Please tell me it's not a blown head gasket! - Page 3 - JeepForum.com
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Unread 08-15-2009, 12:16 PM   #31
97DCZJ
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1997 ZJ 
 
Join Date: May 2009
Location: Long Island
Posts: 2,181
Today i cleaned the radiator. When I thought I was cleaning the radiator originally, it was really the AC radiator. I moved the fan shroud, and took a power washer to the back of the radiator. Test drove it, and temp still rose over 210.

I don't know what to do anymore. Anyone think it's a cracked head?

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1997 Grand Cherokee Orvis: V8 5.2L, stock.
(Sold) 1998 Cherokee Sport: 4.0L I6, Stock.
(Sold) 1990 Cherokee: 4.0L I6, 4.5" Lift, 33" BFG's.
(Sold) 1997 Grand Cherokee Limited: V8 5.2L, 2" BB, 31" Dick Cepeks.
(Sold) 1999 Grand Cherokee Laredo: Build Thread; V8 4.7L, Stock.
(Sold) 1996 Grand Cherokee Laredo: Build Thread; V8 5.2L ,3.5" lift, 32" Tires
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Unread 08-15-2009, 09:30 PM   #32
97DCZJ
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1997 ZJ 
 
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So my mechanic told me earlier, it's most likely my fan clutch, and I also have a good 2 inches of mud caked on the bottom of my block still. Spraying down the block and replacing the clutch tomorrow. It makes sense it's the fan clutch because at idle, the fan spins somewhat slow. I can individually see each blade, as opposed to my mechanics ZJ, it spins fast enough to see the radiator.
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1997 Grand Cherokee Orvis: V8 5.2L, stock.
(Sold) 1998 Cherokee Sport: 4.0L I6, Stock.
(Sold) 1990 Cherokee: 4.0L I6, 4.5" Lift, 33" BFG's.
(Sold) 1997 Grand Cherokee Limited: V8 5.2L, 2" BB, 31" Dick Cepeks.
(Sold) 1999 Grand Cherokee Laredo: Build Thread; V8 4.7L, Stock.
(Sold) 1996 Grand Cherokee Laredo: Build Thread; V8 5.2L ,3.5" lift, 32" Tires
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Unread 08-16-2009, 09:31 AM   #33
squashman702
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Location: Allston, MA
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Quote:
Originally Posted by 96DCZJ View Post
So my mechanic told me earlier, it's most likely my fan clutch, and I also have a good 2 inches of mud caked on the bottom of my block still. Spraying down the block and replacing the clutch tomorrow. It makes sense it's the fan clutch because at idle, the fan spins somewhat slow. I can individually see each blade, as opposed to my mechanics ZJ, it spins fast enough to see the radiator.
Taurus/5.9 E-fan time.
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Unread 08-16-2009, 10:09 PM   #34
97DCZJ
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1997 ZJ 
 
Join Date: May 2009
Location: Long Island
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it was the fan clutch. replaced it earlier today, and also got an oil change and she's running great. Ran a little hot today though (a bit over 210) but it was at least 90 degrees out today, so that's understandable. Also drove without the front doors on...lotta fun
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1997 Grand Cherokee Orvis: V8 5.2L, stock.
(Sold) 1998 Cherokee Sport: 4.0L I6, Stock.
(Sold) 1990 Cherokee: 4.0L I6, 4.5" Lift, 33" BFG's.
(Sold) 1997 Grand Cherokee Limited: V8 5.2L, 2" BB, 31" Dick Cepeks.
(Sold) 1999 Grand Cherokee Laredo: Build Thread; V8 4.7L, Stock.
(Sold) 1996 Grand Cherokee Laredo: Build Thread; V8 5.2L ,3.5" lift, 32" Tires
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