2004 XC90 t6 exhaust leak
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KevinCro
- Posts: 28
- Joined: 28 Jan 2020, 16:08
- Year and Model: 2004 xc90
- Location: Kentucky
- Has thanked: 7 times
Hey guys, I have an exhaust leak. The previous owner, who shall remain nameless, strikes me as the type to use the "oh well if we get one bolt in it, thats good enough" kind of shade tree mechanic. I have looked around the engine and can't really find any leaks but I haven't torn into it too deeply. My question is, if the previous owner did a head gasket job and re installed the head, are there any places that I should look first? Thanks guys
2004 Volvo XC90 T6 169k miles
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RickHaleParker
- Posts: 7209
- Joined: 25 May 2015, 14:30
- Year and Model: See Signature below.
- Location: Kansas
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If he is that flippant. He may of skipped on replacing the exhaust manifold gasket.
The quickest way to find the leak would be to Smoke Test the exhaust system by injecting smoke up the tail pipe.
The quickest way to find the leak would be to Smoke Test the exhaust system by injecting smoke up the tail pipe.
Active
1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
2017 Ford PIU. 3.5l, Twin Turbo, 365 Hp.
............................
Past
2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. ( Killed by a plastic radiator. )
2004 S60R, B8444S TF80 AWD. Yamaha V8 conversion ( I moved, the project did not )
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0. ( Transmission dead after sitting for a winter )
1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
2017 Ford PIU. 3.5l, Twin Turbo, 365 Hp.
............................
Past
2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. ( Killed by a plastic radiator. )
2004 S60R, B8444S TF80 AWD. Yamaha V8 conversion ( I moved, the project did not )
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0. ( Transmission dead after sitting for a winter )
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RickHaleParker
- Posts: 7209
- Joined: 25 May 2015, 14:30
- Year and Model: See Signature below.
- Location: Kansas
- Has thanked: 8 times
- Been thanked: 980 times
Does the gasket look new?
Torque to bolts to 25 Nm ( 19 Ft-lbs ) .
Active
1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
2017 Ford PIU. 3.5l, Twin Turbo, 365 Hp.
............................
Past
2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. ( Killed by a plastic radiator. )
2004 S60R, B8444S TF80 AWD. Yamaha V8 conversion ( I moved, the project did not )
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0. ( Transmission dead after sitting for a winter )
1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
2017 Ford PIU. 3.5l, Twin Turbo, 365 Hp.
............................
Past
2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. ( Killed by a plastic radiator. )
2004 S60R, B8444S TF80 AWD. Yamaha V8 conversion ( I moved, the project did not )
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0. ( Transmission dead after sitting for a winter )
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SuperHerman
- Posts: 1798
- Joined: 01 Dec 2014, 13:28
- Year and Model: 2004 & 2016 XC90
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Not unheard of bolts loosening after manifold work - whether turbos or head gasket. It is recommended to put new exhaust hardware on for this reason.
If I recall correctly the motor came with studs and nuts, not bolts. The bolts like to fuse to the stud and come out as one - it makes torquing them incorrect. Prior work may have handled them this way.
If I recall correctly the motor came with studs and nuts, not bolts. The bolts like to fuse to the stud and come out as one - it makes torquing them incorrect. Prior work may have handled them this way.
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