Matthews Volvo Site Forum » 850 & S70
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Matthews Volvo Site is an online forum and news for all Volvo models. Here you will find more discussion on Volvo 850 & S70 models, talk about the fuel pump and ejector, share your favorite method for cleaning rubber Volvo mats, discuss the issues, get help with parts & repair, and find advice and DIY tutorials.
Matthews Volvo Site Forum » 850 & S70
3h ago
Hi and welcome!
The dashboard wiring harness is different over here between 1998 MY and 1999MY. I am not sure if this is the case in the UK. Does your 98 have a cable throttle and the 99 an electronic one? The ABS module for a 98 and 99 I believe may also be different. Check the ABS module cover for the part number and compare with those listed on Mid-west ABS website to see if they are the same. They may have different part numbers but operate the same way as Volvo changed the numbers so often. It is more likely they are not the same.
Neil.
Statistics: Posted by scot850 — Sat Jun 01, 2024 1 ..read more
Matthews Volvo Site Forum » 850 & S70
7h ago
ABS repair is mostly reflowing solder joints. Most people have trouble learning how to separate and close the case cleanly. An advantage of sending it to midwest https://midwest-abs.com is they know what to look for on the inside, have repaired so many now.
Statistics: Posted by erikv11 — Sat Jun 01, 2024 6:58 pm ..read more
Matthews Volvo Site Forum » 850 & S70
10h ago
Hi Volvo fans
After many years of a shabby interior I bought a full donor replacement and fitted it. The problem I have is the speedo and rev counter don’t work and an abs lamp is on.
There are no codes and using a diagnostic tool I can see the rpm and speed on live data.
I have found out that although they are both 1998 cars mine is a MY98 and the donor is an MY99.
The easy fix would be to swap the wiring harnesses over but I kind of ditched the original before checking it all worked.
Any help or advise much appreciated
Statistics: Posted by PaulBucklandUK — Sat Jun 01, 2024 4:19 pm ..read more
Matthews Volvo Site Forum » 850 & S70
10h ago
I still ship the diodes for the sas delete free on request , just send me your address on a $20 bill please
Bung 3517907 still available new!!
I actually already did it, took out the pump, vacuum lines, capped the vacuum tree, left the solenoid plugged in. Only CEL was because I forgot to plug the MAF back in.
This is caused by the valve on the exhaust manifold failing and not closing which allows condensation to run down into the SAS pump. If it will still run, drill a small hole in the bottom of the casing to allow water to drain out.
Neil.
The valve seemed to be stuck closed, at least ..read more
Matthews Volvo Site Forum » 850 & S70
13h ago
Today's Volvo stuff was all in my head, wondering how much electrical overhead is available for things like a sound system or lights. Anyone have an idea what the overall draw of the car is like when stock?
Statistics: Posted by RedBrickCollector — Sat Jun 01, 2024 12:10 pm ..read more
Matthews Volvo Site Forum » 850 & S70
15h ago
Look around town for an old school automotive electric shop,with British cars parked outside.
That’s your gal/ guy
I pay about $100 to get mine rebuilt with good parts at a shop near Albany NY. I think I have a guy down here In Port Jefferson too, haven’t stopped in
Statistics: Posted by abscate — Sat Jun 01, 2024 10:25 am ..read more
Matthews Volvo Site Forum » 850 & S70
15h ago
I still ship the diodes for the sas delete free on request , just send me your address on a $20 bill please
Bung 3517907 still available new!!
Statistics: Posted by abscate — Sat Jun 01, 2024 10:22 am ..read more
Matthews Volvo Site Forum » 850 & S70
15h ago
And jrnsis did a nice job documenting the bung on both sides
M16x 1.5
M18x 1.5
Part number
It’s called a nipple in Volvo-Swede-speak and the picture is wrong but this is it..
Statistics: Posted by abscate — Sat Jun 01, 2024 10:14 am ..read more
Matthews Volvo Site Forum » 850 & S70
16h ago
Did you use a Volvo part for this?
If unplugging the switch didn’t turn out the dash lights, you have a wiring fault somewhere in the looms. This won’t be easy to find and will require diagram and tracing skills
Statistics: Posted by abscate — Sat Jun 01, 2024 10:06 am ..read more
Matthews Volvo Site Forum » 850 & S70
20h ago
This is caused by the valve on the exhaust manifold failing and not closing which allows condensation to run down into the SAS pump. If it will still run, drill a small hole in the bottom of the casing to allow water to drain out.
Neil.
Statistics: Posted by scot850 — Sat Jun 01, 2024 5:40 am ..read more