Engine noise at start - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > JK Jeep Wrangler Forum > JK General Discussion Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 07-09-2013, 12:05 AM   #1
Jeeper
 
Mach2Plus's Avatar
 
Join Date: Jun 2011
Location: Houston Texas
Posts: 110
Engine noise at start

2011 Wrangler Unlimited, 29000 miles. Factory Spec engine oil. This vehicle is not a daily driver. Consequently, it is not unusual that she will sit without being started for up to 7 days. At the end of these periods, only on initial start, I get a racket and shaking emanating from the engine compartment. This will last only for 1-2 seconds. Unnerving to say the least. I am using oil filters which are advertised to have an anti drain back valve. At the next scheduled maintenance I plan to take this up with the dealership. I have very low expectation of help from them, however. Anybody have any idea on what is occurring in the engine? My concern is engine longevity. Thanks

__________________
Over Hue PhuBai RSVN. Summer of 1967
Mach2Plus is offline   Quote Quick Reply
Old 07-09-2013, 01:28 AM   #2
Newb
 
Join Date: Jul 2013
Posts: 13
I think I have the same issue on my 2009. Supposedly this is the same problem but I haven't tried to fix it yet. Good Luck

http://www.wranglerforum.com/f33/fyi...er-186603.html

feldejak is offline   Quote Quick Reply
Old 07-09-2013, 01:40 AM   #3
Jeeper
 
Mach2Plus's Avatar
 
Join Date: Jun 2011
Location: Houston Texas
Posts: 110
This is a definite mechanical sound.
__________________
Over Hue PhuBai RSVN. Summer of 1967
Mach2Plus is offline   Quote Quick Reply
Old 07-09-2013, 06:33 AM   #4
Jeeper
 
Join Date: May 2013
Posts: 59
Try looking at the thread" update on ticking pentastar... update..."
blackx5 is offline   Quote Quick Reply
Old 07-09-2013, 07:13 AM   #5
Jeeper
 
Off Pavement's Avatar
 
Join Date: Sep 2012
Location: The Silver State
Posts: 574
There have been quite a few threads on "dry start" sounds with the Pentastar 3.6. I recently read someplace that the new 3.6 is using a different oil filter so Jeep may have changed the design a bit for this issue... Valve clatter on start up.
__________________
The Road To Paradise Is NOT Paved
Off Pavement is offline   Quote Quick Reply
Old 07-09-2013, 07:17 AM   #6
Jeeper
 
Rubi513's Avatar
 
Join Date: Apr 2013
Location: Conroe, Texas
Posts: 1,575
Quote:
Originally Posted by blackx5 View Post
Try looking at the thread" update on ticking pentastar... update..."
I think the tickastar went in the 2012. I am guessing he has the 3.8
__________________
"I have not failed. I've just found 10,000 ways that won't work."
Rubi513 is offline   Quote Quick Reply
Old 07-09-2013, 07:29 AM   #7
Jeeper
 
Off Pavement's Avatar
 
Join Date: Sep 2012
Location: The Silver State
Posts: 574
Quote:
Originally Posted by Rubi513 View Post
I think the tickastar went in the 2012. I am guessing he has the 3.8
I shoulda read the original post a little closer before I open my big yap...
__________________
The Road To Paradise Is NOT Paved
Off Pavement is offline   Quote Quick Reply
Old 07-09-2013, 09:42 AM   #8
kik
Jeeper
 
kik's Avatar
 
Join Date: Dec 2008
Posts: 4,335
Images: 1
It's the drain back valve in the oil filter on a 3.8. Swap it out with another Mopar or Wix and you won't have a problem.
kik is offline   Quote Quick Reply
Old 07-09-2013, 09:50 AM   #9
Jeeper
 
insylem's Avatar
 
Join Date: Apr 2013
Location: Enterprise, Alabama.
Posts: 881
Images: 3
Quote:
Originally Posted by Mach2Plus View Post
At the next scheduled maintenance I plan to take this up with the dealership. I have very low expectation of help from them,
Not sure what is sadder.

How dealerships have earned this reputation,

Or that they, nor Chrysler (or any other manfacture for that matter) cares that they have earned that reputation.


