They removed the electric vacuum pump for AE before MY17, so yours gets vacuum from the engine (somehow.) I would think there'd be a fuse for the vacuum solenoid which controls the exhaust valves, but don't recall anyone mentioning that for the later cars. (Though pops & crackles are somewhat separate from the exhaust valve operation.) K309 was the software update that gave some people major issues with loss of pops & crackles, though I haven't heard it mentioned in a few years. My car got K309b, and I never noticed a difference. But another member completely lost the pops and crackles, and got a VAP tune just to get them back.

 

Look inside the tailpipes and see if either valve is closed.

 

No exhaust note before storage. Getting it out this weekend, in prep for dealer appt. I looked down tailpipes for valves. Couldn't see anything, valves are probably too far in on this MY to be able to see.

 

On my 2014 S V8 I can see them.

 

On the V6 the valves are inboard of the back box, so can't be seen internally by looking down the pipes. The V8 valves are after the back box so are visible down the pipes, as others have said.

 

Ok, so got the F out, in dynamic mode. Manual transmission, so AE switch is also on. Some good exhaust resonance, but no pops, crackles, etc. Had it up and a bit past 4000rpm, also downshifts and lifts. Switched off AE and think I could hear the difference (from inside the car), still no crackles/pops. Put AE back on and went home. Parked, took Fob and went inside for a bit. Came out with Spouse to check if he could hear any difference. Started the car, it was still in Dynamic and AE switch on as well. Drove up road, past 3000rpm, good resonance, no crackle/pop. Second trial, Dynamic still on, AE off. Up the road. Spouse noticed less exhaust sound. I'm still going to take the car to the dealer, just to make sure, under warranty, that there aren't any functional issues with the exhaust. In all honesty, if it is all good with the exception of not having the pops & crackles, I'm OK with that. So not sure if the loss of the Rice Krispies is/was due to a software update or not. Will know after Wednesday, this week.

 

I know this is an old post but what year and model was your f type? Did you end up finding out why you lost crackles and pops?

 

HI and thank you for your question. It's a 2017 6 cylinder Premium with manual transmission. I have switches for both the dynamic mode and the active exhaust. I got the car in the fall of 2020 with about 24k miles on it. When I went to test drive it for the first time, all the noise was there at startup and I had to switch it off so I could listen for any untoward noises. When I returned a week later for purchase, the popsNcrackles were much subdued. I get a bit of it after a high shift rev.. 4000, mostly on downshifts. I never did find out exactly why it changed, but my guess is a software update that the selling dealer did on it once I committed to the purchase. Subsequently had JLR dealer check for any exhaust valve issues (while still under warranty) and there were none. I'm OK with less noise, as it is really backfire (??) and unburned gas. With about 40K miles on him now, he runs really well and I get my thrills going up on-ramps and opening him up. I'll leave the Rice Krispies to others, along with burnouts.

 

PLEASE DON'T LAUGH.....

Considered trading my white 2021 First Edition P300 - Loaded MSRP = $80,725 in on a 2024 P450 Firense red.

I WAS SEROIUS ABOUT DOING THIS...

Here's the thread:

HELP - 2021 P300 owner test drove a 2024 450 yesterday - - Jaguar Forums - Jaguar Enthusiasts Forum

Drove the 450 at the dealership.

Loved the torque and the Dynamic suspension.

Loved the sound at idle

Was totally surprised that my lil 2 liter with the Ragazzon exhaust actually sounds better with your foot into it than the P450

The torque on the 450 was awesome, but winding up the P300 or pushing it in "S" mode.......... the power, 2WD fun, Pops, Bamgs and Ragazzon exhaust makes it a pure joy to drive.

Had the P300 at TAIL OF THE DRAGON. (photos below)

I wonder which car would have handled better on that run..

I think JLR is bowing to the wrong team with their corporate decisions.

That 2024 450 should have driven, and sounded better than it did.

BEST !

RWS

 

Take the P450 for a test drive and remove fuse 15.
Report back.

 

I was in D Dynamic at the start, then shifted to "S" mode

There was a change, but very subtle.

To be fair, I didn't take it out on the Interstate, where I assume she would show her true colors.

While the P300 is certainly no Corvette killer, she's a damned surprisingly fun ride.

Let's see where we can get to on my trade before I do a second test drive with fuse #15 out.

BEST !

RWS

 

Maybe I should be looking at an R Dynamic.

But THAT does not make good financial sense in terms of a trade.

 

There is a difference. MY14-MY15 has the best exhaust pure unadulterated rawness with the most pops and bangs. The 16 is sound slightly muted then MY17-MY20 is muted with less pops and bangs. MY21+ most muted with very little pops and bangs.

Example here are videos, the 2014 V6S sounds louder and produces more pops and bangs than a 2024 R

2014 F-Type V6S



2024 F-Type R
[/QUOTE]

 

The post MY17s are only more muted if they've had all the software updates - mine still snarls like a beast when on full chat.

 

Have only the 2016.

Had VAP mute snaps and pops as much as they could (some still happen) to save the cats frankly and given things, the pops get old.

That being said, the exhaust's native noise is miraculous and unfazed by the VAP tune work....if it is muted, so be it, but the 16 is gloriously fun - F1 car sounding from the best F1 (or second best...the v10's were awesome sounding) period to many, the 70's. Am almost afraid to ask how much better a supersprint would be....and my neighbors don't seem to mind my starting it in the morning....they all actually love the car and many have said so..."favorite car in the whole neighborhood, amazing car, will be sad if I ever sell it...etc."

Since you cannot drive at over .8g on public roads too often.....this sort of makes this car to me superior to a porsche....that is just me after some 911's mind you...it is not boring at sane speeds. That matters. It looks better too. And it sounds better.... For me sound is part of the integral of the fun. A key part.

Boy does it sound good.

I do like the cross plane noise of a mustang 350 or ferrari too....but I have the F type and love it just as much. You cannot loose with the early cars (pre face lift) is my opinion. Objectively, the original look is also the total package too....the headlights/front bumper were better and the sound was better. The other minor stuff later was better...the later sport seats are thinner and perhaps lighter and the small things like the side plastic shiny bits were nicely done, but the Ian Callum original design was perhaps perfect (you can upgrade the tech and lights). Part of that was sound engineering. They did a lot of engineering of the sound....and it is clearly evident. That got weakened over time due to EU rules/laws. The new cars are superb and not a mistake mind you...the originals are just a little bit better.

 

At least we don't have to wear earplugs when we drive an F-Type!

 

Putting aside he slight tone variation between V6 and V6 S, this is pretty close to how my MY18 pre-GPF V6 sounds like without Fuse 15.

 

The GPFs dulled the MY19+ (UK) and MY22+ (US) even more, regardless of software updates.

 

Yep I know I discovered the same thing after MY16. Thats why the MY14-MY15 in US is best exhaust.