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GMC
Suburban
Engine Cooling
Leak
1990 GMC Suburban COOLANT LEAK
1990 GMC SUBURBAN
IBELIEVEN1ME
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Feb 16, 2009 at 11:13 AM
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JACOBANDNICKOLAS
CERTIFIED EXPERT
110,175 POSTS
Hi:
It could be the water pump. Look for the seep hole under the housing. That is where is will most likely leak from. Also, check hoses to make sure none ruptured.
Feb 17, 2009 at 1:40 PM