Ok, long story short:
Got clutch replaced in my 5 speed manual 3 weeks ago. Got the car back, car runs great, I take it to the interstate, go up to 80 mph but can’t put it into 5th gear…turns out they hadn’t adjusted the shifter correctly! So when I tried to put it into 5th gear I ended up putting it in 3rd! Guess that can’t have been too good for the car at that speed…
Anyway, they sort out the alignment shifter, car goes goes to 5th normally, but now there’s a grinding noise when I accelerate in 3rd/4th and 5th gear…
Naturally assumed there was a problem with the clutch (I posted about it on this forum), but no, all good there.
Since then, my symptoms are:
-Less power when I accelerate in pretty much all gears
-rpms go up real high in 1st gear, seems normal in the others
fuel consumption has gotten worse
grinding/ rattling noise (still no mechanic has been able to tell me what it is)
new since last week: loud humming noise coming and going randomly
Everything seems to be pointing towards catalytic converter problem, but I just really want to hear people’s opinion.
Also, how could this suddenly happen after change of clutch…would something like that happen just because of the high engine speed that time I drove it in 3rd (wasn’t very long).
Any help would be much appreciated!