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!

1999 V70 T5m56 normal rev limiter operation

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

User avatar
abscate
MVS Moderator
Posts: 19180
Joined: Sun Feb 17, 2013 5:54 pm
Year and Model: 99T5 ,99S70,2005V70
Location: NYC, ALBANY NY
Has thanked: 229 times
Been thanked: 759 times
Trinidad & Tobago
abscate

1999 V70 T5m56 normal rev limiter operation

Post by abscate » Tue Nov 12, 2019 9:14 am

In my recent bad OUt of box quality issue (OBQ) spark plug, after diagnosis, I ran out Elizabeth the Volvo onto Route 32 for a high speed /load test

No BMWs were hurt in this test, although the drivers egos were. Scores of women in Miatas followed me home only to look dejected on seeing my lovely bride of 33 years

At 6000 rpm the power started pulsing with about a 3 Hz modulation and a sort of a chirp sound ...drrtp.....drrrp.drrrp.

I think this is normal rev limiting behavior...any comments, June?


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
Clemens
Posts: 1059
Joined: Thu Sep 03, 2015 12:34 pm
Year and Model: 96 855 R + 94 855 T5
Location: Austria
Has thanked: 73 times
Been thanked: 40 times
Austria
Clemens

Re: 1999 V70 T5m56 normal rev limiter operation

Post by Clemens » Tue Nov 12, 2019 1:09 pm

Would it help if I tried this with my M4.3 T5M?
Just wondering because you should have ME7 and ETM and coilpacks.


Summer: 1996 855 R
Winter: 1994 855 T5M
Donor: 1995 854 10V

User avatar
abscate
MVS Moderator
Posts: 19180
Joined: Sun Feb 17, 2013 5:54 pm
Year and Model: 99T5 ,99S70,2005V70
Location: NYC, ALBANY NY
Has thanked: 229 times
Been thanked: 759 times
Trinidad & Tobago
abscate

Re: 1999 V70 T5m56 normal rev limiter operation

Post by abscate » Tue Nov 12, 2019 1:20 pm

I do have ME7 and coil packs. I bet all turbo cars rev limit the same way or close.

It hit right at tach=6000 rpm so that points to a set point of some kind

There is a lot of power in the 4000-6000 band in an HPT, by theway


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