spark plugs
sanchlr88
11-10-2008, 01:54 AM
im going to change the spark plugs on my 2004 navigator but im not quite sure what spark plugs to get theres a few to choose from i want to get one of the best ones there is any one nows plz help
go_phx
04-05-2009, 11:09 PM
I don't get to this site often...but thought I'd post my experience changin the plugs in my 2006 Navigator....
After much internal debate...I decided that I would rather tackle the spark plug change myself at 36,100 miles on my 2006 Navigator. I have read all of the absolute horror stories about broken ceramic or worse, the dreaded empty shield in the head. Well, I had none of that and all 8 of my plugs came out - rather easily I might say. Not sure if it matters, but my Navi is a very early 2006 model build. Engine date is May 05 and my door jamb says build date is June 05.
Plugs I used were Motorcraft SP-462 (PZT1F) ordered from RockAuto @ $7.32 each. I originally had the Champions but returned them after hearing others review. Besides at $18/plug for the Champion...the Motorcraft is a much better value. I used B12 Chemtool Carb & Choke cleaner as the carbon softening agent.
I tackled the passenger side first to get the tough bank out of the way.
Engine was STONE COLD. I positioned it in the garage last night so I wouldn't have to turn it over at all today. I started at about 9:00am.
1. Disconnect negative battery
2. Disconnect all 8 COP, COP harness and injector harness
3. Compress air to blow out all debris from plug holes
4. Without turning the plugs one bit, spray about a teaspoon of B12 Chemtool in all 8 plug holes
5. Ran a bunch of errands to kill about 1 1/2 hours of time to let the B12 work.
6. I started with #5 - real easy to get so I could get the feel for what this was going to feel like. Much to my delight, it started twisting real easy. After a few turns, I used the compressed air to blow any excess B12 out of the port so it wouldn't flow into the combustion chamber when I removed the plug.
7. With the plug out, used more compressed air to makes sure all debris was out.
8. Used nickel anti-seize on the threads and shield (see pic).
9 Repeat on #6, #7, #8.
10. I used A silicone dielectric grease on the COP boots and all electrical connections.
11. Moved to driver side and completed #1, #2, #3, #4.
12. Numbers 3 and 4 were the only two plugs that screeched at all coming out so I took a whole lot of extra time with them. Turned them out some, added more B12, drank a beer, compresses air out the excess B12, started turning again. They came out just fine.
13. Buttoned everything up, fired it up and drove a few miles. Everything seems to be working great...even seems to run and idle better.
14. I am one RELEIVED and HAPPY Navi owner.
After much internal debate...I decided that I would rather tackle the spark plug change myself at 36,100 miles on my 2006 Navigator. I have read all of the absolute horror stories about broken ceramic or worse, the dreaded empty shield in the head. Well, I had none of that and all 8 of my plugs came out - rather easily I might say. Not sure if it matters, but my Navi is a very early 2006 model build. Engine date is May 05 and my door jamb says build date is June 05.
Plugs I used were Motorcraft SP-462 (PZT1F) ordered from RockAuto @ $7.32 each. I originally had the Champions but returned them after hearing others review. Besides at $18/plug for the Champion...the Motorcraft is a much better value. I used B12 Chemtool Carb & Choke cleaner as the carbon softening agent.
I tackled the passenger side first to get the tough bank out of the way.
Engine was STONE COLD. I positioned it in the garage last night so I wouldn't have to turn it over at all today. I started at about 9:00am.
1. Disconnect negative battery
2. Disconnect all 8 COP, COP harness and injector harness
3. Compress air to blow out all debris from plug holes
4. Without turning the plugs one bit, spray about a teaspoon of B12 Chemtool in all 8 plug holes
5. Ran a bunch of errands to kill about 1 1/2 hours of time to let the B12 work.
6. I started with #5 - real easy to get so I could get the feel for what this was going to feel like. Much to my delight, it started twisting real easy. After a few turns, I used the compressed air to blow any excess B12 out of the port so it wouldn't flow into the combustion chamber when I removed the plug.
7. With the plug out, used more compressed air to makes sure all debris was out.
8. Used nickel anti-seize on the threads and shield (see pic).
9 Repeat on #6, #7, #8.
10. I used A silicone dielectric grease on the COP boots and all electrical connections.
11. Moved to driver side and completed #1, #2, #3, #4.
12. Numbers 3 and 4 were the only two plugs that screeched at all coming out so I took a whole lot of extra time with them. Turned them out some, added more B12, drank a beer, compresses air out the excess B12, started turning again. They came out just fine.
13. Buttoned everything up, fired it up and drove a few miles. Everything seems to be working great...even seems to run and idle better.
14. I am one RELEIVED and HAPPY Navi owner.
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