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Unread 05-06-2012, 03:43 PM   #1
mrwigglesby21
Registered User
 
Join Date: Nov 2011
Location: collierville, TN
Posts: 29
SKIM or Electrical Problem

Ok guys, I had a thread going earlier of "engine won't stay running", and got some good advice that I checked out. Here is where I'm at.

5 months ago I dropped the dash, HVAC Sub, Steering Column, removed battery, heater hoses, refrigerant lines. Did all that to replace all the actuators on the HVAC. I have a second vehicle and worked on the HVAC on the side. Not knowing completely what I was doing it took a while to get it fixed and back together. Here we are 5 months later and I now I can't get the Jeep to stay on. The battery and steering column components were disconnected for just over 5 months. I have done:

1. New battery
2. Tried to pull error codes using key trick (won't work)
3. Tried pulling error codes using OBD2 scanner - it says "errror" - key is in on position.
4. Checked fuses and relays.
5. Listened for Fuel Pump - it's working
6. Cleaned IAC valve
7. Disconnected and reconnected battery.
8. Left keys in "on" position for over 30 minutes to pull from the capacitors of ECM/PCM
9. Had locksmith come out and verify that key is programmed to SKIM, it says key programmed. Had to give PIN and everything.

Still won't stay started, even when gas pedal is floored, engine sounds great, just cuts out.

Since I've noticed the truck won't stay running, I've also noticed that the power locks and windows on the passenger side won't work when using from the drivers side. Right power mirror will not move either, but left will. Adjustable Pedals will come towards the driver but not back down to the floor.

Goods news is the blend door and recirc door actuators appear to be working great and no more clicking noise when turning the key on and off.

What the hell is going on? Is it the SKIM? Is there an electrical issue that is causing all of it? Why won't the key trick throw any codes, and why is the OBD2 saying "error"? As for the locksmith, he verified that the key was programmed for the Jeep, but did we still need to reset the SKIM or ECM/PCM for it to work properly?

Please help, limited money and need to get this thing on the road! Really don't want to spend money on tow to the stealership.

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Unread 05-06-2012, 09:18 PM   #2
cuttysark
Registered User
 
Join Date: Mar 2012
Location: Hamilon, ONTARIO
Posts: 284
bad ECM/PCM is my final guess, or an electrical short from the symptoms you are describing from when u did the hvac work... it could be anywhere.. maybe someone with more knowledge of the electrical system could chime in with some diagnostic procedures.

You also say the key trick does absolutely nothing, no 'done' message on the speedo? no flashing check engine light? nothing? are you sure your speedo isnt on TRIP milage? AFAIK it wont show error codes if you are in trip mode (mine doesnt, 04 4.7) I have to be on the total KM's. I replaced the TPS and I tried to check the error code and it wouldnt pop up unless I wasnt in trip.

Last edited by cuttysark; 05-06-2012 at 09:53 PM..
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