And two rubber diaphragms (in compressor bypass valve and wastegate actuator). And pretty much can guarantee, cast iron part of turbo has cracks. I've seen old 3 turbos (around 170-220k), all had cracks.erikv11 wrote: Thu Oct 03, 2024 7:49 pm Issues with the turbo itself are extraordinarily rare. Main things are (1) use good oil see vtl's post and (2) be sure to keep on top of PCV maintenance and (3) be prepared to replace the large diameter rubber intercooler hoses about 180k miles when the hoses start turning to mush. Oh and there are several extra vacuum lines, be on the lookout for older, failing, decayed rubber vacuum lines.
2007 XC70: What should I know about a turbo-ed engine..?
-
vtl
- Posts: 4936
- Joined: Thu Aug 16, 2012 7:35 pm
- Year and Model: 2005 XC70
- Location: Boston
- Has thanked: 130 times
- Been thanked: 686 times
-
erikv11
- Posts: 11912
- Joined: Sat Jul 25, 2009 8:03 pm
- Year and Model: 850, V70, S60R, XC70
- Location: Iowa
- Has thanked: 311 times
- Been thanked: 817 times
Good point, I remember the days most P80 cars had leaky CBV diaphragms, I suppose we are getting there for the P2 cars now, too.
'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
-
br0dy519
- Posts: 798
- Joined: Wed Dec 18, 2019 12:46 am
- Year and Model: 2004 XC70
- Location: Windsor, ON
- Has thanked: 132 times
- Been thanked: 126 times
Any info post on the rubber diaphragms? The XC70 has had a vacuum leak for 3 years and it sounds like somewhere near the turbo.
04s60 2.4
04xc70 2.5t
04xc70 2.5t
prwood wrote:I wish I had a permanent car repair area that was covered, had a level surface, lighting and fans, a workbench, and tool cabinets. You know,like a garage. Much of my time during the job is spent hauling things up and down the stairs to the basement or in and out of the storage shed, or running back downstairs when I realize I need something else,or taking a break from standing out in the sun,or using flashlights or work lamps when it gets dark.
-
vtl
- Posts: 4936
- Joined: Thu Aug 16, 2012 7:35 pm
- Year and Model: 2005 XC70
- Location: Boston
- Has thanked: 130 times
- Been thanked: 686 times
Pull the hoses from TCV and suck/blow air with your mouth, you'll find which one is torn.br0dy519 wrote: Fri Oct 04, 2024 1:45 am Any info post on the rubber diaphragms? The XC70 has had a vacuum leak for 3 years and it sounds like somewhere near the turbo.
-
br0dy519
- Posts: 798
- Joined: Wed Dec 18, 2019 12:46 am
- Year and Model: 2004 XC70
- Location: Windsor, ON
- Has thanked: 132 times
- Been thanked: 126 times
Oh I thought meant some kind of internal seal. You meant the yellow/blue/white tcv hoses
04s60 2.4
04xc70 2.5t
04xc70 2.5t
prwood wrote:I wish I had a permanent car repair area that was covered, had a level surface, lighting and fans, a workbench, and tool cabinets. You know,like a garage. Much of my time during the job is spent hauling things up and down the stairs to the basement or in and out of the storage shed, or running back downstairs when I realize I need something else,or taking a break from standing out in the sun,or using flashlights or work lamps when it gets dark.
-
abscate
- MVS Moderator
- Posts: 36149
- Joined: Mon Feb 18, 2013 12:54 am
- Year and Model: 99: V70s S70s,05 V70
- Location: Port Jefferson Long Island NY
- Has thanked: 1610 times
- Been thanked: 4068 times
Two turbos, two NAs.
Very little maintenance difference. 5k oil changes, synthetic Castrol
The T5 has the highway boost
The S70 LPT has it all off the line.
The 2 NAs sneer at the turbos as they pass them at the fuel pump, getting > 30 mpg
I can just get to 29 mpg on the T5 if I keep the speed at 55 and no boost
Very little maintenance difference. 5k oil changes, synthetic Castrol
The T5 has the highway boost
The S70 LPT has it all off the line.
The 2 NAs sneer at the turbos as they pass them at the fuel pump, getting > 30 mpg
I can just get to 29 mpg on the T5 if I keep the speed at 55 and no boost
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
Link to Maintenance record thread
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
Link to Maintenance record thread
-
vtl
- Posts: 4936
- Joined: Thu Aug 16, 2012 7:35 pm
- Year and Model: 2005 XC70
- Location: Boston
- Has thanked: 130 times
- Been thanked: 686 times
I get 14 MPG in summer. Healthy 1 MPG more than in a pickup truck.abscate wrote: Fri Oct 04, 2024 9:32 am Two turbos, two NAs.
Very little maintenance difference. 5k oil changes, synthetic Castrol
The T5 has the highway boost
The S70 LPT has it all off the line.
The 2 NAs sneer at the turbos as they pass them at the fuel pump, getting > 30 mpg
I can just get to 29 mpg on the T5 if I keep the speed at 55 and no boost
Who is online
Users browsing this forum: Baidu [Spider], DuckDuckGo [Bot] and 8 guests