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Old 06-26-2010, 07:09 AM   #1
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07 Sahara Starting Issue

Hello all I hope someone can help as the dealer cannot.I bought a 2007 Sahara in May and have not driven it more than 100 miles I keep bringing it back and getting a rent a car.Here is the Issue...When you go and start the car all you get is a single click and no cranking,if you keep shutting it off and turning it on you can sometimes get it to start no problem, other times it starts up every time.The last time it did not start for the salesman on the 2nd try then started 15 times after that.Here is what they have changed up to know The starter,the wireless module that picks the signal up from the key,a couple of wiring harnesses,and the TICM (? correct spelling) something like total integrated control module.None of it has worked they currently still have the jeep and I have a rental (which they are paying for).Has anyone experienced this that maybe I can point theese mechanics in the right direction.

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Old 06-26-2010, 08:21 AM   #2
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If this is still warranty repair attempts I believe it is 3 shots at the same problem before you can push the "lemon law" and Chrysler will have to buy it back. I had a friend get chrysler buy their Cherokee back for a leak, but they also went had to go through an attourney due to the dealer run-a-round

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Old 06-26-2010, 12:18 PM   #3
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This is a common issue with JK's. I call it the "random no start club" and I'm not only the president, I'm also a member

I bet you have an automatic...the issue is cause by the sensor in the transmission that tells the computer you're in park. If you turn the key and it just clicks, I move my shifter to No Gear and it starts flawlessly.

You can also jiggle the shifter while in Park to engage the sensor...or get a new sensor.

I'm out of warranty, so I live with it. It only does it once or twice a month. I've never seen a manual with this issue yet, but if one did show up, I bet it's the sensor that relays the message to the PCM that the clutch is engaged.
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Old 06-26-2010, 12:47 PM   #4
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Just for grins !

If you got two FOB (keys) with your JK and it acts exactly the same with both, note all said in previous posts

If you only got one--sometimes even though the battery in the FOB doesn't NEED replacement, the voltage has dropped enough to fail the ign sensor ckt--new battery--or--

The ign cylinder in the steering column doesn't allow you to turn the key FULLY clockwise to complete the ckt, when everything else is A OK !!

Good luck

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Old 06-27-2010, 07:17 PM   #5
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The Lemon Law will not be an issue as they are not even going to start my 3 day (return for a full refund) or the next 30 days return for anything on the lot @ equal or lesser value as I have not even had the car in my posession for more than a day the 1st day was 4 hrs the second day was 5 hours and the third time I never even picked it up as I called the salesman and asked him to go start it a bunch of times and it did not start for him on attempt 2 and the following 6 times as well then started up everytime after that.I went up there on Sat to talk to them but the mechanic was not there and what the salesman said the mechanic said and he showed him with a voltmeter (not sure where he was measuring) but he loses a ground every so often.

The answer to the above questions Yes it is a Automatic and Yes it does the same for both keys.I know I saw them checking something under the hood and checking that wireless module or something to see if it was picking up the signal. I will mention the sensor in the Transmission to the Mechanic tomorrow.Thanks and I so love the Jeep and want to enjoy it.At least I am chewing up miles on a free rent a truck tho
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Old 06-27-2010, 10:49 PM   #6
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an auto...i knew it. i promise you it's that sensor. i don't remember what it's called, but just tell them its the sensor that tells the jeep its in park. it's covered under warranty, so no worries.

mine just did this today
lemon law isn't needed...this is more of a TSB issue. they'll replace it and you'll be a happy jeeper again, till the next thing goes wrong

jeeps...ya gotta love em'. they require above average TLC
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Old 06-29-2010, 07:36 AM   #7
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Thanks Ground Hawg and coincidently enough they called me Monday morning telling me they found it and it was the transmission sensor.Hopefully I will be getting it very soon and enjoy my Jeep.
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Old 06-29-2010, 07:51 AM   #8
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sweet. i have wondered about that. mine has done it a few times, nothing to worry about, ends up cranking on the 2-4 try at it. but its good to know what the problem is if it get worse!
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Old 06-29-2010, 08:19 AM   #9
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Quote:
Originally Posted by JeepWrangler View Post
Thanks Ground Hawg and coincidently enough they called me Monday morning telling me they found it and it was the transmission sensor.Hopefully I will be getting it very soon and enjoy my Jeep.
you're welcome. that's why why we are all here

I'm glad they found it though. I've heard stories of folks fighting with techs about stuff like this. the dealership wants to do a flush or replace half the transmission, or whatever else they can come up with.

glad everything worked out for you.

I wouldn't really worry about it general. I've never seen or heard of total failure to the point the jeep won't start. I just pop mine in No Gear when that crap starts. it's more of an annoyance than anything else. mine doesn't do it that much. maybe once or twice a month at most.

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