IPD sale XeMODeX - Experts in Volvo Electronics Volvo modules repair and programming
Please use the MVS Amazon link when you buy anything at all! It helps this site. Thanks very much!

Get email notification of topic replies. Log in or register (free). Amazon Link Buy anything with this and it helps MVS!

1998 Volvo s70 t5m

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

Sniperboy80123
Posts: 12
Joined: Wed Aug 22, 2018 6:36 pm
Year and Model: 1998 Volvo s70 t5m
Location: Los Angeles

1998 Volvo s70 t5m

Post by Sniperboy80123 »

My 1998 Volvo s70 t5m has an intermittent spark problem I have changed everything from the coil to the ignition switch but when it starts it runs fine just takes a few trys and its not normal plz help problem not solved check fuel PSI and it ok there is no spark and when there is it fires up.
Ozark Lee
MVS Moderator
Posts: 14798
Joined: Thu Sep 07, 2006 8:24 am
Year and Model: Many Volvos
Location: USA Midwest
Has thanked: 4 times
Been thanked: 56 times

Re: 1998 Volvo s70 t5m

Post by Ozark Lee »

Have you scanned for codes? There are some codes that will set even when the CEL isn't lit and I think weak or intermittent signals from the camshaft and crankshaft position sensors are just such codes.

...Lee
'94 850 N/A 5 speed
'96 Platinum Edition Turbo
Previous:
1999 V70XC - Nautic Blue - Totaled while parked.
1999 V70XC - RIP - Wrecked Parts Car.
1998 S70 T5
1996 850 N/A
1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe
Sniperboy80123
Posts: 12
Joined: Wed Aug 22, 2018 6:36 pm
Year and Model: 1998 Volvo s70 t5m
Location: Los Angeles

Re: 1998 Volvo s70 t5m

Post by Sniperboy80123 »

Yes I have scanned for codes have changed the cam and crank new from pepboys I have also changed the computer and it does the same thing I check the wire from the cam and crank side to side and there is going connect but when the car star it runs perfect no misfire or anything.
scot850
Posts: 6358
Joined: Mon Apr 05, 2010 2:46 pm
Year and Model: 2000 V70 R
Location: Calgary, Alberta, Canada
Has thanked: 22 times
Been thanked: 277 times

Re: 1998 Volvo s70 t5m

Post by scot850 »

I am sorry but I don't recognize your name on here and if you have posted on this issue before. So please help us to help you so we are not just (hopefully) stabbing in the dark or sending you in the wrong direction. I don't know your knowledge/experience on cars or particularly Volvos.

It would be helpful if you can give use the following information:

1) Have all the parts been changed to try to fix this problem or has the problem got worse or started since changing parts?

2) What parts have you swapped out? Please remember to give brands f the new parts as these Volvos are particular on certain brands of parts in some parts of the system.

3) You say the fuel pressure is ok, but what did you get and how was it tested? Again this can help us as these cars are now 20 years old and some parts like fuel pressure regulators can fail causing longer starts while the vehicle tries to get going.

4) Have you cleaned or repaired/replaced any parts of the fueling system like the MAF? Again brand is important.

The fact the car runs well once started is a good thing, but hard starts are not unknown but then there are some fixes too.

Neil.
2000 V70 R - still being an endless PITA
2006 XC70
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - New project and test bed - Sold
Sniperboy80123
Posts: 12
Joined: Wed Aug 22, 2018 6:36 pm
Year and Model: 1998 Volvo s70 t5m
Location: Los Angeles

Re: 1998 Volvo s70 t5m

Post by Sniperboy80123 »

Yes the parts haves been changed do to the problem the parts that have been changed are the cam sensor part#css1552 brand BwD the crank sensor is Su4107 and the is duralast the coil also had been replaced and the part number is c1090 and that duralast the ignition switch had also been replaced and the part number is ls963 that is duralast but it oem Volvo and the maf has been cleaned out the fuel pressure at prime is at 42-45 PSI and at crank its at 35psi and running its at 36-43 PSI with accelerating the fuel pressure was tested with an injectors cleaner gauge but also works with checking the fuel pressure
...Juan
User avatar
misha
Posts: 4518
Joined: Sun Dec 07, 2008 4:09 pm
Year and Model: '97 850 2.5 20v
Location: Serbia
Has thanked: 60 times
Been thanked: 164 times

Re: 1998 Volvo s70 t5m

Post by misha »

Fuel pump relay or main fuel injection relay on fan shroud(the grey one) could be the culprits.
I would say intermittent chipped key transponder but you guys didn't had them untill '99...but could be also immobiliser problem.
'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
Clemens
Posts: 1221
Joined: Thu Sep 03, 2015 12:34 pm
Year and Model: 96 855 R + 94 855 T5
Location: Austria
Has thanked: 102 times
Been thanked: 57 times

Re: 1998 Volvo s70 t5m

Post by Clemens »

I thought 98 already had chipped keys...

Also, what about the ignition switch?
Summer: 1996 855 R
Winter: 1994 855 T5M
Donor: 1995 854 10V
User avatar
misha
Posts: 4518
Joined: Sun Dec 07, 2008 4:09 pm
Year and Model: '97 850 2.5 20v
Location: Serbia
Has thanked: 60 times
Been thanked: 164 times

Re: 1998 Volvo s70 t5m

Post by misha »

In U.S they don't.
In EU from '96.
'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
Sniperboy80123
Posts: 12
Joined: Wed Aug 22, 2018 6:36 pm
Year and Model: 1998 Volvo s70 t5m
Location: Los Angeles

Re: 1998 Volvo s70 t5m

Post by Sniperboy80123 »

The ignition switch had been changed to see if problem will be solved.
User avatar
Clemens
Posts: 1221
Joined: Thu Sep 03, 2015 12:34 pm
Year and Model: 96 855 R + 94 855 T5
Location: Austria
Has thanked: 102 times
Been thanked: 57 times

Re: 1998 Volvo s70 t5m

Post by Clemens »

Thanks, Misha
Summer: 1996 855 R
Winter: 1994 855 T5M
Donor: 1995 854 10V
Post Reply
  • Similar Topics
    Replies
    Views
    Last post