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cah7307 08-15-2011 09:48 AM

Starter issue - help appreciated!
I have an 07 Sahara Unlim that is having worsening starter issues. I can hear the solenoid relay click once when trying to start it when the remote start or the ignition but the engine wont turn. Usually I can eventually get it started (for some odd reason pumping the brakes seems to sometimes help but this hasnt proved effective recently). Eventually my battery completely died and when I got it towed to the dealer they said there was no apparently draw, that it was simply a bad cell (of course with a new battery the starter was acting completely fine for them). I was suspicious of the remote start causing a draw, or messing with the anti-theft sys but Jeep is insistent that the remote start is completely fine and they dont want to disconnect it. After about 5 trips to the dealer they finally got it to malfunction and they determined the starter was starter installed. Ran fine for a day =/ Last night I tried for 30 minutes to get it to start, no luck, just a click every time. Dash lights come on, and engine light comes on but they're never able to pull any codes. Got my friend to come try to jump me, no luck even after a 7 min charge. I decided to just disconnect the battery (bye bye codes), but we didnt have the right size wrench so I loosened the cable just enough to just see the light under my hood flicker, tightened it back up, car started right away and ran normal. Its at the dealer now but Im really not interested in paying for new parts bc this seems like some weird computer issue which is way beyond my knowledge. Ive also read about a lockup of the WCM/SKREEM but dont know if people have had success going that route. Any suggestions or information would be really appreciated! Thanks =)


Raziel 08-15-2011 11:09 AM

If it's still doing it even after a new starter (dealer part?). Then it is something else causing it not to start. Weak battery will do it. But you said they didn't find a draw. Do you leave anything in the outlets? That will cause a draw & kill your battery.

Anti-theft device might be activating. Bad grounds could do it. Poor connections. Hell, the starter could still be bad. Could be the key cylinder. Let me look for something, hold on................................................ ........................... ok, here are a few TB:

NUMBER: 08-007-08 REV. A
GROUP: Electrical
DATE: July 04,2008
No Engine Crank Or No Engine Start Due To Electronic Lockup Of The WCM / SKREEM OVERVIEW:
This bulletin involves the replacement of the Wireless Control Module (WCM), and if equipped, the replacement of the Electric Steering Column Lock (ELV). The WCM is also referred to as the Sentry Key Remote Entry Module (SKREEM). MODELS:
2007 - 2008 (DR/DH/D1/DC/DM)Ram Truck (1500/2500/3500/4500/5500) 2007 - 2008 (JK) Wrangler 2007 - 2008 (J1) Sebring (China) 2007 - 2008 (JS) Avenger/Sebring 2007 - 2008 (KA) Nitro 2008 (KK) Liberty/Cherokee 2007 - 2008 (MK) Compass/Patriot 2007 - 2008 (PM) Caliber 2006 - 2008 (PT) Chrysler PT Cruiser NOTE :This bulletin applies to vehicles built on or before May 05, 2008 (MDH 0505XX). SYMPTOM/CONDITION:
The customer will experience a no engine crank AND a no engine start condition. Also, the remote keyless entry (RKE) system will not operate. This condition may be due to an electrostatic discharge (ESD) from the ignition key into the Wireless Control Module (WCM), causing the WCM to electronically lockup. This condition may occur more frequently in dry and/or cold weather conditions where a sufficient electrostatic charge is more easily produced. This condition is corrected by the replacement of the WCM. DIAGNOSIS:
1. With the condition present (i.e. the vehicle in the no crank / no start condition), connect the StarSCAN(R) scan tool to the vehicle. 2. Turn the ignition switch to the "ON position, and power up the StarSCAN(R). 3. If the WCM is electronically locked up, the StarSCAN(R) will display the WCM as being "off bus". 4. If the no crank / no start condition is present, and the WCM is "off bus", then reset the WCM by temporarily removing the IOD fuse (with the key out of the ignition switch), wait for 10 seconds and then reinstall the IOD fuse. 5. With the IOD fuse reset having been performed, verify that the vehicle will now crank, start, and run. 6. If the condition is temporarily corrected by performing the above steps, and if the part number of the WCM is earlier than the part number of the WCM listed in the part reference table in the Service Bulletin Parts Required Section below, then perform the Repair Procedure. PARTS REQUIRED:

