HELP po300 and po175 - Page 2 - Cherokee SRT8 Forum

Auto Insurance

Go Back   Cherokee SRT8 Forum > WK1 Jeep Grand Cherokee SRT8 Discussion (2006-2010) > WK1 Troubleshooting / Problems Discussion / Dealer Service

WK1 Troubleshooting / Problems Discussion / Dealer Service If you are having some problems with your Jeep Grand Cherokee SRT8 and need assistance in troubleshooting and diagnosing the problem, this is the proper place to discuss it. Were you treated fairly or poorly at a dealer? Warranty issues? Let us know.

CherokeeSRT8.com is the premier Jeep Cherokee Forum on the internet. Registered Users do not see the above ads.
Reply
 
Thread Tools Display Modes
  #11  
Old 12-10-2012, 07:03 PM
DrSheldonCooper's Avatar
DrSheldonCooper DrSheldonCooper is offline
Major Contributing Member
 
Join Date: Nov 2012
Location: Chicago
Posts: 1,267
Thanks: 170
Thanked 243 Times in 177 Posts
Garage
i wouldn't worry about the plugs or coils to start, because if it's a random misfire, it's something that's messing with random cylinders.

i would most definitely check ALL rubber hoses and inspect them for small cracks and what not. when it's cold things will shrink, so those hoses will get small and will leak. then when they get warmed up, a small tiny leak could get covered up just by the hose expanding due to the heat. a vacuum leak will most certainly cause a random misfire.
__________________
Dan
2010 YEEP

Last edited by DrSheldonCooper; 12-10-2012 at 07:30 PM.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #12  
Old 12-10-2012, 07:09 PM
DrSheldonCooper's Avatar
DrSheldonCooper DrSheldonCooper is offline
Major Contributing Member
 
Join Date: Nov 2012
Location: Chicago
Posts: 1,267
Thanks: 170
Thanked 243 Times in 177 Posts
Garage
i'm thinking of a MAF sensor, but these jeeps use a MAP sensor to calculate load n what not.

i'm all over the place tonight. sorry for the wrong info.

Last edited by DrSheldonCooper; 12-10-2012 at 07:31 PM.
Reply With Quote Quick reply to this message
  #13  
Old 12-11-2012, 03:46 AM
svoteam svoteam is offline
Member
 
Join Date: Jul 2011
Location: DA Bronx ny
Posts: 48
Thanks: 4
Thanked 6 Times in 5 Posts
Quote:
Originally Posted by AROD View Post
Do you have an A/F Guage ?

Sounds like you are running lean on cold start up...

For what its worth, p0300 means its a random misfire.. if it was cyl. specific it would end with a 1-6
yeah i have a wideband im running agout 14.5 to 14.8 at idle when this is happening
Reply With Quote Quick reply to this message
  #14  
Old 12-11-2012, 03:47 AM
svoteam svoteam is offline
Member
 
Join Date: Jul 2011
Location: DA Bronx ny
Posts: 48
Thanks: 4
Thanked 6 Times in 5 Posts
Quote:
Originally Posted by Knuckles View Post
Mine did something similar and I got a P0174 and it happened when I installed my 90 mm... It went away after my tuner adjusted the tune.... Have you done any work on the Rig lately? Also our rigs don't have a MAF sensor......
i emailed jersyboy with my log lets see if he sees anything
Reply With Quote Quick reply to this message
  #15  
Old 12-11-2012, 04:22 AM
svoteam svoteam is offline
Member
 
Join Date: Jul 2011
Location: DA Bronx ny
Posts: 48
Thanks: 4
Thanked 6 Times in 5 Posts
Quote:
Originally Posted by DrSheldonCooper View Post
i wouldn't worry about the plugs or coils to start, because if it's a random misfire, it's something that's messing with random cylinders.

i would most definitely check ALL rubber hoses and inspect them for small cracks and what not. when it's cold things will shrink, so those hoses will get small and will leak. then when they get warmed up, a small tiny leak could get covered up just by the hose expanding due to the heat. a vacuum leak will most certainly cause a random misfire.
thanks dan, i will check out my hoses this weekend,
walt
Reply With Quote Quick reply to this message
  #16  
Old 12-11-2012, 04:28 AM
JerseyBoy@Stage6 JerseyBoy@Stage6 is offline
Supporting Vendor
 
Join Date: Dec 2007
Posts: 2,880
Thanks: 147
Thanked 691 Times in 406 Posts
Quote:
Originally Posted by svoteam View Post
i emailed jersyboy with my log lets see if he sees anything
How about you check your email. I sent you a cal to try last night ;-)

J
Reply With Quote Quick reply to this message
  #17  
Old 12-11-2012, 04:32 AM
svoteam svoteam is offline
Member
 
Join Date: Jul 2011
Location: DA Bronx ny
Posts: 48
Thanks: 4
Thanked 6 Times in 5 Posts
Quote:
Originally Posted by JerseyBoy@Stage6 View Post
How about you check your email. I sent you a cal to try last night ;-)

J
lmao thanks j, just did, will try it out and let you know
walt
Reply With Quote Quick reply to this message
  #18  
Old 12-11-2012, 03:58 PM
svoteam svoteam is offline
Member
 
Join Date: Jul 2011
Location: DA Bronx ny
Posts: 48
Thanks: 4
Thanked 6 Times in 5 Posts
ok here we go, just installed a cold weather rev from jerseyboy and all looks good, not that cold today but i had no problems startup and warmed up like it was supposed to,
thanks J
walt
Reply With Quote Quick reply to this message
  #19  
Old 12-11-2012, 04:34 PM
AROD's Avatar
AROD AROD is offline
Major Contributing Member
 
Join Date: Mar 2011
Location: Vancouver B.C.
Posts: 1,142
Thanks: 50
Thanked 95 Times in 82 Posts
Glad to hear it worked out for you! - but keep an eye on the underlying issue. There has to be a reason why ( on cold starts ) you get the CEL.
__________________
| Eibach/Bilstein - 275/315 Proxes II | R1 Premium Cryo S&D w/Hawks | K00KS LT-DMH | BT-Catch | CAI | Pred | DC Custom |
Innocent victim of the "Buy Now" button.
07' Fully Built STi - Rotated GT35R- 545AWHP on pump
08' Sierra Denali - 6" BDF Lift
Reply With Quote Quick reply to this message
  #20  
Old 12-11-2012, 05:46 PM
JerseyBoy@Stage6 JerseyBoy@Stage6 is offline
Supporting Vendor
 
Join Date: Dec 2007
Posts: 2,880
Thanks: 147
Thanked 691 Times in 406 Posts
No issue to worry about. The cold start fuel was just a little lean causing misfire on cold start when the temps dropped. She's good to go now ;-)

J
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Cherokee SRT8 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:
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
Display Modes

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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
PO301/PO300 codes trailblazer ssss WK1 Troubleshooting / Problems Discussion / Dealer Service 17 01-12-2010 02:54 PM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -6. The time now is 04:49 PM.



Powered by vBulletin®. Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.
© AutoGuide