2001 Towncar Plug Replacement - TCCoA Forums
 
LinkBack Thread Tools
post #1 of 9 (permalink) Old 08-08-2019, 12:04 PM Thread Starter
Newbie
 
Join Date: Nov 2017
Posts: 15
2001 Towncar Plug Replacement

Looked at several vids and help forums but none mention removing the high pressure fuel rail that is above and blocking the ignition coils. Can someone point me to some help on this. It looks like it's beyond my paygrade to do a simple plug replacement on this 2001 4.6 liter with 72k miles. It's running rough sometimes and I don't know the service history although It was very well maintained by previous owner. I do have the stuff to test the coils and firing. Just cannot see how to remove the plugs due to the long rail blocking them.
masterdrago is offline  
Sponsored Links
Advertisement
 
post #2 of 9 (permalink) Old 08-08-2019, 12:07 PM
Seasoned PostWhore

Super Moderator
 
Join Date: May 2003
Location: Tinton Falls, NJ
Age: 36
Posts: 7,428
Garage
Send a message via AIM to MadMikeyL
Once the bolts are removed, there is enough play in the coil boots that they can slide out around the fuel rail. It is a very easy job. Personally, with the vehicle being 18 years old, I would replace the coils at the same time. They fail due to heat and age more than mileage, so they are probably causing more of a problem than the plugs if it only has 72K miles on it.

-91 Cougar LS, coming soon, complete overhaul with a 427" Windsor.
-90 XR7 5-speed black on black w/sunroof, MP2, coated rotors, double intercooler, 15%OD, ported heads, comp stage 1 cam, 85mm TB, 90MM LMAF, 80# injectors, and ported big valve heads
-98 Mark VIII LSC, Procharger P600b, TR3650 swap and 3.73s.
-90 SC Automatic rustbucket winter beater
-97 Tbird Sport 4.6 Nice weather daily driver
-"Your buddy Mike is INSANE!" -ClintD's dad
MadMikeyL is offline  
post #3 of 9 (permalink) Old 08-08-2019, 12:12 PM
Humble MN12 Genius
Super Moderator
 
XR7-4.6's Avatar
 
Join Date: Apr 2006
Location: Roselle IL
Posts: 16,580
Garage
Send a message via Yahoo to XR7-4.6
You don’t need to remove the fuel rails, after you remove the retaining bolts you need to firmly pull the coils towards the valve covers for them to clear, and do the reverse for installation. The angle of the spark plug wells allows for a straight shot to the plugs with the wrench without interfering with the fuel rails.

Wear mechanics gloves when you’re pulling and installing the coils, I can’t tell you how many times I’ve broken skin against the fuel rails getting them out.

-Matt
XR7-4.6 is offline  
Sponsored Links
Advertisement
 
post #4 of 9 (permalink) Old 08-09-2019, 09:38 PM Thread Starter
Newbie
 
Join Date: Nov 2017
Posts: 15
Thanks for the input. So by just pushing the coil up towards the valve cover, I can wiggle them out. As for replacing all of them, I know I can check if they are sending spark voltage to the plug. I got one of those fake plugs with the ground wire on it. If I do decide to simply replace all 8, I've noticed over at RA, they have 13 different coils listed ranging in price from $8 to $33. The Ford version is $31/ea. Bosch is $19 and the Spectra Premium are $75/8 coils or $10.80 individual. Any suggestions? And thank you for the glove warning. I always forget until too late :+[
masterdrago is offline  
post #5 of 9 (permalink) Old 08-10-2019, 06:42 AM
Seasoned PostWhore

Super Moderator
 
Join Date: May 2003
Location: Tinton Falls, NJ
Age: 36
Posts: 7,428
Garage
Send a message via AIM to MadMikeyL
Just cause it delivers spark according to the tester doesn’t mean it isn’t bad. The plastic insulation breaks down, and it starts intermittently misfiring, usually worse when it is raining. If you are going to keep the car long-term spend the extra money and get the motorcraft ones. The originals lasted 18 years, and the aftermarket ones usually last 2 or 3 years, so when you divide the cost over their lifespan, the motorcrafts are the better value.

-91 Cougar LS, coming soon, complete overhaul with a 427" Windsor.
-90 XR7 5-speed black on black w/sunroof, MP2, coated rotors, double intercooler, 15%OD, ported heads, comp stage 1 cam, 85mm TB, 90MM LMAF, 80# injectors, and ported big valve heads
-98 Mark VIII LSC, Procharger P600b, TR3650 swap and 3.73s.
-90 SC Automatic rustbucket winter beater
-97 Tbird Sport 4.6 Nice weather daily driver
-"Your buddy Mike is INSANE!" -ClintD's dad
MadMikeyL is offline  
post #6 of 9 (permalink) Old 08-10-2019, 09:54 AM
No, Mr. Lemmywinks, No!!!

