leaky vent valve 9" ford

68camaroSS · 10-22-2010, 07:22 AM

I have a 9" ford that I am periodically having to wipe the messy accumulated grease off the front passenger side. It runs down the rear end on onto the 4-link. No visible leak is evident, so it must be coming out of the little flip top vent valve. any one experience this and is there a fix?

SCOTT SST2871 · 10-22-2010, 08:02 AM

I fixed mine by running a piece of rubber hose(after removing the little cap)up about 10",tie strap the hose to something and put a new vent valve in the end of the hose.the gm part # is 15771000 and it costs about $3.00
scott fifield

FED 387 · 10-22-2010, 09:16 AM

Great way to fix it but how much fluid do you have in the rear??? Possiblly overfilled it here??? Ya really do not need much more than a few PINTS not quarts but pints to work satisfactorily---Comp

68camaroSS · 10-22-2010, 01:15 PM

Quote:

Originally Posted by SCOTT SST2871

I fixed mine by running a piece of rubber hose(after removing the little cap)up about 10",tie strap the hose to something and put a new vent valve in the end of the hose.the gm part # is 15771000 and it costs about $3.00
scott fifield

I called my local GM dealer and they have that part # in stock, so I will put it on using a 3/8 hose.
Should the vent valve be mounted facing up or does it matter?
thanks for the help.

SCOTT SST2871 · 10-25-2010, 05:22 PM

I think it should face up so if some fluid gets in the hose it runs back into the differential and not on the track
scott fifield

68camaroSS · 11-01-2010, 02:10 PM

Ran the car a couple of weekends and no fluid leakage.. very nice fix.. thanks,

10-22-2010, 07:22 AM	#1
68camaroSS Junior Member Join Date: Aug 2008 Location: columbia TN Posts: 88 Likes: 0 Liked 0 Times in 0 Posts	leaky vent valve 9" ford I have a 9" ford that I am periodically having to wipe the messy accumulated grease off the front passenger side. It runs down the rear end on onto the 4-link. No visible leak is evident, so it must be coming out of the little flip top vent valve. any one experience this and is there a fix?

10-22-2010, 08:02 AM	#2
SCOTT SST2871 Member Join Date: Oct 2008 Location: PORT ST JOHN FLORIDA Posts: 226 Likes: 0 Liked 0 Times in 0 Posts	Re: leaky vent valve 9" ford I fixed mine by running a piece of rubber hose(after removing the little cap)up about 10",tie strap the hose to something and put a new vent valve in the end of the hose.the gm part # is 15771000 and it costs about $3.00 scott fifield

10-22-2010, 09:16 AM	#3
FED 387 VIP Member Join Date: Jun 2006 Posts: 3,350 Likes: 330 Liked 280 Times in 150 Posts	Re: leaky vent valve 9" ford Great way to fix it but how much fluid do you have in the rear??? Possiblly overfilled it here??? Ya really do not need much more than a few PINTS not quarts but pints to work satisfactorily---Comp

10-25-2010, 05:22 PM	#5
SCOTT SST2871 Member Join Date: Oct 2008 Location: PORT ST JOHN FLORIDA Posts: 226 Likes: 0 Liked 0 Times in 0 Posts	Re: leaky vent valve 9" ford I think it should face up so if some fluid gets in the hose it runs back into the differential and not on the track scott fifield

11-01-2010, 02:10 PM	#6
68camaroSS Junior Member Join Date: Aug 2008 Location: columbia TN Posts: 88 Likes: 0 Liked 0 Times in 0 Posts	Re: leaky vent valve 9" ford Ran the car a couple of weekends and no fluid leakage.. very nice fix.. thanks,