If a dealership got a reputation for honoring warranty work and having high quality maitenance, I bet sales for that brad vehical would shoot through the roof!
__________________
2013 Wrangler Unlimited Rubicon 10th Anniversary
insylem is offline   Quote Quick Reply
Old 07-09-2013, 01:46 PM   #10
Jeeper
 
Mach2Plus's Avatar
 
Join Date: Jun 2011
Location: Houston Texas
Posts: 110
I had a jenyoowine Mopar oil filter installed today. We'll see.
__________________
Over Hue PhuBai RSVN. Summer of 1967
Mach2Plus is offline   Quote Quick Reply
Old 07-09-2013, 03:49 PM   #11
Jeeper
 
Join Date: Jan 2011
Location: ny
Posts: 418
Quote:
Originally Posted by Mach2Plus View Post
I had a jenyoowine Mopar oil filter installed today. We'll see.

I had same issue with my 2010 3.8 even sitting for a day at first. Wix or mopar filter will help, but letting it sit for a week or so you might still get some clatter on initial startup. I notice it more now in my garage that my hardtop is off. I don't think you will do it much harm, but you appear to be a car guy so here is what I do. Run synthetic oil "platinum ultra" with a K&N HP-2009 oil filter, its aprox 35% larger than the stock filter and its designed for the 3.7 jeep motor. Same specs for valve and size clears everything fine. Excellent filter in my opinion and a little extra capacity. Mine will clatter after sitting for a week though too. If you really want to eliminate noise/startup wear this AutoEngineLube Pre Lube System Reduces Engine Wear Up To 60%. I'm not running this because currently only driving my jeep 7k a year, and at that rate I don't expect to have an oil related failure in a time frame that would justify it. You appear to be a vet thank you for serving and take care.
deepbluerubi is offline   Quote Quick Reply
Old 07-09-2013, 03:54 PM   #12
Jeeper
 
Mach2Plus's Avatar
 
Join Date: Jun 2011
Location: Houston Texas
Posts: 110
Smile

Thanks, Amigo
__________________
Over Hue PhuBai RSVN. Summer of 1967
Mach2Plus is offline   Quote Quick Reply
Old 07-09-2013, 04:07 PM   #13
Jeeper
 
Old Dogger's Avatar
 
Join Date: May 2012
Location: Phoenix, Rattlesnake Country
Posts: 3,072
Quote:
Originally Posted by Rubi513 View Post
I think the tickastar went in the 2012. I am guessing he has the 3.8
X2
Old Dogger is offline   Quote Quick Reply
Old 07-09-2013, 04:17 PM   #14
Jeeper
 
Join Date: Jan 2011
Location: ny
Posts: 418
Quote:
Originally Posted by Mach2Plus View Post
Thanks, Amigo

Also, I prime the oil filter when I change them. I fill it with oil and let it soak in. I then pour out what isn't trapped in the filter media back in the container. Other wise with the horizontal position of the filter it would be a big ol mess instead of a minimal mess as you screw it on. This helps minimize a really hard dry start every 5K or so when I change the oil. That sump system might work really well for off roading with sudden pitches of the vehicle and the oil pickup possibly starving at times. I used something similar "accusump" on my 69 Z28 back in the early 80's, but oil related issues with that vehicle were due to sudden braking and accelerating and cornering back then. Then again spinning it to 8k and speeds up to MPH didn't do much for engine longevity either............
deepbluerubi is offline   Quote Quick Reply
Old 07-09-2013, 04:26 PM   #15
TOK
Jeeper
 
TOK's Avatar
 
Join Date: Mar 2013
Posts: 1,073
I realize you have the 3.8, but also notice this with the Pentastar when it sits for a week. During the winter, it might be sitting for longer periods of time. My warranty period is going to expire before I get anywhere near the mileage cap.

Has anyone made an ignition cut-off so you can crank the engine without it firing? This used to be easy in older cars, but might be more difficult in new ones. Basically, it lets you spin the engine with the starter to build up oil pressure before you flip the switch to let it fire. Seems like it'd really help in the new stuff that fast idles to build catalyst heat.

There are aftermarket pre-oilers as well, but I think thats a much more involved process.
TOK is offline   Quote Quick Reply
Old 07-12-2013, 11:04 AM   #16
Jeeper
 
Mach2Plus's Avatar
 
Join Date: Jun 2011
Location: Houston Texas
Posts: 110
I installed a MOPAR filter and still have the same problem.

__________________
Over Hue PhuBai RSVN. Summer of 1967
Mach2Plus is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



logo carid shop wrangler parts carid fender flares custom wheels store avs deflectors at carid
» Rates
Get low rates on auto insurance in Canada!

» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 10:27 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC