Smell gas in my oil - JeepForum.com

Reply
 
LinkBack Thread Tools
post #1 of 24 Old 11-14-2011, 08:28 AM Thread Starter
speedbucket
Registered User
1993 ZJ 
 
Join Date: Jan 2011
Location: chesapeake
Posts: 3,562
Smell gas in my oil

93
5.2L
253K

I noticed my oil pressure at 1750rpm (cruise at 55mph) was steady at 50 when it is normally 55-60 so i checked my oil and it smells of fuel and seams to be a little thin, good color, but im at 3k on this oil.

i know that i've got 250k miles on my rings and that may be a culprit but i'm thinking no on that because this has only started in the last week and i would have noticed that gradually over time so heres what im thinking

-Bad injector maybe??
leaking out alot after from residual fuel pressure after running or overnight and seeping past the rings?

-no slow starts but i would think the pump would prime quick enough to not let me notice it
- i do have a puff off smoke on start from cold or if it sits for a couple minutes which could be plenum (trying to make it through hunting season before tackling this) or a loaded cylinder from leaking injector right?

- noticed a slight decrease in mileage

- every 10 days or so it will throw a "22" for 30 seconds -egr code

-It idles steady at 650-700rpms
i do not feel a noticeable shake at idle but my mid/low throttle seems pretty weak (thinking plenum) and i have some light smoke out the valve cover/dip if i remove when running, which i figured is just high mileage blow by

my first thought is to:
- throw a fuel pressure gauge on the schraeder valve on the rail and see what it does over night
- check for wet spark plug?i figured i would feel a dead cylinder though
-install stick of dynomite and take cover
- compression check, ive never done one before
hopefully you engine gurus (rat,bad bird, techno, ......etc.. oh and even caliguiri if you can post coherently) can help me out here


http://www.jeepforum.com/forum/f22/speedbuckets-zj-build-1361322/
V8 zj at 6" . Double tri rear and true 3 link front. Stretched to 108"
speedbucket is offline  
Sponsored Links
Advertisement
 
post #2 of 24 Old 11-14-2011, 08:31 AM
Shadowless127
Registered User
1997 ZJ 
 
Join Date: May 2010
Location: Smithtown
Posts: 182
my oil pressure is never 55-60 at load....

Gone: 1997 ZJ Limited 5.2L - NP249, Skid Plates, JVC KDR-320 HU
Shadowless127 is offline  
post #3 of 24 Old 11-14-2011, 08:34 AM Thread Starter
speedbucket
Registered User
1993 ZJ 
 
Join Date: Jan 2011
Location: chesapeake
Posts: 3,562
Quote:
Originally Posted by Shadowless127 View Post
my oil pressure is never 55-60 at load....
it holds steady at 38-40 at idle and and normally is 60ish at load
granted that is with 3k on oil and if freshly after oil change it is 65-70 under load

http://www.jeepforum.com/forum/f22/speedbuckets-zj-build-1361322/
V8 zj at 6" . Double tri rear and true 3 link front. Stretched to 108"
speedbucket is offline  
post #4 of 24 Old 11-14-2011, 09:45 AM
JS97ZJ
Registered User
2004 WJ 
 
Join Date: Dec 2009
Location: Dingmans Ferry
Posts: 2,284
leaky injectors
when to engine is off fuel is still dripping into the crank via the pistons.
JS97ZJ is offline  
post #5 of 24 Old 11-14-2011, 11:35 AM
PolkaPower
Registered User
1998 ZJ 
 
Join Date: Aug 2011
Location: The Abyss
Posts: 19,373
I thought it was normal to have a little gas smell? At least from what I have read.
PolkaPower is online now  
post #6 of 24 Old 11-14-2011, 12:21 PM
wsar10
Registered User
2003 WJ 
 
Join Date: Dec 2008
Location: State College, PA
Posts: 2,179
replace PCV ??

QUOTE=billzcat1;wsar10 is right on point on this oil thread - as usual. Anyone reading this would be well-served taking his advice.


-03 WJ laredo 4.0 120k a few minor mods
-93 XJ 5spd, 3" zone lift
wsar10 is offline  
post #7 of 24 Old 11-14-2011, 01:09 PM Thread Starter
speedbucket
Registered User
1993 ZJ 
 
Join Date: Jan 2011
Location: chesapeake
Posts: 3,562
Pcv is 4k old.

http://www.jeepforum.com/forum/f22/speedbuckets-zj-build-1361322/
V8 zj at 6" . Double tri rear and true 3 link front. Stretched to 108"
speedbucket is offline  
post #8 of 24 Old 11-14-2011, 01:46 PM
1717pxcb
Registered User
1997 ZJ 
 
Join Date: Nov 2011
Location: e. stroudsburg
Posts: 64
every car i've had - oil always smelled a bit like gas
1717pxcb is offline  
post #9 of 24 Old 11-22-2011, 08:40 PM
ZJPunk98
Registered User
2002 WJ 
 
Join Date: Oct 2005
Location: North Kingstown
Posts: 2,351
any update?

Erik

98 ZJ 5.2L JGC Limited Sold
02 4.7L HO JGC Overland
ZJPunk98 is offline  
post #10 of 24 Old 11-22-2011, 08:48 PM
Fishhead
Registered User
1996 ZJ 
 
Join Date: Sep 2011
Location: Naples
Posts: 27
Oil should not smell like gas!!!!!, a burnt smell maybe.

I don't know the cause of your problem but something is not right.

My push mower just had the same problem and was the carb gasket where it bolts to the gas tank,,,different I know but,,,,,,,,,,,,,,,,
Fishhead is offline  
post #11 of 24 Old 11-23-2011, 02:27 AM
ErikTheRad
Registered User
1993 ZJ 
 
Join Date: May 2010
Location: Marysville
Posts: 420
If you've got a vehicle with 100k+ on the odometer, go out and pull the dipstick and tell me you don't smell a bit of gas. IMO, this is hardly cause for alarm.
ErikTheRad is offline  
post #12 of 24 Old 11-23-2011, 03:29 AM Thread Starter
speedbucket
Registered User
1993 ZJ 
 
Join Date: Jan 2011
Location: chesapeake
Posts: 3,562
I am yet to do anything with it. I know what high mileageoil smells like. I would not be wasting everyone's time if it was normally like that. Thanks for reading and I will proceed with my diagnosis thoughts from my first post since no posted anything better

http://www.jeepforum.com/forum/f22/speedbuckets-zj-build-1361322/
V8 zj at 6" . Double tri rear and true 3 link front. Stretched to 108"
speedbucket is offline  
post #13 of 24 Old 11-23-2011, 05:56 AM
wsar10
Registered User
2003 WJ 
 
Join Date: Dec 2008
Location: State College, PA
Posts: 2,179
there's always the obvious......Rings !
When our go-karts or min-bikes get gas smell in the oil we usually start ordering parts for a rebuild and change the oil every day we ride until the rebuild

QUOTE=billzcat1;wsar10 is right on point on this oil thread - as usual. Anyone reading this would be well-served taking his advice.


-03 WJ laredo 4.0 120k a few minor mods
-93 XJ 5spd, 3" zone lift
wsar10 is offline  
post #14 of 24 Old 11-23-2011, 07:02 AM
Candymancan
Registered User
1998 ZJ 
 
Join Date: Aug 2010
Location: Virginia
Posts: 5,328
Quote:
Originally Posted by ErikTheRad View Post
If you've got a vehicle with 100k+ on the odometer, go out and pull the dipstick and tell me you don't smell a bit of gas. IMO, this is hardly cause for alarm.


Ok went out checked both Jeeps. Nope no gas smell.

Get a compression test done

2013 6.2 V8 Camaro SS 30k
98 5.9 V8 ZJ 180k
98 4.0 I6 ZJ 240k
90 5.9 SJ Grand Wagoneer 110k
Candymancan is offline  
post #15 of 24 Old 11-23-2011, 07:19 AM
wsar10
Registered User
2003 WJ 
 
Join Date: Dec 2008
Location: State College, PA
Posts: 2,179
Quote:
Originally Posted by Candymancan View Post
Ok went out checked both Jeeps. Nope no gas smell.

Get a compression test done
My ZJ is at 200k and no gas smell, the WJ @130k no gas smell

QUOTE=billzcat1;wsar10 is right on point on this oil thread - as usual. Anyone reading this would be well-served taking his advice.


-03 WJ laredo 4.0 120k a few minor mods
-93 XJ 5spd, 3" zone lift
wsar10 is offline  
Reply

Tags
gas , oil

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

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.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
Smell of gas around car Breathe ZJ Grand Cherokee Forum 3 08-29-2010 09:00 AM
Ooh, that smell! ZeJokee ZJ Grand Cherokee Forum 3 08-23-2009 09:05 PM
I smell oil cweb ZJ Grand Cherokee Forum 9 04-19-2008 09:39 PM
Gas Smell!! JeepRagan ZJ Grand Cherokee Forum 6 10-03-2007 05:29 PM
Bad Smell wreck76 ZJ Grand Cherokee Forum 6 11-26-2004 04:37 PM

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 On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome