IPD sale XeMODeX - Experts in Volvo Electronics
Did you know? 🤔
Logged in users can get email notification of topic replies Log in or register (free).
Amazon Link Buy your stuff using this and it helps MVS!

1997 V70 loss of power; no acceleration possible.

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

giovannibianco
Posts: 9
Joined: Wed Apr 15, 2015 5:26 am
Year and Model: 850 1994 v70 1998
Location: france
Has thanked: 0
Been thanked: 0
giovannibianco

Re: 1997 V70 loss of power; no acceleration possible.

Post by giovannibianco » Sat Jan 11, 2020 7:02 am

Hello All,

Update to my previous update... plugged the upstream O2 sensor hole with a
bung and re-tested. Now she barely had any power to get outta the driveway and
up the road (moderate slope). So there has to be an issue with the exhaust.

We have a car club at CERN, where I work, about 20 km away. There I have access
to full 4-post lifts etc. Need to drive her there next week. Either:

* I drive with front O2 sensor hole open and limp mode(?)

* or drill a few holes in the front of the cat and re-install the O2 sensor? Avoid limp mode?

* Other?

Cheers, John.

User avatar
RickHaleParker
Posts: 3448
Joined: Mon May 25, 2015 2:30 pm
Year and Model: See Signature below.
Location: Kansas
Has thanked: 3 times
Been thanked: 414 times
United States of America
RickHaleParker

Re: 1997 V70 loss of power; no acceleration possible.

Post by RickHaleParker » Sat Jan 11, 2020 1:29 pm

giovannibianco wrote:
Sat Jan 11, 2020 7:02 am

We have a car club at CERN, where I work, about 20 km away. There I have access
to full 4-post lifts etc. Need to drive her there next week. Either:

* I drive with front O2 sensor hole open and limp mode(?)
Leave the O2 sensor out. Look for a slow route to the destination. Then drive it there like a little old lady from Pasadena.
Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.

Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.

Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0,
Plant Torslanda Sweden.
----------------------------------------------------------------
1997 S90, B6304S, AW30-42, Bosch Motronic 4.4 - Sold

User avatar
abscate
MVS Moderator
Posts: 19746
Joined: Sun Feb 17, 2013 5:54 pm
Year and Model: 99T5 ,99S70,2005V70
Location: NYC, ALBANY NY
Has thanked: 254 times
Been thanked: 809 times
Trinidad & Tobago
abscate

Re: 1997 V70 loss of power; no acceleration possible.

Post by abscate » Sat Jan 11, 2020 1:48 pm

A lot of cats have plugged since you guys started spewing out those Higgs Bosons.
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary

User avatar
RickHaleParker
Posts: 3448
Joined: Mon May 25, 2015 2:30 pm
Year and Model: See Signature below.
Location: Kansas
Has thanked: 3 times
Been thanked: 414 times
United States of America
RickHaleParker

Re: 1997 V70 loss of power; no acceleration possible.

Post by RickHaleParker » Sun Jan 12, 2020 12:13 pm

abscate wrote:
Sat Jan 11, 2020 1:48 pm
A lot of cats have plugged since you guys started spewing out those Higgs Bosons.
Higgs boson particles would not clog up a cat but Dark matter would. If you need proof, cut open a clogged cat and see what you find.
Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.

Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.

Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0,
Plant Torslanda Sweden.
----------------------------------------------------------------
1997 S90, B6304S, AW30-42, Bosch Motronic 4.4 - Sold

User avatar
misha
Posts: 4077
Joined: Sun Dec 07, 2008 4:09 pm
Year and Model: '97 850 2.5 20v
Location: Serbia
Has thanked: 39 times
Been thanked: 102 times
Serbia
misha

Re: 1997 V70 loss of power; no acceleration possible.

Post by misha » Sun Jan 12, 2020 1:29 pm

I have never seen clogged cat on these cars.
Cats with ceramic honeycomb on other brand of cars...sure...but these cars have metal honeycombs.
'97 850 2.5 20v / fully equipped / Motronic 4.4 from the factory / upgraded with S,V,C,XC70 instrument cluster / polar white wagon
'91 Citroen XM 2.0 SI /fully equipped/mandarine red metallic
History of Volvos in the family:
'71 144 S
'73 144 De Luxe
'78 244 DL
'78 244 DL
'79 244 GLE
'85 340 GLS

User avatar
abscate
MVS Moderator
Posts: 19746
Joined: Sun Feb 17, 2013 5:54 pm
Year and Model: 99T5 ,99S70,2005V70
Location: NYC, ALBANY NY
Has thanked: 254 times
Been thanked: 809 times
Trinidad & Tobago
abscate

Re: 1997 V70 loss of power; no acceleration possible.

Post by abscate » Sun Jan 12, 2020 5:19 pm

The first Higgs boson made at CERN got loose and ended up,stuck in a church. The priest told the Boson he had to leave , but s/he laughed and told the Priest....

You can’t have Mass without me.

Tip your waitress.
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary

Post Reply
  • Similar Topics
    Replies
    Views
    Last post