Login Register

Diary of a 17 y/o with an 850

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

Post Reply
User avatar
abscate
MVS Moderator
Posts: 35294
Joined: 17 February 2013
Year and Model: 99: V70s S70s,05 V70
Location: Port Jefferson Long Island NY
Has thanked: 1504 times
Been thanked: 3817 times

Re: Diary of a 17 y/o with an 850

Post by abscate »

Thats a wipe up with a paper towel and forget about it.

When my relatives last visited, I spent hours cleaning the trunk until Luminol tested negative.
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

User avatar
shihabafi
Posts: 88
Joined: 8 July 2018
Year and Model: 1995 850 Wagon
Location: Atlanta, Georgia
Has thanked: 50 times
Been thanked: 8 times
Contact:

Post by shihabafi »

Today we went to the junkyard and ripped out an engine coolant temp sensor, as well as a door lock mechanism, to fix mine which had been broken for oh so long. So I put the "new" one in, and lo and behold, it doesn't work. I think Robert's got a video about fixing the actual solenoid in that, so I might take a look and see what I can do...

Then I went to turn on my car, and it still hesitated (takes 2-3 seconds to catch. Then, if I turn the car off, it will take longer, and longer), and when I turned it off, the fan still spun for a good minute or so.

I drove around for about an hour (running errands and whatnot), and when I came back, still showed that the ECT was bad, and the fan still spun after turning it off.

What now?

User avatar
misha
Posts: 5379
Joined: 7 December 2008
Year and Model: '97 850 2.5 20v
Location: Serbia
Has thanked: 152 times
Been thanked: 402 times

Post by misha »

Now check ECT connector from wiring harness side and check both ECT sensors resistance with a multimeter.
'97 850 2.5 20v / fully equipped / Motronic 4.4 from the factory / upgraded with S,V,C,XC70 instrument cluster / polar white wagon
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
shihabafi
Posts: 88
Joined: 8 July 2018
Year and Model: 1995 850 Wagon
Location: Atlanta, Georgia
Has thanked: 50 times
Been thanked: 8 times
Contact:

Post by shihabafi »

misha wrote: 25 Aug 2018, 17:43 Now check ECT connector from wiring harness side and check both ECT sensors resistance with a multimeter.
Should I be looking for all 12 volts?

User avatar
misha
Posts: 5379
Joined: 7 December 2008
Year and Model: '97 850 2.5 20v
Location: Serbia
Has thanked: 152 times
Been thanked: 402 times

Post by misha »

No...you should be looking for a resistance which is depandable of ambient temperature when ect is removed.
'97 850 2.5 20v / fully equipped / Motronic 4.4 from the factory / upgraded with S,V,C,XC70 instrument cluster / polar white wagon
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: 35294
Joined: 17 February 2013
Year and Model: 99: V70s S70s,05 V70
Location: Port Jefferson Long Island NY
Has thanked: 1504 times
Been thanked: 3817 times

Post by abscate »

Shihab, if you search my maintenamce log for my 1999 you will find a link to the ECT resistance measurements as a function of temperature

You can also search this forum but I always have trouble finding them.

Try search on. 9186846 , the part number for the ECT
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

User avatar
matthew1  
Site Admin
Posts: 14475
Joined: 14 September 2002
Year and Model: 850 T5, 1997
Location: Denver, Colorado, US
Has thanked: 2652 times
Been thanked: 1245 times
Contact:

Post by matthew1 »

Help keep MVS on the web -> click sponsors' links here on MVS when you buy from them.

Also -> Amazon link
. Click that when you go to buy something on Amazon and MVS gets a cut!

1998 V70, no dash lights on

1997 850 T5 [gone] w/ MSD ignition coil, Hallman manual boost controller, injectors, R bumper, OMP strut brace

2004 V70 R [gone]

How to Thank someone for their post

Image

User avatar
shihabafi
Posts: 88
Joined: 8 July 2018
Year and Model: 1995 850 Wagon
Location: Atlanta, Georgia
Has thanked: 50 times
Been thanked: 8 times
Contact:

Post by shihabafi »


User avatar
shihabafi
Posts: 88
Joined: 8 July 2018
Year and Model: 1995 850 Wagon
Location: Atlanta, Georgia
Has thanked: 50 times
Been thanked: 8 times
Contact:

Post by shihabafi »

Right okay... sooooooooo my car has been fixing itself...? I thought I was going crazy, but no... It's really happening.

It started with the door lock mechanism. Both my rear door lock mechanisms failed so I've been driving around without rear door panels and without locking them for quite some time now. Then, one day I try getting in from the back (I do it occasionally because it's easier than yanking out my key and stabbing the key hole), and it wouldn't open. So I unlocked it, and it opened. And I locked and unlocked it many many times, and it was working. So I put the metal piece that connects the door handle to the mechanism, and today it stopped working again. :'(

There's also the P0117 I was worried about. I noticed that my radiator fan stopped running as soon as I turned off the car. This seemed suspicious to me, as it ran for a good few minutes after I turned off the car (ever since the code popped up). So I scanned the car, and the P0117 disappeared. I'm lost.

So I cleared my CEL codes, to see what would pop up, and guess what?

I'm driving around without any lights on my dash as of today.

What's going on? I don't know. But, I'm not complaining....

User avatar
abscate
MVS Moderator
Posts: 35294
Joined: 17 February 2013
Year and Model: 99: V70s S70s,05 V70
Location: Port Jefferson Long Island NY
Has thanked: 1504 times
Been thanked: 3817 times

Post by abscate »

Shiahbafi - I lost your post on measuring the ECT (was in the wrong place) but here is the clarification

The chart is a bit misleading as VIDA shifted the columns by one block to the left - if you pretend the data refers to the block to the right, then it makes sense
Screen Shot 2018-09-10 at 9.57.38 AM.png
Screen Shot 2018-09-10 at 9.57.38 AM.png (419.87 KiB) Viewed 1383 times

You want to pull the connector and measure the resistance (OHMS) across the sensor when cold and when hot. Im not sure of the tolerance on these measurements - haven't seen that listed anywhere. I think it is pretty wide, though.

With an ambient temperature of 56F (about 12C) my coolant sensor is reading 3840 Ohms.
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

Post Reply
  • Similar Topics
    Replies
    Views
    Last post