Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Wrangler-JK

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #1  
Old 06-06-2012, 06:04 PM
New Member
My Jeep: 2005 2.4L TJ
 
Join Date: Jun 2012
Location: Augusat, ME
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
MattB5694 is on a distinguished road
Check Engine, check guages, fan on high

I've been all over the Internet looking for an answer to this. I'm hoping someone here has seen or ehard of this before...
My Jeep is a 2005 Wrangler SE with 2.4L4 engine. The Check engine light is on and the following codes are returned:
P0443 Evaporative Emission Control System Purge Control Valve Circuit
P0483 Cooling Fan Rationality Check Malfunction
P0499 Evaporative Emission System Vent Valve Control Circuit High
The CHECK GUAGES light is also on even though all guages read normal, even the coolant temp guage.
The electric radiator cooling fan runs all the time and only on high regarless of coolant temp. It comes on even when the engine is first started and not even warmed up yet.
I have changed the Emission Control System Purge Control Valve and the Coolant Temperature Sending unit without any change.
The engine doesn't seem to overheat at all. The heater throws heat as expected and the upper radiator hose gets as hot as expected once the engine warms up sugesting that coolant flows through the thermostat.
Doea anyone have any ideas what to try next? I'm thinking for a trip to the local Jeep dealership but figured it would be worth a shot here first.
Thanks for looking!
Matt
Augusta, ME
__________________

__________________
Reply With Quote
  #2  
Old 06-06-2012, 06:21 PM
s10eater's Avatar
Member
 
Join Date: Aug 2009
Location: Winnipeg, Manitoba, Canada
Posts: 64
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1850
s10eater is on a distinguished road
Re: Check Engine, check guages, fan on high

I don't know if I'm about to break and forum rules... But here it goes I'm just trying to help a fellow jeeper out.

I would try posting that exact post on jeepforum.com in the tj section. There is a huge wealth of information on that forum and guys who are very knowledgeable about jeeps.

Sorry I couldn't help more, and hopefully the mods let this post ride and give me my spanking via pm.
Good luck.
__________________

__________________
1987 Comanche : ZZ4 350
-355HP
-405TQ
2007 WK Overland
mostly stock
2001 TJ SE. 31"KM2s on cragar D styles
JEEP: If i wanted a hummer i would ask your sister.

"if your down for no bad, then i'm up to no good"
Reply With Quote
  #3  
Old 06-06-2012, 10:20 PM
Frango100's Avatar
Premium Member

My Jeep: 2004 4.7L WJ
 
Join Date: Dec 2009
Location: Brazil
Posts: 4,647
Thanks: 9
Thanked 54 Times in 52 Posts
Rep Power: 525446
Frango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond repute
Re: Check Engine, check guages, fan on high

Im not familiar with this type of jeep, but it seems that all problems are related to the PCM. I would start removing all PCM connectors (first disconnect the negative battery lead), check them for any corrosion or moisture, clean them well with electrical contact cleaner and put it all together again and test.
__________________
Frank

JEEP Grand Cherokee 4.7 Lmtd 2004
HID 8000K in low and fog / Quad Squad member
Monroe Reflex shocks / Pirelli Scorpion ATR 245/65/17 - Transgo reprogramming shiftkit.

VW Beetle 2.0 TSI 2013
My new toy
Reply With Quote
  #4  
Old 06-08-2012, 01:54 AM
2005JGC's Avatar
Senior Member


My Jeep: 2005 4.7L WK
 
Join Date: Nov 2010
Location: Portland, OR
Posts: 2,751
Thanks: 51
Thanked 69 Times in 58 Posts
Rep Power: 1652904
2005JGC has a reputation beyond repute2005JGC has a reputation beyond repute2005JGC has a reputation beyond repute2005JGC has a reputation beyond repute2005JGC has a reputation beyond repute2005JGC has a reputation beyond repute2005JGC has a reputation beyond repute2005JGC has a reputation beyond repute2005JGC has a reputation beyond repute2005JGC has a reputation beyond repute2005JGC has a reputation beyond repute
Re: Check Engine, check guages, fan on high

I dont really see many of these with the 2.4, that said, as Frank said, both of your evap circuit faults are in connector 3 at the pcm, there is no shared circuit but they do both use that connector, make sure the connector is clean and free of moisture and other contaminants.

I havent messed with a cooling fan concern like this before, I know for subaru this code is typically an indication of a head gasket failure, the code sets when the fan is turned on and it doesnt lower the temperature of the coolant... This happens when there is no/low coolant. I would check your coolant level.
__________________
2005 Jeep Grand Cherokee - Gone but not forgotten!

Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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


Similar Threads
Thread Thread Starter Forum Replies Last Post
check engine light? akimball Troubleshooting/Problems 7 06-06-2012 07:31 AM
Check engine help! jsouza111 Troubleshooting/Problems 4 10-24-2011 08:20 PM
Check engine light dubwarren Grand Cherokee - WK2 - 6 04-28-2011 04:09 PM
Check engine light jeepgrand23 Grand Cherokee - WK 3 09-06-2010 03:19 PM
Check Engine Light smack82 Grand Cherokee - WK 1 12-29-2009 03:06 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 02:20 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community