Rust on Coolant Connection near Air Intake

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Old 08-02-2015, 07:04 PM
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Rust on Coolant Connection near Air Intake

Some background on my '07 TSX...

85k miles, still runs like a champ. Changed brakes at 75k miles (yes I got that long out of my original brakes ) and all original fluids (coolant/brake/trans), drive belt, etc. I do my own oil changes (Mobil 1 Full Syn, 0W30 twice every year). In other words, I have put very little money in this car since I bought it new in May '07.

This past year I have noticed rust on what looks to be a coolant connector near the air intake (see pics).

Has anybody seen this on their TSX? And should I be concerned?

Thanks in advance!





Old 08-02-2015, 10:19 PM
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Lower fittings/hoses are coolant lines to throttle body and upper line is a vacuum line to throttle body.

Rust looks superficial. Suggest wire brush prep and paint to improve appearance, or spray w/ corrosionX or other oil protectant.

good luck
Old 08-03-2015, 11:05 PM
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Looks like you got some road salt in the engine bay and the exposed metal rusted.
Old 08-06-2015, 12:41 PM
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My coolant lines look like that. It seems superficial. I popped a hose off and it was clean inside.
Old 08-06-2015, 02:34 PM
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OK good to know - thanks all!
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