5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

coolant leak

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Old 08-21-2009, 10:51 PM
  #11  
1988TTOP
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dont put stop leak in the car find the problem and fix it right!!!!!
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Old 08-22-2009, 01:16 AM
  #12  
Dj_Seph
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Stop leak ironically stops nothing.
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Old 08-22-2009, 11:32 AM
  #13  
94mustang94
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well gm makes the these tablets that are vegtable based that are supposed to be pretty good and used by many motor building shops because it helps with bonding different types of metals
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Old 08-22-2009, 01:02 PM
  #14  
TrimDrip
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Barrs Leak makes the tablets too. If you are going to try it, the liquid form would give you a quicker result. You really should find the leak.
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Old 08-22-2009, 02:11 PM
  #15  
94mustang94
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well i think the leak is at the head gasket and it is very minimal and not mixing in the oil it just leaking out of the back of the motor and running down the block. and i do have alum. heads and i don't think the seal took well
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Old 08-22-2009, 02:26 PM
  #16  
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did you use rtv sealant on the intake gasket?
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Old 08-22-2009, 08:17 PM
  #17  
94mustang94
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yes the intake is as dry as anything. no leaks there at all
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Old 08-22-2009, 10:18 PM
  #18  
1988TTOP
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what side of the motor is it comein from
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Old 08-22-2009, 10:34 PM
  #19  
86 5.0L
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rear expansion plug
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Old 08-22-2009, 10:55 PM
  #20  
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it is coming from the driver side. and the head bolts look like they are seeping a little water....expansion plug on what?
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