Back 4 spark Plugs : Bonneville GXP/Northstar Powered Cars

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Back 4 spark Plugs

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zigger21

Post subject: Back 4 spark Plugs

Posted: Sun Aug 01, 2010 9:55 pm

SLE Member

Joined: Fri Jul 09, 2010 11:43 am
Posts: 86
Year and Trim: 1997 Bonneville SSE
2005 Bonneville GPX

Culd I get some insight on how to change the back four spark plugs on my GXP? I need all the help I can get. Thanks and take care. Jonathanb

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zigger21

Post subject: Re: Back 4 spark Plugs

Posted: Sun Aug 01, 2010 10:47 pm

SLE Member

Joined: Fri Jul 09, 2010 11:43 am
Posts: 86
Year and Trim: 1997 Bonneville SSE
2005 Bonneville GPX

I could use any tips and information inhh order to make this process pain free. Any advice would be greatly appriciate it. Take care.

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1fatcat

Post subject: Re: Back 4 spark Plugs

Posted: Sun Aug 01, 2010 10:56 pm

Posts like an L67

Joined: Mon Mar 30, 2009 11:18 pm
Posts: 1254
Location: Zimmerman, MN
Year and Trim: before cars

Have an assortment of metric tools and take your time. Keep removing bolts until the spark plugs come out.

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CMNTMXR57

Post subject: Re: Back 4 spark Plugs

Posted: Mon Aug 02, 2010 9:43 am

Certified Bonneville Nut

Joined: Wed May 13, 2009 10:45 pm
Posts: 5827
Location: CHICAGO
Year and Trim: 2006 STS-V, 2004 GTO, 2009 G8 GT

1) Remove strut tower brace
2) Remove Secondary A.I.R. shut off valve. This is the big piece in the center of the rear cam cover. You'll need a long extension with either a swivel or U-joint and a 10mm socket to get the nuts off the exhaust flange. From there, the same 10mm works on the bolts that hold it to the cam cover. You will need a 10mm wrench on the one bolt a socket can't get to. Disconnect A.I.R. feed from the pump (the big rubber hose).

Have at it... They replace the same as the front.

This is what I sent to you via PM. I thought you got it;

Quote:

NP. It's the same as the front, except you need to remove the Secondary A.I.R. shut-off valve that sits right in the center, on top of the cam cover. And before that, I would remove the Strut tower brace. I believe that's a 13mm bolt. They're a threaded nut, so don't worry about having issue putting it back in.

You're gonna need some extensions, and a swivel or u-joint, with a 10mm deep well socket. This will be used to undue the nuts on the exhaust flange for that the Secondary A.I.R. system feed into. From there, a combination of a 10mm wrench and 10mm socket will undue the bolts holding it to the cam cover. Disconnect the electrical harness, as well as the feed tube from the Secondary A.I.R. pump.

With this, you can take it all off, put it aside, and you're free as you are in the front (sans a little tighter workspace.

_________________

Retired Bonneville Owner and former GM Tech:
2004 Pontiac Bonneville GXP: Black/Ebony *SOLD*

Summer Toys: Combined 827 RWHP / 877lb/ft RWTQ
2004 Pontiac GTO: Impulse Blue Metallic/Black/M6: lots 'o mods, 415 RWHP / 405lb/ft RWTQ!
2006 Cadillac STS-V: Light Platinum Metallic/Light Gray/A6 - Spectre CAI, Magnaflow exhaust, Speed Inc. tune, 412 RWHP / 472lb/ft RWTQ

Daily Drivers:
2019 Chrysler Pacifica Limited: Mommy's new RGC
2015 Chrysler Town & Country Limited Platinum: Kids new RGC
2007 Chrysler Town & Country Limited: Sold to neighbor
2009 Pontiac G8 GT: L76, Sport Red Metallic
2003 Chevrolet Suburban 2500: Doeskin Tan - 8.1L Big Block... new plow truck
1999 Chevrolet Suburban: Sunset Gold Metallic - Daddy's winter beater and plow truck

Last edited by CMNTMXR57 on Mon Aug 02, 2010 9:46 am, edited 1 time in total.

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zigger21

Post subject: Re: Back 4 spark Plugs

Posted: Fri Sep 03, 2010 9:43 pm

SLE Member

Joined: Fri Jul 09, 2010 11:43 am
Posts: 86
Year and Trim: 1997 Bonneville SSE
2005 Bonneville GPX

Hi guys, it was painless. All I had to do is remove the bar running horizontally over the engine, then I removed the peice of equipment above the rear plugs. I used a swivel ratchet that hooks on to the ratchet and I also used a spark plug swivel ratchet and it angled down into spark plug hole perfect. It took me about 45 minutes to do all 8 plugs. Pretty painless, the fear of the unknown got to me but once I got my hands dirty it was a piece of cake. If you have any questions about it PM me and I can sure help you out. Take care guys and girls

Last edited by zigger21 on Fri Sep 03, 2010 9:43 pm, edited 1 time in total.

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Portal » Board index » Mechanical and Maintenance (no chat or performance) » Bonneville GXP/Northstar Powered Cars

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