Coolant Leak From Plug Behind Timing Cover on Nissan Quest

A coolant leak may develop from a plug on the front of the rear cylinder head, behind the timing cover.

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Average mileage: 116,300 (40,000–200,000)
Engines affected: 3.0L V6, 3.5L V6
6 model years affected: 1995, 1996, 1997, 1998, more2004, 2007
9 people reported this problem
6 people shared problem details
1996 Nissan Quest- 3.0L V675,000
leak behind timng cover but not water pump..... not fixed yet
2004 Nissan Quest- 3.0L V6200,000
Coolant leak behind alternator
2007 Nissan Quest- 3.5L V640,000
Gets hot and the fan are working. Transmission jerks
1995 Nissan Quest- 3.0L V6149,000
My quest has a gas smerll coming in the vents, the first thing in the mprning. It also won^t start. The lights. radio all the rest works, The right side sliding door, slides shits by it self smashed a fingere twice. the magnect latch went through her finger. I have a coollant leak.also..
1998 Nissan Quest- 3.0L V6117,500
engine making noise while driving
1997 Nissan Quest- 3.0L V6
When I drive the nissan for a long distant and when I come to my destination the car makes a sound like the radiator fan just turns on and has to cool off the radiator even when the radiator has coolant in it. There are no leaks in the radiator or plastic container to put the coolant & water.
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