Welcome to the world of Saab ! Register
Results 1 to 8 of 8
  1. #1
    Frank Wulfers
    Netherlander Wulf's Avatar
    Join Date
    30 Jul 2010
    Location
    NW Michigan, USA
    Posts
    6,801
    Saab(s)
    '05 Saab 9-5 Aero
    Blog Entries
    13

    Spark plugs replacement / change - Saab 9-5 4-cylinder

    Tools needed:

    • ratchet with extensions
    • spark plug socket
    • torx head socket / driver
    • feeler gauge
    • screw driver

    Parts and supplies needed:


    Difficulty rating (scale 1 to 5):

    1 - very easy. Anyone with basic mechanical skills can do this.

    Time estimate: 15 - 30 minutes

    Instructions

    Name:  P1130011.jpg
Views: 3642
Size:  48.3 KB

    The spark plugs are on top of the engine below the Direct Ignition Cassette.

    Unplug the DIC. The connector is on the right side marked by the arrow.

    Name:  P1130013.jpg
Views: 3601
Size:  91.9 KB

    The red part of the connector slides out. Carefully wiggle it out with a screw driver being careful not to use too much force. It slides out easily.

    Name:  P1130014.jpg
Views: 3536
Size:  69.4 KB

    Name:  P1130016.jpg
Views: 3528
Size:  69.9 KB

    Remove the 4 torx bolts from the DIC.

    Name:  P1130019.jpg
Views: 3551
Size:  67.3 KB

    Lift up the DIC and put it aside.

    Name:  P1130021.jpg
Views: 3540
Size:  73.3 KB

    Remove the 4 spark plugs

    Name:  P1130022.jpg
Views: 3607
Size:  65.6 KB

    Check the new spark plugs for the correct gap measurement. Adjust if needed.

    Fit the new spark plugs in the engine. Many spark plugs have washers that compress when the plugs are tightened. The spark plugs box should show how they should be tightened. These NGK plugs need to be hand-tightened first and an additional 1/2 to 2/3 turn with a wrench.

    The Saab WIS shows a tightening torque of 28 Nm (21 lbf ft) if you want to use a torque wrench. With these plugs, tightening a 1/2 turn required medium effort. Just a little bit more and they are tight.

    Name:  P1150708.jpg
Views: 1779
Size:  44.6 KB

    Name:  P1130034.jpg
Views: 3489
Size:  69.9 KB

    Name:  P1130036.jpg
Views: 3486
Size:  70.5 KB

    Add some di-electric grease to the tips of the DIC.

    Name:  P1130040.jpg
Views: 3488
Size:  55.7 KB

    Put the DIC back in place.

    Name:  P1130037.jpg
Views: 3490
Size:  60.3 KB

    Fit the 4 DIC bolts and tighten in a cross pattern

    Plug in the DIC connector and slide in the red piece.

    Name:  P1130042.jpg
Views: 3459
Size:  66.8 KB
    Burnsside42 and saabturk like this.

  2. #2
    Frank Wulfers
    Netherlander Wulf's Avatar
    Join Date
    30 Jul 2010
    Location
    NW Michigan, USA
    Posts
    6,801
    Saab(s)
    '05 Saab 9-5 Aero
    Blog Entries
    13
    My newly acquired 2004 Saab 9-5 has about 57K miles on it. The spark plugs that were in this 2.3T engine (PFR6H-10) looked like they were well used so I think it is safe to assume these are the original spark plugs installed from the factory.

    I replaced them with regular BCPR6ES (not Platinum) plugs. They are much less expensive but have to be replaced more often. Even after the 57K miles, the platinum tips still worked fine so it sure looks like the platinum plugs hold up very good over many miles.

    Left: BCPR6ES - Right: PFR6H10

    Name:  Old and new spark plugs 2.jpg
Views: 4150
Size:  75.0 KB

    Name:  Old and new spark plugs 3.jpg
Views: 3541
Size:  55.3 KB

  3. #3
    Renato Piereck
    Spreading the Saab virus rpiereck's Avatar
    Join Date
    24 Jul 2011
    Location
    Ansbach, Germany
    Posts
    1,534
    Saab(s)
    '00 9-5 Aero SC, 87 900i 8v
    Blog Entries
    30
    Good, clear tutorial, you could cross post this to the NG900/OG9-3 too, as the replacement procedure is exactly the same.
    Now: '00 Saab 9-5 Aero Combi - '89 Peugeot 205 CTI - '91 Peugeot 309 GTI
    Gone:
    '87 Saab 900i - '95 Saab 900 SE Turbo

  4. #4
    New Member T4hir's Avatar
    Join Date
    19 Oct 2012
    Location
    UK
    Posts
    32
    Saab(s)
    9000CSE, 9-3SE, 9-5 HOT Aero
    I just replaced the old NGK PFR6H-10 with a set of the same new ones, quite readily available. These are the platinum ones which I read somewhere should be the only ones used with the black DI module engines? Also, the service life on these is incredibly longer, around 50k miles.

