Hmmm, that's the second mention of drone. Is it the V6 thats droning? In 7th and 8th, my V8 is completely quiet in the cabin cruising at any reasonable hwy speed, and some unreasonable.

 

With F43 pulled? Could be the vert or V6 is worse in this regard, memory is I’m thinking around 1800RPM in 8th. Going faster helps.

 

I have a V8 convertible without F43. There's basically no audible engine sound in 7th or 8th at highway cruise. 1800 RPM equates to about 90 mph. This thing is too quiet most of the time.

 

The V6 doesn't drone at idle or cruise or WOT, where it drones (just a bit, and only with the exhaust in loud mode) is when you are going up a steepish hill at constant speed with around 1/3 to 1/2 throttle travel being used.

 

Actually got the alignment done yesterday and it seems to fix the parking guide line inaccuracy, car feels more twitchy at low speed might need some time to get used to it. Also found out our car use different camber in the front to off set road camber, might try out an even setup next time around.

Went for a drive today and surprisingly car got stuck in quiet mode again, it also felt sluggish below 4k rpm but that might be in my head... Top end feels usual. Where is the vacuum line located? gonna get it removed once and for all.

 

You can trace the vacuum line from the muffler valves at the muffler.

 

Okay, will report the result later.

 

I'm gonna get new tires mounted on Monday and will ask them to do it, I saw on another thread it is recommended to use a vacuum line plug to block it off, I'm assuming the plug goes into where the line was attached, and you removed the line off the vehicle or secured it without reconnecting? Do you know what size plug is needed, and how many is required?

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i might be over thinking this and my mechanic may know exactly what to do, but I really want to do it in one quick shot and never worry about it again.

 

If you are going to do this, just disconnect the lines going into the valves and plug the end of the hoses. The hoses are well supported, so zip-tying the end of the hoses to something may not even be needed. If you some day want to use the valves again, you might want to cap the vacuum inlets to keep out road schmutz.

 

okay will do