I have seafoamed all my cars via the vacuum line. Either no difference on pretty clean motors or some dirty ones I've done it had helped noticeably. pore 1/3 of a can in the vacuum line going into your brake booster. follow instructions on the can.
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3rd alero- 02 GX 2.2 5sp coupe. drove for 3 years 55,000 miles. Sold for a kids first car, and missed
01 Intrigue GX
2016 Chevy SS, Jet Black
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