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05-22-2024, 02:28 PM
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Senior Member
 
Join Date: Jun 2005
Location: Winona Lake, IN
Posts: 6,376
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Top end cleaner that actually works
Does anyone know of a top end cleaner for GDI engines that actually works?
I bought a 2015 Silverado 1500 a couple of months ago and it's starting to idle a little rough. There are no codes for misfire, so I believe it is just carbon deposits in the intake manifold and valve pockets causing it. I tried Seafoam and have not noticed a difference. It does have 98K on it, so maybe it needs a set of plugs?
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70 C/10 SWB 402/TH400/3.73 "The Needy Beast" 200,000 Mile Club Disc Brake Club Owner installed options: Front Sway Bar Power Steering Power Brakes Cigar Lighter Courtesy Lights Deluxe Side Markers Wiper Delay Sliding Rear Window Power Windows Power Locks Sniper EFI 2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear |
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