What's Leaking Here? (pic included)
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RE: What's Leaking Here? (pic included) - 10/4/2007 7:21:34 PM
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lennyblazer
Posts: 1985
Joined: 5/6/2007
From: Appleton, WI / Houghton, MI
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That looks like dexcool colant leaking down the back side of your engine, meaning you have a leaking lower intake manifold gasket. It could also be really bad/weird looking Transmission/transfer case fluid, but more likely it is coolant. Have you noticed any decrease in gas mileage or power? If so, it is most definatley a leaking manifold gasket and is most likely getting coolant into your engine oil, which means you need to replace the gasket asap and then get an oil change. Hope this helps.
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-Lenny
4.3L Auto. 3.73Gears
http://www.cardomain.com/ride/2358267
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RE: What's Leaking Here? (pic included) - 10/4/2007 7:41:11 PM
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swartlkk
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From: Waterloo, NY
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Yeah, I too think that it is coolant. Check your oil ASAP, but typically it'll leak inside or outside, but rarely both unless it is left un-repaired. Check over your heater hoses and all 4 corners of the lower intake manifold (a mirror helps at the back). If you see signs of a coolant leak, plan on replacing the lower intake manifold gaskets sometime very soon.
Also looks like your oil cooler lines are leaking as well.
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Kyle-
2004 Rainier
1970 Chevelle - Resto
1974 K5 Blazer - Resto
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RE: What's Leaking Here? (pic included) - 10/4/2007 7:44:17 PM
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samurai_24
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I haven't noticed a decrease in mileage or power. I just did an oil change, and everything looked normal. I'll check the oil tomorrow. What should I be looking for? Is it hard to replace the intake manifold gasket?
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2000 Blazer LT 4WD 4D 4.3L
2003 Dodge Stratus SE
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RE: What's Leaking Here? (pic included) - 10/4/2007 7:50:26 PM
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swartlkk
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If the oil is milky, then the coolant has made it's way into it. If this is the case, DO NOT run the engine. You can waste the bearings real fast with coolant in the oil.
The intake manifold really isn't too terrible, but it is time consuming and there are a few things that can be frustrating.
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Kyle-
2004 Rainier
1970 Chevelle - Resto
1974 K5 Blazer - Resto
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RE: What's Leaking Here? (pic included) - 10/4/2007 7:53:01 PM
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samurai_24
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So is it something a non car guy could do over a weekend you think? I've got a Haynes manual somewhere....
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2000 Blazer LT 4WD 4D 4.3L
2003 Dodge Stratus SE
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RE: What's Leaking Here? (pic included) - 10/4/2007 7:58:33 PM
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swartlkk
Posts: 14308
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From: Waterloo, NY
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There actually is a very good how-to online. Here ya go - GM 4.3L Intake Gasket Replacement - D-Tips.com
The biggest pain about the whole thing was the bolts that must be loosened or removed to get the driver's side accessory bracket backed off enough to get the intake out. Then there is the difficulty with removing the fuel lines as well as the distributor removal and reinstallation...
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Kyle-
2004 Rainier
1970 Chevelle - Resto
1974 K5 Blazer - Resto
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RE: What's Leaking Here? (pic included) - 10/5/2007 8:30:19 AM
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samurai_24
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Thanks for the tutorial link. Well, no milk shake on the dipstick. Still clean oil. I'll have to do a closer inspection next week. I'll post my results.
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2000 Blazer LT 4WD 4D 4.3L
2003 Dodge Stratus SE
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RE: What's Leaking Here? (pic included) - 10/5/2007 9:27:35 AM
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bitbandit
Posts: 102
Joined: 9/16/2007
From: Brigham City, UT
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if you change out the intake gasket make sure you get the valve covers on the right sides. i didnt added some time to my repair time : (
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RE: What's Leaking Here? (pic included) - 10/5/2007 9:32:16 AM
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swartlkk
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Unless you want to replace the valve cover gaskets at the same time, there is really no reason to pull the valve covers off.
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Kyle-
2004 Rainier
1970 Chevelle - Resto
1974 K5 Blazer - Resto
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RE: What's Leaking Here? (pic included) - 10/5/2007 9:39:38 AM
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samurai_24
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Is there a reason for changing the valve cover gasket?
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2000 Blazer LT 4WD 4D 4.3L
2003 Dodge Stratus SE
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RE: What's Leaking Here? (pic included) - 10/5/2007 9:54:48 AM
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swartlkk
Posts: 14308
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Not unless it is leaking...
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Kyle-
2004 Rainier
1970 Chevelle - Resto
1974 K5 Blazer - Resto
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RE: What's Leaking Here? (pic included) - 10/5/2007 11:42:03 AM
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bitbandit
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From: Brigham City, UT
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i took the valve covers off so i could clean the top of the heads when i took my intake manifold off. i had coolant in my oil due to a leaking intake manifold gasket.
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RE: What's Leaking Here? (pic included) - 10/5/2007 11:46:37 AM
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swartlkk
Posts: 14308
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From: Waterloo, NY
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Ah gotcha. That's not the case here, but good info!
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Kyle-
2004 Rainier
1970 Chevelle - Resto
1974 K5 Blazer - Resto
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RE: What's Leaking Here? (pic included) - 10/8/2007 10:26:11 AM
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samurai_24
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Another dumb question.... I was checking new gaskets from Autozone, and they have an upper and lower. Is that tutorial for the upper or lower? Sorry, I'm a little confused about it.
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2000 Blazer LT 4WD 4D 4.3L
2003 Dodge Stratus SE
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RE: What's Leaking Here? (pic included) - 10/8/2007 11:11:20 AM
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swartlkk
Posts: 14308
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From: Waterloo, NY
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The tutorial will be for the lower intake. The upper is the plastic piece.
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Kyle-
2004 Rainier
1970 Chevelle - Resto
1974 K5 Blazer - Resto
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RE: What's Leaking Here? (pic included) - 10/8/2007 11:31:20 AM
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samurai_24
Posts: 50
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Question.... where can I get a "fan clutch wrench" or "pulley holder". Can this be done without specialty tools like that?
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2000 Blazer LT 4WD 4D 4.3L
2003 Dodge Stratus SE
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