Coolant Outlet on Lower Intake Maniflod May Leak on Nissan Frontier

The coolant outlet on the front of the lower intake manifold may develop a coolant leak.

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Average mileage: 129,407 (61,000–190,000)
Engine affected: 3.3L V6
7 model years affected: 1999, 2000, 2001, 2002, more2003, 2004, 2008
17 people reported this problem
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problem details
2002 Nissan Frontier - 3.3L V6 160,000 mi,
Leaking coolant on underside of throttle body. I thought I had a bad head gasket due to the smell but upon closer inspection, most of the smell was coming from the engine compartment. It is leaking onto the drive side exhaust manifold.
2001 Nissan Frontier - 3.3L V6 190,000 mi,
Had coolant leak numerous times starting back in 2007 around 126,000 miles, again in 2009, 2010 and now currently 2013. I have had the intake manifold gasket sets replaced twice. My water pump, radiator, thermostat and even the radiator cap at least once. I'm sick of smelling coolant for more than 5 years and each time I'm told its something different. Now besides a new water pump needed, leaks may be coming from intake water outlet amd coolant pipes under intake. After repairs this year, I will have spend close to $3000.00 in repairs for coolant leaks (especially gaskets). Parts are cheap, but labors not.
2000 Nissan Frontier - 3.3L V6 118,256 mi,
water in oil
2001 Nissan Frontier - 3.3L V6 136,000 mi,
Not fixed yet
2004 Nissan Frontier - 3.3L V6 135,000 mi,
Water blows out from under ehaust manifold on drivers side. tried fixing with stop leak. no luck