I pulled one of my drive shafts thinking i might have a bad cv boot with all the black grease building up on my firewall (which I wiped down and cleaned up soon after buying the car)

i checked the cv boot and there doesnt seem to be any tears or cracks

could the grease be coming from the shift linkage or the steering rack?
it ends up all over my fire wall and exhaust where it bubbles and burns off

 

My first guess would've been cv

 

where is there grease that would be dripping on to the drive shaft, since it would have to drip onto the drive shaft in order to appear on the firewall

 

It might be a torn cv boot that's slinging the grease.

 

DId you read my first post, i have removed the driveshaft from the vehicle and looked over the cv boot

 

My bad was half asleep lol

 

the only thing I can think of near that location besides the rack is your pcv valve.

 

That amount of grease could be caused by even a pinhole in either axle boot. There is more than one cv...

 

If it is truly grease and not oil, there is nothing I can think of that could possibly fling grease other than an axle.
Steering rack wouldn't fling anything and shift linkage doesn't have grease.

 

my thinking was if it was the rack that it would run or drip down onto the cv and get flung on the the firewall

is it possible that it could be oil to?

 

First place that s power steering rack usually leaks is at the boots. Power steering fluid wouldn't stay flunked up on anything. That is coming from a cv axle. You just need to find out where. Either there is a tiny hole or possibly coming out the side just slightly.

 

The boots don't have to be damaged for grease to get thrown out of them. I've had grease come out the ends of the boots before... usually, the big ends, not where they wrap around the shafts.

 

Is the grease only behind the intake manifold or is it all over the entire firewall?

 

Definately has to be cv axle grease. I have the same issue everytime either the boots on the axle closest to the tranny get loose and fling grease all over everything on each side or the boot gets torn. There is really nothing else that has a tremendous amount of grease unless you haven't changed oil for a long time and you got some clunky oil leaks somewhere

 

im just gonna buy a new halfshaft
and sell my old one

i figure a new shaft will run me 60 and i can sell my old one for 30 and a new boot costs 25 it just seems easier to buy a new one

 

some times the band clamps aren't on as tight as they seem and let grease fling out of the boots.. but you already have the answer to your question of buying new cv axles