NOTE :The part numbers listed in the following part reference table are to be used as A GUIDE to help determine if the WCM, that is currently in the vehicle, may require replacement. If it is determined that the WCM requires replacement, then ALWAYS REFER TO THE PARTS MANUAL to determine the correct WCM for the specific vehicle in question. In some earlier model years, the WCM may rule (supersede) to one of the part numbers listed in the table. ALWAYS REFER TO THE PARTS MANUAL (not the part reference table) to determine the correct part number ruling (supercedence / substitution). MAKE CERTAIN THAT THE CORRECT WCM IS ORDERED THE FIRST TIME FOR THE SPECIFIC VEHICLE IN QUESTION. REPAIR PROCEDURE:
NOTE :If the vehicle (a JS model vehicle in certain International markets) is equipped with an Electric Steering Column Lock (ELV), then the WCM and the ELV must be replaced. Replace the WCM and then the ELV. Next program the WCM and at least one (1) ignition key BEFORE programming the ELV. IMPORTANT: Not following this repair process correctly will cause the new ELV to fail. NOTE :Insert the ignition key into the ignition lock cylinder. This will move the shaft lock module locking bolt to the unlocked position. LEAVE the key in the lock cylinder while the shaft lock module is being removed. 1. If vehicle is equipped with a Steering Shaft Lock Module (JS - Avenger I Stratus - some International Markets), then the Shaft Lock Module will require replacement. From the Service Info tab select: 8 - Electrical > Vehicle Theft Security - Security Information > Module, Shaft Lock > Removal and Installation. NOTE :The shaft lock module cannot be removed from the steering column while the locking bolt is in the locked position without irreversibly damaging the column. Before attempting service, the ignition key must have been inserted into the ignition lock cylinder. Then rotate the steering wheel from side to side. If the steering wheel can be rotated, the locking bolt is in the unlocked position. Leave the key in the ignition lock cylinder until shaft lock module removal has been completed. If the steering wheel cannot be rotated, test and repair the wiring circuits between the module and the ignition switch as required. If no problem is found in these circuits, the module has failed with the locking bolt in the locked position and both the module and the steering column must be replaced with new units. 2. Replace the WCM/SKREEM. Refer to TechCONNECT for detailed service information. From the Service Info tab select: 8 - Electrical > Vehicle Theft Security - Service Information > Module, Sentry Key Remote Entry > Removal and Installation. NOTE :Obtain the vehicle PIN number prior to programming WCM/SKREEM or ELV. NOTE :If during the following steps the PIN number is properly entered but is rejected, then reenter the PIN number again until it is accepted. 3. After both the WCM/SKREEM and the ELV (if equipped) have been replaced, Program the WCM/SKREEM as follows: a. Turn the ignition key to the ON position, (Engine Off) b. Connect the scan tool (StarSCAN(R)) to the data link connector and turn the ignition to the RUN position, (engine off). c. Select "ECU View." d. Scroll down and select "WCM" in the list of modules. e. Select "Misc. Functions." f. Scroll to "WCM Replaced." g. Press "Start". h. Press "Next". i. Select "Show Keyboard". j. Enter the vehicle PIN number. k. Select "Next". l. Verify PIN is correct. m. Select "Next". n. Follow on-screen prompts to complete WCM function programing for Tire Pressure Monitoring (TPM) and so on. 0. Turn the ignition key to the OFF position. Wait 30 seconds. p. Turn the ignition key to the ON position, (Engine Off) q. Select "ECU View". r. Scroll down and select "WCM" in the list of modules. s. Select "Misc. Functions." t. Select "Program Ign. Keys" and follow on-screen prompts. u. Select "Complete". v. Verify ignition key will start vehicle and the Remote Keyless Entry (RKE) functions operate. CAUTION :If the vehicle is equipped with a Shaft Lock Module (used in some International Markets on JS model vehicles), then at least one (1 ignition key must have been programmed to the new WCM BEFORE the new Shaft Lock Module is "married" to the new WCM. 4. Is the vehicle equipped with Steering Shaft Lock Module (ELV)? a. Yes >> Proceed to Step # 5. b. No >>Repair is complete. 5. Program the ELV as follows; a. Select "ECU View". b. Scroll down and select "WCM" in the list of modules. c. Select "Misc. Functions". d. Scroll to "ELV Replaced." e. Press "Start". f. When complete, verify steering shaft lock mechanism is operating. Remove and insert key from the ignition lock cylinder and listen for solenoid "click at lower end of column.

Raziel 08-15-2011 11:09 AM

NUMBER: 08-023-07
GROUP: Electrical
DATE: October 06, 2007
Long Crank Time Due To Possible Contact Of Camshaft Sensor To Camshaft Gear OVERVIEW:
This bulletin involves the replacement of the engine camshaft sensor. MODELS:
2007 (JK) Wrangler NOTE : This bulletin applies to vehicles equipped with a 3.8L engine (sales code EGT). SYMPTOM/CONDITION:
The customer may experience one of the following conditions:
a). Long engine crank time. b). Two engine start attempts prior to engine starting. c). Due to the "TIP Start Feature on automatic transmission equipped vehicles, once the ignition key / switch has been released from the "START position, the starter may stay engaged for up to 10 seconds while the engine attempts to start. The above conditions may be due to the position of the camshaft sensor to the camshaft gear. The sensor spacer gasket may have come loose during engine assembly and caused the camshaft sensor to be adjusted too close or in contact with the camshaft gear.
If the above condition is present perform the Repair Procedure.

1. Disconnect and isolate the negative battery cable from the battery.

2. Disconnect the camshaft sensor electrical connector (Fig. 1). 3. Clean the area around the camshaft sensor and bore. 4. Remove the camshaft sensor mounting bolt.

Raziel 08-15-2011 11:18 AM

2nd one may have nothing to do with you. But, cam/crank sensor could cause the vehicle not to start. But from what it sounds like by you, this doesn't seem to be your case.

The 1st one may be your problem. Sadly, they can't figure out what's wrong with you vehicle at the dealer. You can always bring it back & tell them check it out again & use that bulletin. Maybe then they'll find it. I don't see any reasons why they will charge you again. You can always complain about that if they try to since you already seem to have paid them a few times for the same issue?

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