help please 2001 mazda b3000 trans issue


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help please 2001 mazda b3000 trans issue

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Auto Repair Home>> Automotive Repair>> Transmission Problems

etag
New User

May 4, 2011, 8:38 AM

Post #1 of 4 (2159 views)

help please 2001 mazda b3000 trans issue	Sign In

I have a 2001 b3000 with v6 3.0 5 speed manual trans 4x4 the problem is my trans builds pressure and after 20 min or so driving it will send air pressure into my cab from the shifter and sends trans fluide smell into my cab. I replaced the shifter housing cover which is that plate that covers the top of the trans, and has the ruber molded in the center which the Sh!ter goes threw it.I drove it for test then found out fluide was being pushed out under the cover.
So i took it back off and then this time i sealed it with gasket cement. Now it doesnt leak but it builds pressure and the smell will burst into the cab.
I think there should be a pressure valve somewhere on the trans but i cant find it. I then build my owne pressure valve. where the 3 rubber plugs are, added a hose to one of the plugs and ran the line up to enginge copartment. I thought i was all set untill after about 20 min of driving i smelled trans fluide i stoped
the truck and looked under and there was fluide blowing from the tube. So the fluilde traveled from the trans up high on the firewall to the hight of the valve cover of the engine. So how is that a manual trans can build such pressure. i have 139k on the trans. everything is good but this.
any help would great thanks Ernie

zmame
Veteran / Moderator
zmame profile image

May 4, 2011, 3:02 PM

Post #2 of 4 (2138 views)

Re: help please 2001 mazda b3000 trans issue	Sign In

There should be a vent tube for the transmission it's probably plugged .. take off rubber hose and try to blow through.

etag
New User

May 4, 2011, 8:43 PM

Post #3 of 4 (2128 views)

Re: help please 2001 mazda b3000 trans issue	Sign In

Hi there, the transfer case has a vent tube which is fine but the transmission does not have one that i can see maybe im just not seeing it.
i need location if you know where it is. Thanks Ernie

zmame
Veteran / Moderator
zmame profile image

May 5, 2011, 4:39 AM

Post #4 of 4 (2114 views)

Re: help please 2001 mazda b3000 trans issue	Sign In

Do you have a aftermarket shifter? After doing some research I found the shifter assembly acts as the manual transmission vent.. Aftermarket shifters may not allow the tranny to vent properly.

Also make sure its at proper level with proper fluid Calls for MERCON III.

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