Broken vacuum line?
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JLv70t5
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- Year and Model: 1998 v70t5
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1998 v70 t5. Replaced my boost control valve today and noticed this vacuum line was broken off I have no idea where it's supposed to go. I have an intermittent service light for EVAP. Is this related? Can anyone help me out?
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erikv11
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That one connects to the TCV, to the straight nipple on the end with the two nipples. I'd wholesale review all of the vacuum lines.
EVAP code is probably one of the other, 22 year old vac lines has crumbled or has a pinhole etc. Likely unrelated.
That current open line is allowing unmetered air into the intake past the MAF, so the engine is running lean (very bad) or the ECU is compensating and it is running rich (less bad but still undesirable).
Frankly I would plan to replace all of the vacuum lines. But start with re-plumbing the TCV lines, go from there.
EVAP code is probably one of the other, 22 year old vac lines has crumbled or has a pinhole etc. Likely unrelated.
That current open line is allowing unmetered air into the intake past the MAF, so the engine is running lean (very bad) or the ECU is compensating and it is running rich (less bad but still undesirable).
Frankly I would plan to replace all of the vacuum lines. But start with re-plumbing the TCV lines, go from there.
'95 854 T-5R, Motronic 4.4, 185k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 201k
'07 XC70, black, 205k
'07 XC70, willow green, 223k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 201k
'07 XC70, black, 205k
'07 XC70, willow green, 223k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k
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RickHaleParker
- Posts: 7203
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Take the big air hose off. You will find the other end of the small hose below and near the back of the head.
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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erikv11
- Posts: 11912
- Joined: 25 Jul 2009, 14:03
- Year and Model: 850, V70, S60R, XC70
- Location: Iowa
- Has thanked: 311 times
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You think this goes back to the FPR? I think it's to the TCV ...RickHaleParker wrote: 03 Jun 2020, 20:49 Take the big air hose off. You will find the other end of the small hose below and near the back of the head.
'95 854 T-5R, Motronic 4.4, 185k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 201k
'07 XC70, black, 205k
'07 XC70, willow green, 223k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 201k
'07 XC70, black, 205k
'07 XC70, willow green, 223k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k
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JLv70t5
- Posts: 20
- Joined: 18 May 2020, 11:16
- Year and Model: 1998 v70t5
- Location: Maine
- Has thanked: 11 times
- Been thanked: 1 time
If I'm not mistaken the tcv (turbo control valve) is the same a the bcs (boost control solenoid) wich is the part a just replaced. Definitely not to that. What's the fpr?
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JLv70t5
- Posts: 20
- Joined: 18 May 2020, 11:16
- Year and Model: 1998 v70t5
- Location: Maine
- Has thanked: 11 times
- Been thanked: 1 time
I found this forumerikv11 wrote: 03 Jun 2020, 20:55You think this goes back to the FPR? I think it's to the TCV ...RickHaleParker wrote: 03 Jun 2020, 20:49 Take the big air hose off. You will find the other end of the small hose below and near the back of the head.
viewtopic.php?f=1&p=276263#p276263
This is definitely it. Thanks for the help
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RickHaleParker
- Posts: 7203
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I just took a quick look at my "98 C70 to see where the line is heading.
The other end terminates at a air pipe. Nipple at the metal 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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erikv11
- Posts: 11912
- Joined: 25 Jul 2009, 14:03
- Year and Model: 850, V70, S60R, XC70
- Location: Iowa
- Has thanked: 311 times
- Been thanked: 817 times
FPR it is!
'95 854 T-5R, Motronic 4.4, 185k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 201k
'07 XC70, black, 205k
'07 XC70, willow green, 223k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 201k
'07 XC70, black, 205k
'07 XC70, willow green, 223k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k
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