properties of various oils in the KJ CRD. For example, I used to run a 5W-40 semi-synthetic and it did quiet the engine compared to a full synthetic like SIN Diesel (no longer produced), and Mobil 1 (even in 5w-40 configuration).

salden77 · **Joined:** Tue Jun 01, 2010 2:42 pm **Posts:** 271

have any of you guys put a larger oil filter on your crd? like a purolater L40017? my engine at idle seems to be a noticeably more quite with the larger filter, its just an oversized filter that is made for the big fords, threads right on.

CATCRD · **Posted:** Sun Sep 12, 2010 10:59 pm

salden77 wrote:

have any of you guys put a larger oil filter on your crd? like a purolater L40017? my engine at idle seems to be a noticeably more quite with the larger filter, its just an oversized filter that is made for the big fords, threads right on.

Did you miss this thread? viewtopic.php?f=5&t=55268

I've personally never noticed a difference in noise with the different filter. They are always loud. :mrgreen:

Edit, I just checked on the L40017 and the micron rating is 32 as opposed to 21 for the stock filter, so in this case bigger is not better. I run the Mobil1 M1-301, which is a little bigger than stock and same micron rating, same as a WIX 51515.

manuel754 · **Joined:** Wed Jul 14, 2010 9:15 pm **Posts:** 35

i dumped the mobil 1 and went back to shell synthetic 5w40 rotella t.....i dumped the motorcraft fl400 and put on a fram ph8a ( a trick i learned on my old ford escorts) the noise got less but is still there....either gonna dump this piece o crap chrysler or run it till what ever is making noise finally breaks .......anyone looking for a crd with 44k miles? :wink:

linewarbr · **Posted:** Mon Sep 13, 2010 9:15 pm

Take a video of it running and post it here. You can upload it to YouTube and post a link, or embed it here from photobucket or another pic website like it.

I ran Mobil 1 0w-40 my first couple of changes, then have used Mobil 1 5w-40 TDT since with no problems. I use a stock-size Purolator PureOne filter. I've noticed that it runs a little quieter the first 20 or 30 miles after an oil change, then it sounds like normal after that.

salden77 · **Joined:** Tue Jun 01, 2010 2:42 pm **Posts:** 271

CATCRD wrote:

salden77 wrote:

have any of you guys put a larger oil filter on your crd? like a purolater L40017? my engine at idle seems to be a noticeably more quite with the larger filter, its just an oversized filter that is made for the big fords, threads right on.

Did you miss this thread? viewtopic.php?f=5&t=55268

I've personally never noticed a difference in noise with the different filter. They are always loud. :mrgreen:

Edit, I just checked on the L40017 and the micron rating is 32 as opposed to 21 for the stock filter, so in this case bigger is not better. I run the Mobil1 M1-301, which is a little bigger than stock and same micron rating, same as a WIX 51515.

the gigantic L40017 was already on the jeep when i bought it, i didnt personally install it, i just got the stock size wix filter when i changed the oil last. the L40017 was so huge i think if i went offroading it might have got ripped off or something, i have a picture of both filters next to each other, almost double the size of the stock filter. my jeep can be as loud as it wants, thats why i straight piped it :rockon:

warp2diesel · **Posted:** Mon Sep 13, 2010 10:01 pm

manuel754 wrote:

i dumped the mobil 1 and went back to shell synthetic 5w40 rotella t.....i dumped the motorcraft fl400 and put on a fram ph8a ( a trick i learned on my old ford escorts) the noise got less but is still there....either gonna dump this piece o crap chrysler or run it till what ever is making noise finally breaks .......anyone looking for a crd with 44k miles? :wink:

Mobile, Wix, and Amzoil filters are all better than Fram in their performance.
The more junk you can keep out of your oil with a good filter, the longer the engine will run.

I added a centrifuge to my CRD and hope to run an Oil Analysis when I get to 10k on the oil. A friend runs his 5.9L Cummins to 15K with no problems.
The way Centrifuges and By Pass filters work is by using an internal relief valve to direct the excess oil that will get dumped back into the pan into the respective unit to better clean the oil. The Centrifuge develops high artificial gravity to extract the fine particles and a By Pass filter uses a finer filter media. Either way you get even finer filtration and cleaning of the oil. Something else to think of.

salden77 · **Joined:** Tue Jun 01, 2010 2:42 pm **Posts:** 271

I added a centrifuge to my CRD and hope to run an Oil Analysis when I get to 10k on the oil. A friend runs his 5.9L Cummins to 15K with no problems.
The way Centrifuges and By Pass filters work is by using an internal relief valve to direct the excess oil that will get dumped back into the pan into the respective unit to better clean the oil. The Centrifuge develops high artificial gravity to extract the fine particles and a By Pass filter uses a finer filter media. Either way you get even finer filtration and cleaning of the oil. Something else to think of.[/quote]

were do you get a set-up like this and what is the install like? also any pictures of what your set-up looks like?

manuel754 · **Joined:** Wed Jul 14, 2010 9:15 pm **Posts:** 35

ok.... i've had the check enging light on for a few months , egr low flow code.... tonight i do a fuel filter .... i did not have any fuel on hand and did not want to hand pump (lazy) so i filled it up with 911 fuel additive .....ive done this with my other diesels .....we drove it to dog class about 35 miles and now the check engine light is off ...
weird!!

the noise is not "better " .... sounds like a snap snap snap ....or tack tack tack .....i have not video or audio (sorry geeks) .... i have driven about 200 miles and other than noise ... it runs the same.....

fram , wix , motorcraft , amsoil, bla bla bla .... i've never had an engine failure with a simple oil change ..ive done 3 oil and filter changes in 9k miles ....if this crd is sooo delicate that a 32 vs 27 micron filter makes the engine fail, then i may not want it.... :grim:

manuel754 · **Joined:** Wed Jul 14, 2010 9:15 pm **Posts:** 35

runs but wont move now.... made louder noise this morning and i made it to my parking spot at work..... now wont move..... flex plate ?? torque converter bolts??? trans????
probably not the oil after all!!!

engine starts freely so i dont think flex plate complerly broken .... getting towed home and i'll pull the starter tonight or tomorrow.... to see if any thing is visable

CATCRD · **Posted:** Wed Sep 15, 2010 5:23 pm

manuel754 wrote:

runs but wont move now.... made louder noise this morning and i made it to my parking spot at work..... now wont move..... flex plate ?? torque converter bolts??? trans????
probably not the oil after all!!!

engine starts freely so i dont think flex plate complerly broken .... getting towed home and i'll pull the starter tonight or tomorrow.... to see if any thing is visable

You don't need to pull the starter to look at the flex plate. Near it there is a square rubber plug about 2" x 2" you pop out to look in.

lower engine noise after oil change

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