Congrats on the jeep, I would recommend going to get a custom tune from a reputable tuner using HPTuners over the diablo. The canned tunes from diablo only adjust WOT fueling and spark for the most part, you can change idle and fan settings but that won't affect the chugging. You could always try just reuploading the 91 oct tune without 5046 posts · Joined 2007. #2 · Oct 26, 2020. Why not rebuild the 6.1? You can rebuild it better than a stock 6.4. You'd need to solve for the intake manifold (you could re-use the 6.1), get the cam phaser lockout, tune shouldn't be that hard, and don't recall the front cover and accessories. HA! I was also told it will be there forever, and the best I can do is use some brake fluid and put it on a rubber piece in there, hopefully that would allow it to stretch more and stop the noise. Who knows yet. I am still working on the solution! 2013 GC SRT8 - Vapor Edition. A growling/grinding/low frequency whine sound is heard when accelerating with moderate. to high throttle between 45 and 80 kph (30 and 50 mph). This sound is due to a resonance in the driveline when the transfer case clutch is activated. with Electronic Stability Program (ESP) in the full on position. The sound is more. 5147 posts · Joined 2015. #1 · Sep 24, 2015. Hey guys. My transmission has been revving up during 1st-2nd gear shift when it’s cold. Dealer told me there might be a transmission update. Turns out there were two for mine. I asked him if they just automatically update the transmission or do I have to ask. He told me it’s not automatically done. I'll post the outcome for all to see. Jim, I'll give you a shout mid morning sometime. '07 Jeep SRT8 - BWoody CAI, BWoody sway bar links, B&G Stage II tune, Borla "S" exhaust, GSM phenolic spacers, R1 cross drilled and slotted rotors, Satisfied GS6 pads, Vreds 275/315's, 20% tint, Eibachs and completely "Murdered!" Save. 79twin · #49 · Feb 13, 2020. joewirth said: I bought my 2014 Jeep SRT new off the lot and have only used launch control 4 or 5 times, as to say I have not driven this rig hard. Over the winter, I began to notice a "clunk clunk" from the rear, while accelerating from a complete stop. The noise became worse as the weather got warmer. SOLD '07 Silver Jeep SRT8, Diablo,180 t-stat, CAI, Magnaflow Muffler,end-links,Catch Can, led interior kit, rear fog harness. Carbon-fiber interior, De-badged, 3 TVs with Custom SRT8 Box ,Nitto 420's Carbon-fiber interior, De-badged, 3 TVs with Custom SRT8 Box ,Nitto 420's Some background details: It's a 2009 grand cherokee laredo that came factory with the boston acoustics premium audio. I am using an RER head unit that I was told came out of a 2008 Jeep GC SRT8. The kicker speakers were all installed and play from every speaker. I installed the kicker amp that came from what I was told a 2010 Jeep GC SRT8. 157 posts · Joined 2017. #9 · Jun 22, 2019. bump, still chasing the problem. I'll be bringing it to the shop next week again. So far I'm thinking the pinion pre-load is bad, spider gears are worn, or ring and pinion are worn/pitted. I've also thought the U-joints are bad, or the rear ds is going.. QzuQymM. Welcome to Register a free account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox! Log in Register