NHTSA — Engine And Engine Cooling: Cooling System Problems


really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
2 / 0
Average Mileage:
31,991 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2004 Mitsubishi Endeavor cooling system problems

cooling system problem

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2004 Mitsubishi Endeavor Owner Comments

problem #6

Oct 032010


  • miles


My vehicle is 2004 Endeavor, problem first noticed early Oct 2010. Driver side floorboard and rear passenger floorboard completely soaked with water. Water is coming underneath floor board from ac due to improper drainage. This is a major heath concern there needs to be recalled. After researching on the internet I found that this is a common problem with the Endeavor and part needed to repair problem is not expensive but labor is so expensive because of difficulty in getting to problem area. This is definitely a design problem and we as consumers should not have to be overcharged for the repair, which according to dealer cost around $1000. This is unrealistic. They present economy is bad enough without being ripped out my Mitsubishi. I needed my car to get to work because this is my only source of transportation. I have no choice but to deal this soggy floor, mold, mildew, bad smell and not to mention health concerns.

- Memphis, TN, USA

problem #5

Sep 012009


  • miles
The condensation from the ac does not drain out of the vehicle properly. It is a "known" design flaw that does not provide a drain 'tube" but the water is supposed to drain out a hole and out through the frame behind the dashboard. The hole can become plugged. The water runs into the vehicle under the carpet an under the floor on the driver side. The carpet can have standing water making the foot wet and slippery on the pedal. Also the water has nowhere to go. The water will then evaporate and recondense on the windshield, obstructing views. I can never completely dry out the water and I am worried that mold is growing in the car. Also the waterlogged floor stinks horribly. I have a young child who complains everyday about the smell, but I worry more about the mold and the other safety issues I described above.

- Madison, WI, USA

problem #4

Jun 202007


  • 62,885 miles
Serious safety issue that will result in slippery floor carpeting, brake, and acceleration pedals due to design flaw. Water from A/C unit entering driver side drivers floor area. Wetting floor panel and carpeting. Possibly a grommet it seems to be a common problem in many Endeavors.

- Jacksonville, FL, USA

problem #3

Apr 042008


  • 65,000 miles


They say its the drain of the auto air con system is clog I have been driving to san antonio tx 3 times already and they have not fixed it yet.they always its ready and its never is.they say they will give me my money back but what about my truck or the miles I've put in it plus gas and all the other stuff like drilling and cutting.please help me out.when im on the road its so dangerous because water is making my shoes slip when I try and put the brake.

- Laredo, TX, USA

problem #2

Apr 042008


  • 64,000 miles
Water is leaking in drivers side due to air con drain I had an accident due to slippery shoes.

- Laredo, TX, USA

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problem #1

Apr 152007

Endeavor 6-cyl

  • Automatic transmission
  • 60 miles
I have a 2004 Mitsubishi Endeavor. A/C works some times in the city. Most of the time after driving on the open highway it blows warm air or not at all. The thermistor assy has been replaced as well as the resistor harness for thermistor assy. Did not correct he problem. Misubishi states (which is false) that the problem I am having was caused by the placement of a fin sensor by an independent garage. What is a fin sensor (never had this replaced) and do you have any suggestions. Thank you, bill

- Ormond Beach, FL, USA

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