Out of nowhere today, I shifted into third gear and only heard a hissing sound. The tranny is going and my cat. isn't in the best shape, but this sounded insane!

All that would describe the noise is a weird hiss, and it's only while in third gear!

Any input on what this would be?

 

tranny fluid (lack of)

 

tranny fluid?

wouldn't it do it on all gears then?

side note: my mechanic changed the MT fluid within the last 1500 miles or so.

 

anyone bump for other opinion?

the hissing is inconsistent with the gears so it might be my cat (which has been rattling for a while)

 

im going to have to go with tranny fluid as well, just change it and see if theres a difference.

 

if it was fluid it would make a quick grinding noise while engaging the gear...the whining noise is more than likely your input shaft bearing taking a dump on you - time for a new trans

 

my input shaft bearing has been gone for a while (or so i thought) so right now it's most likely demolished.

thanks guys
looks like my suspension work is taking the backseat and my swap is going in earlier than i thought

 

or maybe your throwout bearing.. Go to search and check out input shaft bearing and throwout bearing! good luck

 

yea, i had to my suspension dreams in the trunk cause i also just had to replace my trans for the same reason

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slacks &raquo;</TD></TR><TR><TD CLASS="quote">Out of nowhere today, I shifted into third gear and only heard a hissing sound. The tranny is going and my cat. isn't in the best shape, but this sounded insane!

All that would describe the noise is a weird hiss, and it's only while in third gear!

Any input on what this would be?</TD></TR></TABLE>

Your "cat" is fighting off a "snake" and the snake is hissing in defense. I tell you its a jungle out there!!!

 

tell me honestly what u think a certain gear has to do with your cat.... or input bearing... they do the same thing no matter what gear your in...

 

because the noises are inconsistent
and honestly know nothing about transmissions


but if you have any idea about what is going on, instead of flaming me, then i would appreciate it

 

i'd say it could be a problem with the shifting mechanism inside, when it slides the collar to lock the gear in place it might be too far, basically the problem i'd say lies between the outside parts of the syncros and the dog teeth geers that lock the 3rd gear in place... or with the shift fork..

and its just common sense that its not the cat or the input bearing if it only does it in one gear... since both those type issues would be consistent with engine speed...