Moderator
 
Grog6's Avatar
 
Join Date: Jun 2005
Location: Harriman, TN
Age: 56
Posts: 10,026
Garage
I was going to suggest holding the coil by the "wire" section as it was tested to rule that out, Mikey.

Motorcraft is the way to go.

Red '96 Cougar XR-7 240k mi. '02 4R70W, PST DS : '03 PI engine, 04 maf, 24lb injectors, 2.5" exhaust, '02 4r70w + Jmod, DirtyD0g TC + cooler + 3/8" lines, 255 walbro fp. Alpine system.
Black '96 Cougar XR-7 (Lazarus) 210k mi PI Intake, '02 4R70W, Jmod, PST DS, GrogTune, Konis, Mark LCA+Poly, racecougar Custom Engine Chain, and JL and racecougar Bracing.
Black '97 Tbird Limited Edition, '02 4R70W, 255 walbro, PST DS, PBR Brakes&SS lines, Toicko Blues & Springs, GrogTune.


"War Is Peace. Freedom Is Slavery. Ignorance Is Strength." - George Orwell.
Truth Isn't Truth. - Rudy Giuliani, 2018 Award winner, “Most Outrageous Diversion” by MSNBC for this quote
Grog6 is offline  
post #7 of 9 (permalink) Old 08-10-2019, 11:18 AM Thread Starter
Newbie
 
Join Date: Nov 2017
Posts: 15
The price on the Motorcraft is all over the spectrum. Set can run from $191 to $384 depending on where purchased. Best deal looks like AMZN on the Motorcraft. If you buy them individually, they are Prime and slightly lower in cost. Instead of getting the Spectra Premium for $75ish, you guys have talked me into spending the extra dough on the Motorcraft even though we don't drive it that much. Thanks. I kind of expected that answer from the crew here. Y'all are always giving me the best answers.


Last edited by masterdrago; 08-10-2019 at 11:24 AM.
masterdrago is offline  
post #8 of 9 (permalink) Old 08-10-2019, 02:07 PM
PostWhore
 
T6Rocket's Avatar
 
Join Date: Nov 2004
Location: Raleigh, NC
Posts: 1,749
I don't mind spending money on factory parts, but even I wouldn't replace the coils at 72k miles if the plugs are likely the originals. Try a set of factory Motorcraft double platinum plugs and go from there.

Although the car ran fine, my original plugs with 62k looked quite worn. A new set really perked the car up.

Al

97 T-Bird LX 4.6 - 80k miles
94 Supra TT Auto - street/strip car
04 CVPI- Brenda's car - 76k miles
Previous Fords:
95 T-Bird LX 4.6 - fully optioned, owned 15 years, 220k miles
96 Cougar XR-7 4.6- Brenda's car, owned 11 years, 187k miles
88 T-Bird 3.8 - first T-Bird, owned 5 years, 206k miles
T6Rocket is offline  
post #9 of 9 (permalink) Old 08-10-2019, 06:20 PM
Seasoned PostWhore

Super Moderator
 
Join Date: May 2003
Location: Tinton Falls, NJ
Age: 36
Posts: 7,428
Garage
Send a message via AIM to MadMikeyL
Quote:
Originally Posted by T6Rocket View Post
I don't mind spending money on factory parts, but even I wouldn't replace the coils at 72k miles if the plugs are likely the originals. Try a set of factory Motorcraft double platinum plugs and go from there.

Although the car ran fine, my original plugs with 62k looked quite worn. A new set really perked the car up.

Al
I replaced the original spark plugs in m uncle’s 05 Grand Marquis at 230k miles. Platinum plugs with 72k on them likely aren’t worn much, if at all. I would still replace them, but I suspect the coils would be more likely to blame.

-91 Cougar LS, coming soon, complete overhaul with a 427" Windsor.
-90 XR7 5-speed black on black w/sunroof, MP2, coated rotors, double intercooler, 15%OD, ported heads, comp stage 1 cam, 85mm TB, 90MM LMAF, 80# injectors, and ported big valve heads
-98 Mark VIII LSC, Procharger P600b, TR3650 swap and 3.73s.
-90 SC Automatic rustbucket winter beater
-97 Tbird Sport 4.6 Nice weather daily driver
-"Your buddy Mike is INSANE!" -ClintD's dad
MadMikeyL is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the TCCoA Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
2001 towncar...having problems sleepinggt General Tech 2 07-17-2008 07:51 PM
PI Motor swap into 1994 Lincoln Towncar...input wanted. mgawat Engine - 4.6L & 5.4L 1 03-10-2007 07:18 PM
Average mileage for 91 towncar 4.6 zoideraserb Engine - 4.6L & 5.4L 5 03-23-2005 10:21 AM
why does it seem like my friends '86 towncar shifts smoother than my cougar? 30thrulez Drive Train 1 09-03-2002 05:18 PM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome