Is it normal to leak a little coolant after t/b bypass?
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Junior Member
Joined: Jan 2014
Posts: 6
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From: Lewisberry, PA
Car: 1985 IROC-Z
Engine: 305
Transmission: T-5
Is it normal to leak a little coolant after t/b bypass?
Just finished with t/b bypass and put rubber caps on the unused inlet/outlet. Took it for a 3 minute drive and there is a little coolant now on top of motor. Anyone know if this is normal and will stop? Do i need to put hose clamps on the rubber end caps? I am assuming that is where it is coming from because it didn't happen before the bypass. Thanks.
Supreme Member

Joined: Jul 2009
Posts: 2,328
Likes: 9
From: Kitchener, ON
Car: 1988 GTA
Engine: LB9
Transmission: T5
Axle/Gears: 3.45
Re: Is it normal to leak a little coolant after t/b bypass?
No need for any caps at all. It must be just leftover coolant in the TB.
If you want to use the caps for style, Just leave them off for a while until all the water boils out before you put the caps back on.
If you want to use the caps for style, Just leave them off for a while until all the water boils out before you put the caps back on.
Senior Member
iTrader: (10)
Joined: Jan 2009
Posts: 718
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From: Edmonton, Alberta.
Car: 1988 Pontiac Trans Am GTA.
Engine: 385 stroker sbc
Transmission: TKO600
Axle/Gears: Moser 9" 3.70 Wavetrac
Re: Is it normal to leak a little coolant after t/b bypass?
If you have a fluid pump, pump out the coolant. Im sure it is 1-2oz tops
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