Login Register

Part 2: PNP Removal

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
LamboSE5
Posts: 380
Joined: 29 July 2010
Year and Model: Empty
Location: shlu
Been thanked: 1 time

Re: Part 2: PNP Removal

Post by LamboSE5 »

Polska - Absolutely! If you are referring to the method I used to get it "aligned" without a tool, using the reverse lights as an indicator, here is what I did essentially..

(Safety! Make sure you block/chock all wheels before you do any of this guys.)
Once I had removed, taken apart, cleaned and re-assembled the PNP switch, I put it back onto the rod/shaft. I then put in the 17mm bolt that goes on the right side of the PNP switch, but not even hand tight, just enough for it to be 'in' the threaded hole and allow me to rotate/turn the switch to the left and right. The rod/shaft acting as the "axis".

With the rod/shaft turned (with channel lock pliars) to the Reverse position, and the gear shift selector knob (in the car :)) in the Reverse position, I had a friend stand behind the car - ready to call out "off" or "on".
Then I used a jumper cables to connect my battery cables to my battery, the battery was sitting on the ground in front of the front bumper.
(Note: I'm sure I remember other posters and people who did write-ups say that "the reverse lights will turn on and off as you rotate it in BOTH directions. Mine did not. Mine only came on after turning 'x' amount to the left (counter-clockwise). At least one other poster shared this weirdness with me.)

So, with the battery hooked up to the car by jumper cables, the selector knob in Reverse, the rod/shaft in Reverse, and the ignition in position...I or II, (I honestly can't remember this, which ever allows the reverse lights to be on - sorry) I rotated the PNP clockwise as far as it could turn. My reverse lights went off before it reached the 'end' of its clockwise turn (signaled by my friend saying "off", hah). Then I very slowly rotated it back counterclockwise and waited for the reverse lights to turn on (signaled by my friend saying "on", he was given some beer - don't worry). Now, mark the point where the lights turn on as best as you can - against something that isn't rotating with the PNP, you know?
From that marked point, as I continued to slowly rotate the PNP counterclockwise (left) all the way, my reverse lights stayed on the whole range.
So I just chose a spot between where they turned on and the rest of the 'range' of movement left (counterclockwise) using the clean area/bolt marks - where there was no rust/dirt as a marker. Then tighten down the 17mm bolt, and the rest, shift arm etc...

Oh one huge point I should mention:
I think the moment I knew It was in the right place was when I had sat in the car to move the shift knob into 'R' or something, I noticed that the Mode Selector lights (economy and winter) and the Orange Up Arrow had stopped flashing. That had not happened the other 2 or three times I put everything back together only to still see them flashing. The key to this is that you HAVE to have the battery hooked up to see if these are flashing or not. When I notice they weren't I said "hey..." then asked my friend "are the reverse lights on?" He said "yup", and I thought - It must be in the right place then. . . And it was.
More beer...

If this is a lil convoluted, my apologies.
And in reference to my Note above; if your reverse lights turn both on AND of as you rotate the PNP clockwise and counterclockwise on the rod/shaft, then it should be 'easier' to align it. You can kinda just "pick the middle" of your two inside marks you make.
But I really do think hooking up the battery is a huge help.

polskamafia mjl
Posts: 2640
Joined: 1 April 2009
Year and Model: 1995 Volvo 854 T-5R
Location: Hershey, PA
Has thanked: 19 times
Been thanked: 21 times

Post by polskamafia mjl »

Thanks a lot Lambo! This will help many people out in the future!
'All my money is gone and I have an old Volvo.' - Bamse's Turbo Underpants

Current: 1995 Volvo 850 T-5R Manual - Bringing it back from the brink of death
Previous: 1996 Volvo 850 GLT - Totaled

User avatar
LamboSE5
Posts: 380
Joined: 29 July 2010
Year and Model: Empty
Location: shlu
Been thanked: 1 time

Post by LamboSE5 »

Great - I'm glad to have contributed!

RegisWhite
Posts: 34
Joined: 6 November 2010
Year and Model: 1993, 850 GLT
Location: Pennsylvania, USA
Been thanked: 1 time

Post by RegisWhite »

Wow, I just found this link in a different post where I'd been kvetching about needing to remove/clean/replace/do-something-to the PNP, and this is exactly what I was needing! I don't know if I'm brave enough to try the whole thing today, but it's a great resource, and should make things a lot easier.