  5. #5
    Frank Wulfers
    Netherlander Wulf's Avatar
    Join Date
    30 Jul 2010
    Location
    NW Michigan, USA
    Posts
    6,801
    Saab(s)
    '05 Saab 9-5 Aero
    Blog Entries
    13
    These are PFR6H-10 from a 2005 Saab 9-5 Aero with 45K miles. It looks like they may be the original plugs but I am not sure. I measured the gap and it was still within specs at 0.95mm, exactly the same as the new plugs. Saab specifies 0.9 - 1.0 mm for the B235R engine. They are not cheap but definitely worth the money.

    Name:  P1150712.jpg
Views: 1766
Size:  72.6 KB

    Name:  P1150712 2.jpg
Views: 1870
Size:  99.3 KB
    Motor Gearheads - automobiles, motorcycles, road adventures, general motor forum

  6. #6
    New Member brentcd's Avatar
    Join Date
    25 Feb 2013
    Location
    United States
    Posts
    27
    Saab(s)
    2006 9-5 Sport Combi w/ Sport Pkg
    What size spark plug socket is that? I have several and they are all too large in outside diameter to fit down the well with the spark plug in.

  7. #7
    Frank Wulfers
    Netherlander Wulf's Avatar
    Join Date
    30 Jul 2010
    Location
    NW Michigan, USA
    Posts
    6,801
    Saab(s)
    '05 Saab 9-5 Aero
    Blog Entries
    13
    NGK specs shows you'll need a 5/8" (16 mm) spark plug socket. http://saabworld.net/attachments/f14...tnumberkey.pdf

    I checked the socket I have but there wasn't a size on it.
    Motor Gearheads - automobiles, motorcycles, road adventures, general motor forum

  8. #8
    Regular Member AT ONE SIR's Avatar
    Join Date
    10 Jul 2013
    Location
    Seattle USA
    Posts
    127
    Saab(s)
    2001 9-5 Wagon
    The simplicity of this excellent tutorial combined with the fact that I just bought a used Saab encouraged me to change my plugs during my lunch break. Good thing, too. Seems that the previous owner had been running NGK PFR6H-10 in the car (2001 9-5 Wagon). I was getting some codes and a CEL before the change to the recommended BCPR6ES-11, but the CEL disappeared automatically on the second start, and I have cleared the codes.

    I do have a torque wrench that I set for 20ft-lb to be safe, but I didn't get a click and felt it was pretty tight, so I did the rest by hand and checked the first again by hand. It is hard to describe but you really do "know" when they are tight enough. Anyone have any tricks or procedures as to how I can test and/or calibrate my torque wrench? I thought it would be particularly useful for working on my road bike, but got too nervous to take it to the *click* with the Saab's plugs.

    I have added photos of my old (non-spec) plugs and noticed that one of them had a RED colored tip, one was pretty dark, and the others just looked like old plugs. Nothing matched on the great NGK Plug Reading site, so I'm not sure what to make of it. I also realize that I made a real newb move by not labeling the cylinder each came from, but will do so next time.
    Name:  000_0101.jpg
Views: 1
Size:  29.9 KBName:  000_0099.jpg
Views: 0
Size:  16.1 KB

    Tips for Saab newbs:
    1- Keep track of the associated cylinder for each plugs and photograph them, it might help you head off a problem or be helpful to share with your mechanic.
    2- Test or calibrate your torque wrench ahead of time so you can be confident using it should you choose such a tool for this task.
    3- Take the extra step to blow or vacuum out any debris before removing your old plugs.
    4- Get a long extension for your plug socket as shown in the tutorial.
    Last edited by AT ONE SIR; 29 August 2013 at 23:40. Reason: Added NGK plug reading link
    2001 9-5 Wagon

 

 

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
All times are GMT. The time now is 06:15.
Powered by vBulletin® Version 4.2.2
Copyright © 2014 vBulletin Solutions, Inc. All rights reserved.
SEO by vBSEO ©2011, Crawlability, Inc.
vBulletin Skin By: PurevB.com