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Old 03-28-2012, 08:40 AM   #1
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Blaze went for a ride last night

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I was out running around and I hopped back in and pushed the clutch to start it and the clutch went straight to the floor, no resistance. I looked under it and only saw a couple spots on pavement, could have been anything, and one drip from directly under clutch housing. Called AAA and had it towed to the dealer, when he pulled it up onto the truck he was impressed with my bumper, made it easy for him to get it on the truck. Any way as it was sitting on the truck the fluid started running out and onto the truck bed.
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From what I understand the hydraulic clutch system is a sealed unit and will need to be completely replaced. If that is in fact the problem the warranty should cover it (crossing fingers).

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2010 Sahara, Red, rough country winch & stubby, Body Armor rock sliders, stiff spring mod, RC 2.5" series II lift kit, 33X12.5 Duratracs on 15" MB72s.
2007 Grand Cherokee, Red Rock Crystal Pearl, 5.7L HEMI
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Old 03-28-2012, 08:47 AM   #2
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Hopefully it's just the seal on the clutch master cylinder... same exact thing happened to me when I still drove a car.

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Old 03-28-2012, 08:50 AM   #3
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Quote:
Originally Posted by mattdenney07 View Post
Hopefully it's just the seal on the clutch master cylinder... same exact thing happened to me when I still drove a car.
Even if it is just that it's part of the sealed system so it all gets replaced. gonna call in a few hours to see what's what.
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Old 03-28-2012, 10:00 AM   #4
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good luck! if your 3yr 36k hasn't passed it should be under warranty if I am not mistaken?
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Old 03-28-2012, 10:42 AM   #5
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yeah, 2010 with 10k on it.
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2007 Grand Cherokee, Red Rock Crystal Pearl, 5.7L HEMI
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Old 03-28-2012, 10:49 AM   #6
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Looks like your slave cylinder is done! Easy fix as they are external and part is about $129.00. Takes about 1hr to replace. But warranty will cover being so new!
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Old 03-28-2012, 11:07 AM   #7
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So are they not a sealed system like the owners manual says? just curious for future reference since warranty would cover that.
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2007 Grand Cherokee, Red Rock Crystal Pearl, 5.7L HEMI
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Old 03-28-2012, 11:22 AM   #8
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OK did a little research now more confused.
Owners manual says it's a sealed system,
pg 480: Hydraulic Clutch Fluid – Manual Transmission
The clutch hydraulic system is a sealed maintenance-free
system. In the event of leakage or other malfunction, the
system must be replaced.

if that's the case why can I buy a master or slave cylinder separately here?
Controls,Hydraulic Clutch - CYLINDER, Clutch Slave
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2007 Grand Cherokee, Red Rock Crystal Pearl, 5.7L HEMI
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Old 03-28-2012, 11:23 AM   #9
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Quote:
Originally Posted by phottomatt View Post
So are they not a sealed system like the owners manual says? just curious for future reference since warranty would cover that.
yes the clutch system is sealed (note the clutch and brakes use the same fluid reservoir and uses DOT 3 fluid). What happened to your clutch system to fail was either the slave cylinder cracked or a seal/hose cracked to allow air into the system now creating an open system and allow brake fluid to leak and cause the clutch to fail.

If you slave cylinder fails or you need to replace a faulty seal or hose that is causing brake fluid leaks from the clutch system, it is simple just replace the failed item, add brake fluid to your brake fluid resevoir.

There is a valve on the slave cylinder that can be turned by hand to bleed the clutch. Once installed, just have someone hold the clutch pedal to the floor, open the valve to release the air, close the valve, and then pump the clutch around 25 times. You may need to repeat this a few times over the next few days to get all the air out.
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Old 03-28-2012, 11:26 AM   #10
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You're lucky it's not a Chevrolet or a Ford. They both use the same manual transmission (Tremec) and the slave cylinder is an oddball thing inside the transmission concentric to the transmission front shaft. You've got to remove the transmission to replace the slave cylinder.

I hate useless stupid stuff like that!
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Old 03-28-2012, 12:51 PM   #11
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Quote:
Originally Posted by Revyjku08

yes the clutch system is sealed (note the clutch and brakes use the same fluid reservoir and uses DOT 3 fluid). What happened to your clutch system to fail was either the slave cylinder cracked or a seal/hose cracked to allow air into the system now creating an open system and allow brake fluid to leak and cause the clutch to fail.

If you slave cylinder fails or you need to replace a faulty seal or hose that is causing brake fluid leaks from the clutch system, it is simple just replace the failed item, add brake fluid to your brake fluid resevoir.

There is a valve on the slave cylinder that can be turned by hand to bleed the clutch. Once installed, just have someone hold the clutch pedal to the floor, open the valve to release the air, close the valve, and then pump the clutch around 25 times. You may need to repeat this a few times over the next few days to get all the air out.
This is good to know in case I need to do it in the future. Wonder why the manual says that? Anyway the dealership called it is in fact the slave cylinder, part comes in tomorrow, should be covered under warranty.
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Old 03-29-2012, 02:01 PM   #12
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Well its fixed and was covered under warranty.
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2010 Sahara, Red, rough country winch & stubby, Body Armor rock sliders, stiff spring mod, RC 2.5" series II lift kit, 33X12.5 Duratracs on 15" MB72s.
2007 Grand Cherokee, Red Rock Crystal Pearl, 5.7L HEMI
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Old 03-29-2012, 09:52 PM   #13
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Well its fixed and was covered under warranty.
Sweet!

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