One question to whomever wants to take a shot at it--my 850 seems to be shifting just fine--it's not stuck in 3rd gear, in other words. Is there by chance a quick and easy way I could spray contact cleaner into the switch without all the dis-assembly, just to see if this makes the flashing arrow go off, and the reverse lights work? I'm not trying to take an easy way out; it's just that I don't want to cause more harm than good!

Hey, Polskamafia--do you still live in Hershey? I live in Uniontown, a couple of hours away from you; if you ever happen to be in the area, I'll spring for dinner and drinks if you came by to help me figure this thing out... :lol:

Many thanks...

cambiecbc
Posts: 33
Joined: 17 December 2010
Year and Model: 850GLT
Location: BC,Canada

Post by cambiecbc »

Thanks for those great posts !
I got the same problems with PNP switch and got one new one and replaced. I made an alignment tool with two thin strips with washers to align to make it parallel. The shift rod was reposition to the original marked place. Everything works except I have to push the shift handle half way toward P to let the reverse light on. Even adjust the position of the two screws of shifter rod to different place still the same. I kept the shift rod as original spots and rotate the switch , it can only be reached at green line as shown in picture, no further rotation could be applied due to barrier of metal parts. The picture shows the yellow line location of the old switch position. I used jump cable and let someone stand at the rear to check the reverse lights.

Every positions work but I have to push a little towards P just slightly off R to let the reverse light on. Any advice ?
Another problem came out is the Malfunction indicator light turn on because I forgot to plug the cable to the air filter box.
The warning light still on even I plug back the cable and reconnect the battery.
Image
Image
Image

polskamafia mjl
Posts: 2640
Joined: 1 April 2009
Year and Model: 1995 Volvo 854 T-5R
Location: Hershey, PA
Has thanked: 19 times
Been thanked: 21 times

Post by polskamafia mjl »

As far as pushing it towards park a bit to get the back up lights to turn on, it sounds like you just need to allign it again. I have a similar problem, on mine it won't start in neutral unless I push it forwards a bit to find the "sweet spot." What warning light are you talking about?

@ RegisWhite, my bad for taking so long. I've been at school for the past 4 months and I've been really busy with that so I apologize for not responding. As far as a quick and easy fix, with the car off, "row" the shifter back and forth like 20 times between park and L. This will essentially do the same thing as taking the PNP apart and cleaning the contacts does.
'All my money is gone and I have an old Volvo.' - Bamse's Turbo Underpants

Current: 1995 Volvo 850 T-5R Manual - Bringing it back from the brink of death
Previous: 1996 Volvo 850 GLT - Totaled

cambiecbc
Posts: 33
Joined: 17 December 2010
Year and Model: 850GLT
Location: BC,Canada

Post by cambiecbc »

The car runs fine after all the computer code reset. Thanks!

User avatar
LamboSE5
Posts: 380
Joined: 29 July 2010
Year and Model: Empty
Location: shlu
Been thanked: 1 time

Post by LamboSE5 »

Good to hear cambie

sashamarar
Posts: 1
Joined: 4 January 2011
Year and Model: 850 1993
Location: Albufeira, Portugal

Post by sashamarar »

Hello from Portugal guys. My Volvo's automatic gearbox is also bugging sometimes with that flashy arrow appearing from time to time, so I decided to put the hands on the PNP switch and clean it up. My plan is to clean it rather then buying a new one but today I came across a big problem. It seems like that here in Portugal nobody sells nor knows what Dielectric grease is. So, my question is: Will the normal vaseline serve for this purpose instead of Dielectric grease? Waiting for reply. Thank you. Sasha.

Ozark Lee
MVS Moderator
Posts: 14798
Joined: 7 September 2006
Year and Model: Many Volvos
Location: USA Midwest
Has thanked: 4 times
Been thanked: 75 times

Post by Ozark Lee »

I would avoid Vaseline, I fear it would gum up to much.

Dow Corning has a distributor in Barcelona that should be able to point you to a place to buy it:

ANTALA INDUSTRIA, S.L.

+34 93 4746666

What you are looking for is Molykote G-5008.

...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

Post Reply
  • Similar Topics
    Replies
    Views
    Last post