Tech Tip: Subaru is Leaking Water from A/C Evaporator Drain Hose

Tech Tip: Subaru is Leaking Water from A/C Evaporator Drain Hose

If you encounter a customer complaint that there is water on the front passenger-side floor, there is the possibility that the evaporator drain hose is obstructed. The evaporator drain hose will need to be checked for obstructions and modified.

Applicable vehicles:
2005 and newer Legacy and ­Outback; 2006 and newer Tribeca

If you encounter a customer complaint that there is water on the front passenger-side floor, there is the possibility that the evaporator drain hose is obstructed. The evaporator drain hose will need to be checked for obstructions and modified.

The evaporator hose was modified in production starting in the middle of October 2008.

Repair Procedure
Evaporator drain hose inspection:

1. Check to make sure the hose is not folded or kinked.

2. Check to make sure the hose is not pinched by the ECM bracket (located on the front passenger-side foot area).

3. Check to make sure there are no dry leaves, ­insects, spider webs, etc. in the hose.

4. Check to make sure the hose is properly seated to the evaporator case.

5. Check to make sure that the grommet in the firewall that the hose runs through is properly seated.
Hose Modification: By cutting the hose to a shorter length, it helps prevent spiders from crawling from the control arm to the hose end.

• Cut off the end of the hose (engine compartment side) to the following specification:
– Legacy/Outback – 10 mm
– Tribeca – 25 mm

Note: For Tribeca models, if an orifice was installed following Service Bulletin #10-76-06, remove the orifice, cut the hose and reinstall the orifice.

Courtesy of Identifix.

You May Also Like

BCA Bearings Unveils 2024 Endless Summer Promotion

The Endless Summer promotion runs from May 1 through June 30, 2024.

NTN, the parent company of BCA Bearings, is proud to announce the launch of BCA’s 2024 Endless Summer promotion. During the promotion, BCA’s warehouse distributor customers can earn BCA-branded, premium merchandise with orders of BCA wheel hub assemblies, bearings and seals.

“We are thrilled to announce the BCA Endless Summer promotion” said Patrick Cronin, Marketing Manager, Automotive Aftermarket. “The Endless Summer theme evokes a relaxed and carefree feeling that we all strive to achieve; the same carefree feeling we want associated with using our premium parts. We are looking forward to summer and another great promotion.”

Nissan Electro Hydraulic Steering

Nissan’s steering system is susceptible to driver-error.

Toyota Regenerative Braking System

The brake system of a hybrid may have multiple components to perform regenerative braking and pedal simulation.

Regenerative Braking Service

Regenerative braking takes the forward motion of the vehicle and turns it into electrical energy.

Toyota Prius Battery Codes P0A7F, P2011 and P0A80

A second generation Toyota Prius is at least 12 years old and batteries may need to be replaced. Here’s what the codes mean.

Other Posts

Don’t Miss The April Digital Edition of ShopOwner

The April issue includes technical and management content and is free to download.

Nissan Vehicle Key Not Detected and Engine Will Not Start

Refer to the service information for complete key system diagnosis and repair information.

ZF Expands SACHS CDC Shock Line for U.S., Canada

The release expands ZF’s line by more than 70% reflecting growing demand for advanced damping technology in the aftermarket.

Philips Announces Xperion 6000 LED Under Hood Work Light

It features a motion detection switch that allows mechanics to turn the light on and off with a wave of their hand.