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04-20-2021, 11:05 PM
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#1 |
 Drives: 2017 50th Anniversary SS Join Date: May 2018
Location: Florida
Posts: 83
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Groaning sound when AFM is in use?
Anyone else ever had an issue where there would be a type of groaning sound in the vehicle when going from V8 to V4 and V4 to V8
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04-21-2021, 01:24 AM
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#2 |
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Long hauler
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Can you guess where it's coming from, the engine or rear? Could be AFM valves that are situated directly under the rear seats but the issue with those is usually a rattling noise from the exhaust.
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04-21-2021, 06:44 AM
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#3 |
            
Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017
Location: East Tennessee
Posts: 11,582
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I bet it's coming from the AFM valves. Apply a bit of Drislide using a similar method to the one described here and see if it goes away, it helped with my NPP valves (that are the exact same part).
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2018 Camaro 2SS — G7E MX0 NPP F55 IO6
735 rwhp | 665 rwtq Magnuson TVS 2300 80mm pulley | Kooks 1 7/8" LT headers | JRE smooth idle terminator cam | LT4 FS & injectors | TSP forged pistons & rods JMS PowerMAX | DSX flex fuel kit | Roto-Fab CAI | Soler 95mm LT5 TB | 1LE wheels | 1LE brakes | BMR rear cradle lockout | JRE custom tune 1100 - 1/30/18 | 2000 - 1/31/18 3000 - 2/06/18 TPW 2/26/18 3400 - 2/19/18 | 3800 - 2/26/18 4300 - 2/27/18 | 4B00 - 3/01/18 4200 - 3/05/18 | 4800 - 3/14/18 5000 - 3/16/18 | 6000 - 3/19/18 Last edited by arpad_m; 04-21-2021 at 08:12 PM. |
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