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Nissan
Pathfinder
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Pink Coolant in Radiator and Transmission Problems on Nissan Pathfinder

Problem Description and Possible Solution

The 2005-2010 Pathfinder with an automatic transmission may develop an issue which is commonly known as the "strawberry milkshake".

The name is based on the color and consistency of the fluid found in the coolant reservoir, transmission, and radiator.

The radiator on these models has an isolated portion for cooling automatic transmission fluid(ATF) that is pumped in and out by the transmission. This area of the radiator is known to rupture internally, and the following occurs:

  • Transmission overheating warning light
  • Transmission slipping (engine revs high and vehicle moves slowly)
  • Jerking when accelerating
  • Engine overheating
  • ATF and engine coolant mix in the radiator, engine, and transmission

Engine coolant in the transmission can cause severe damage, and if not caught immediately may require replacement or rebuild of the automatic transmission.

To correct the situation, the radiator must be replaced, and the engine cooling system must be flushed thoroughly. Also, the transmission will need to be professionally flushed, inspected, and possibly repaired or replaced.

To prevent this from occurring, proactive replacement of the radiator is necessary and recommended.

Problem Data
RepairPal Verified
Average mileage: 175,000 (175,000–175,000)
6 model years affected: 2005, 2006, 2007, 2008, more2009, 2010
8 people reported this problem
Comments
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The exact same thing happened but it didn't start happening until the recall part started going bad. My car was stalling as I was driving and took to a mechanic and he told me of the transmission/radiator problem. Nissan actually extended the warranty for this problem until January of 2016 and 110,000 miles so they recognize that there is a problem. Class action suit sounds necessary. Contact your Attorney General of your state and request them to inquire about this problem. The dealerships should also look out for their customers.