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In colder temps, car chugs
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Montana406
New User
Sep 11, 2018, 6:12 AM
Post #1 of 2
(1273 views)
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In colder temps, car chugs
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2008 Subaru Legacy 3.0 R (H6 engine) full synthetic. I live in Montana, so it's cold here a lot, and I'm a woman, so I only know about knitting and makeup (jk). When temps start to hit in the lower 50's and below, the car starts chugging badly when I am in Drive. It's a rhythmic chugging, slow and steady. No noises. No knocking. Timing belt sounds fine. No weird noises under hood when examining. Use full synthetic oil and premium fuel, as owners manual suggests. Current on all shots, good with other cars, just the chugging issue. Any ideas? I allow the car to warm up only when the temps are around 40-ish and below. I noticed yesterday, however, the car chugged when it was around 75 degrees with no warm-up. Recently replaced computer chip under floorboard which was causing issues with cylinder 6. No check engine lights, no warning lights. Thanks!
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