2009 grand cherokee starting problem - JeepForum.com
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post #1 of 67 Old 04-16-2012, 06:47 PM Thread Starter
jpm6621
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2009 grand cherokee starting problem

Can i post a video on here? My 2009 GRAND CHEROKEE won't start sometimes. I go and turn it over and it makes like a cha cha cha cha sound for about 7 seconds (best way i can describe it), at about 500 rpms until it shuts off. Then sometimes it will start but it doesn't sound RIGHT when it fires up, to me it sounds like an exhaust leak when it DOES start. Anyone else have this problem?

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post #2 of 67 Old 04-17-2012, 07:36 PM
HEMI35
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Hi man, I had EXACTLY the same problem when I bought my 2007 JGC HEMI.
Took it to service and they changed the battery and the coals of the starting engine (the electrical starting small engine). After that, it started with no problems AT ALL making that HEMI beast starting sound I love.
After many months, I have no issue with the start anymore.

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post #3 of 67 Old 04-18-2012, 06:02 AM Thread Starter
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Im guessing you meant COILS, unless your Jeep runs on coal? And what do u mean electric starting small engine?
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post #4 of 67 Old 04-18-2012, 07:06 AM
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The starter motor

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post #5 of 67 Old 04-18-2012, 05:03 PM
HEMI35
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Yep, the starter motor. And yes, I meant coals (they disassembled the starter motor, and replaced the coals inside). Cheaper than buying a new starting motor.

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post #6 of 67 Old 04-19-2012, 07:08 AM
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Did they replace the starter selenoid? Still no coals....

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post #7 of 67 Old 04-19-2012, 08:35 AM
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I think he means the brushes in the starter . They probably put a rebuild kit in .The main failing point on these starters is the attached solenoid ,which i don't think is replaceable .

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post #8 of 67 Old 04-20-2012, 12:53 PM
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oh, sorry, I called a mechanic friend, he told me "they call them coals, they're are not coals!!!" hahaha, my bad.
He told me that the part you have to replace are the brushes. No rebuild kit, they did it in an electric garage for cars.
My friend sent me this video:
at the beginning, you can hear he says "carbones" (spanish for coals), and he refers to the brushes 0:03. The video is in spanish, though, and I'm not mexican so it's difficult to understand some of the terminology he uses to refers to some parts. The thing is, if you put "electric starter brushes" on ebay you'll get the things to replace, the problem is to find the correct ones for the GC

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post #9 of 67 Old 04-22-2012, 03:49 PM
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I forgot to add that they also changed the battery; previous owner put a wrong battery, and they put the battery for a 07 GC HEMI (I don't know if it is the same battery for a 4.7 or 5.7 engine)

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post #10 of 67 Old 04-22-2012, 04:23 PM
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To my knowledge, it doesn't matter too much what battery it has just as long as it has enough cranking amps to start everything in stock form.

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post #11 of 67 Old 10-23-2012, 02:32 PM Thread Starter
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Still the same starting problem

My jeep wouldn't start one morning at all just clicked so i had a new starter installed and that fixed THAT problem. I took it to a garage for my initial problem and they told me it was the throttle body so i ended up replacing that. That was months ago and now the same starting issue is back. Turn the key, you a get cha cha cha cha cha noise idling at about 400 RPMS until it quits. Does not do this every time tho. When it does tho, the electronic throttle control light is on. To me it almosts sounds like a misfire or something along those lines. I took a short video when it did it so who ever knows what they're talking about can tell me EXACTLY the issue!
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post #12 of 67 Old 10-26-2012, 11:41 AM Thread Starter
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Well mechanics gunna change the Cranshaft Position Sensor today. We"ll see if that fixes the starting problem.
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post #13 of 67 Old 11-01-2012, 09:33 AM Thread Starter
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Well a new Crankshaft Position Sensor did nothing. No codes, computer says everything is normal yet the problem is still there. Brand new starter also.
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post #14 of 67 Old 11-11-2012, 10:19 AM
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Quote:
Originally Posted by jpm6621 View Post
Well a new Crankshaft Position Sensor did nothing. No codes, computer says everything is normal yet the problem is still there. Brand new starter also.
battery...

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post #15 of 67 Old 11-11-2012, 05:10 PM Thread Starter
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I had the battery and alternator tested and they are fine, even though both are Original as far as i know. I bought the Jeep with 32,000 miles, i now have 103,000 miles.
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