VIDEO! 1996 Volvo 3.0 GS - Cooling Hose Throbbing and Bursting

4winnsskipper

Petty Officer 1st Class
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May 9, 2007
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Re: VIDEO! 1996 Volvo 3.0 GS - Cooling Hose Throbbing and Bursting

I also noticed that on the newer volvo 3.0 engines they have a second bypass that dumps right into the exhaust down pipe...(hose 19 in photo)

i know they could of also changed something else which required this but wonder if this was a change made to help alleviate excess pressure? is there a tech bulletin website out there that may have updates like this?

see image
19026.gif
 

cr2k

Captain
Joined
Mar 19, 2009
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Re: VIDEO! 1996 Volvo 3.0 GS - Cooling Hose Throbbing and Bursting

We had a similar problem this spring and we found that the thermo housing had a restricter in the bypass port. Is was factory but very small like 3/16". It was threaded in so we removed it and had no further problems.
 

4winnsskipper

Petty Officer 1st Class
Joined
May 9, 2007
Messages
204
Re: VIDEO! 1996 Volvo 3.0 GS - Cooling Hose Throbbing and Bursting

We had a similar problem this spring and we found that the thermo housing had a restricter in the bypass port. Is was factory but very small like 3/16". It was threaded in so we removed it and had no further problems.

Im assuming this is in the UPPER part of the thermostat housing correct?
 
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