One of the most often overlooked items on a Subaru or any car for that matter, are the coolant hoses. Often times we don’t know they’re bad until it’s too late.Steam coming from under the hood is the telltale sign along with the temp gauge heading toward the red. Back in the old days it was common to replace all of the coolant hoses every 5 years or 60,000 miles. They just didn’t hold up much longer than that. Now with improved material and technology in the molded and reinforced hoses, we would be overselling you if we replaced them at the same interval. Frankly they last so long, replacement as preventive maintenance has almost become an afterthought. Well, as the years pass and the mileage adds up, the hoses are overlooked but continue to deteriorate from the inside out. When an older hose failed, it would often show signs of seeping, swelling or cracking. Now, with the newer hose, it looks nearly as good as new until right before it blows.
If you have over 120,000 miles on your Subaru it’s probably time to get the hoses changed. There’s a simple test you can do yourself to evaluate the hose condition. When the engine is cold, locate a couple of coolant hoses and give them a good squeeze. If you squeeze them near where they connect to the engine or radiator you’ll probably get the most accurate results. If you feel a “crunching” feeling inside, the hose is becoming brittle and it’s time to budget for replacement. You can check multiple hoses on the car this same way but some are tougher to get to than others. As a rule of thumb, if one is going bad, and the others are the same age, it’s a good idea just to do them all and get it behind you.
Subaru coolant hoses really do last an unusually long time but eventually do need to be replaced.
Make sure you use quality clamps too. Many times the genuine Subaru wire clamps can be reused.
Independent Subaru Expert
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