So Ive had this s4 for a few months now, ive done the timing belt and all that so all maintenance is up to par.

But my issue is, right when i start the car its pretty quick, pulls like it should and so on.. but once it gets warmed up its just slooow. Like I mean it feels like a tank on wheels. Hardly pulls, just accelerates mildly.

Now I know my clutch is starting to go, after going hard for a few runs it does slip for a sec. Could this be the problem causing it?

Also it seems as if my fan turns on too much and it makes the car feel like a tank with a plane on it with wheels. And the fan seems to never turn off once its turned on.

so my question is what can be causing the car to feel so different?

 

sounds like heat soak. are your temps running higher than normal?

 

Do a vacuum test with the car fully warmed up - a torn or leaking vac line may open up once it's hot and cause a leak.

 

Well I did find one of my hoses was off the diverter valve but thats fixed. But the fan keeps running. Whats the best way to go about vacuum testing these cars?

also HUGE thing happened to me last night. I was at a stop light, it turned green i gave the gas maybe 85% WOT till about 5k rpm, then I hear a clunk noise followed by some rattling, pull over asap and while the car is in idle all i can hear is whats sounds like internal grinding metal or something and if given gas the noise gets louder. I mean it sounded baaad. So i drove it low key for about two miles till i got home then I shut it off ran inside to get my cell phone to make a vid to put up but this time i turned it on and the sound was gone.

I really wish I got a video of it because the sound it was making sounded horrible and scary. Im thinking of making its own thread about it but ill see how it goes here.

 

also temps are running fine. Only once did the temp gauge go past the middle marking but only in the slightest bit.

 

Definitely sounds like you loud fan noises were because either the fan was messed up or something was in the fan. Then possible it fell out at your house? Also the loss of power was most definitely that diverter valve hose. Big boost leak