Best plugs for a 1999 4.6 ? - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
ยป Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Ford Cars and PAG Vehicles > Ford Crown Victoria | Mercury Marauder | Grand Marquis | P71
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto Escrow

Ford Crown Victoria | Mercury Marauder | Grand Marquis | P71 Forum for discussion of the Ford Crown Victoria, Mercury Marauder, Mercury Grand Marquis and P71.

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 02-18-2011, 10:23   #1 (permalink)
Registered User
 
Join Date: Feb 2011
Posts: 13
Best plugs for a 1999 4.6 ?

Since I'll be changing my intake manifold (see previous post), I figure I'll change plugs and wires. What plugs do you other 4.6 owners prefer? Split fire, platinum, copper, iridium? How about brand name and plug wires? Motorcraft?

Thanks in advance.
KevGM is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 02-18-2011, 11:41   #2 (permalink)
2002 F150 XLT
 
Bert's Avatar
 
Join Date: Nov 2008
Location: Oregon
Posts: 9,816
Re: Best plugs for a 1999 4.6 ?

We always use the Platinum Motorcraft or Autolite plugs. Have had trouble with some of the others so we stick with what works. You can get the manifold from Rockauto, one of our sponsors here.
__________________
Bert
Bert is offline   Reply With Quote
Old 02-24-2011, 21:31   #3 (permalink)
Registered User
 
2000GMLS's Avatar
 
Join Date: Jan 2011
Location: Monroe Center, IL
Posts: 142
Re: Best plugs for a 1999 4.6 ?

Anyone ever try E3's? I've been wanting to try those. I usually use Bosch Platinums, or the +4's. Never had any problems with those. Have had the +4's in my '98 V-10 van for over 30k, and it still runs as smooth as silk.

John
__________________
2000 Mercury Grand Marquis LS (Mauarder "Clone") NEW!
1968 Cougar XR-7 302 CI 4bbl
1977 Ford LTD Landau (with fender skirts!) 400 M CI
2000GMLS is offline   Reply With Quote
Old 12-01-2011, 12:03   #4 (permalink)
Registered User
 
Den49's Avatar
 
Join Date: Nov 2011
Posts: 18
Re: Best plugs for a 1999 4.6 ?

Don't know if this thread is still active, but thought I would offer this from my experience with owning a 1999 Crown Vic.

I tried both single and double platinum plugs and found that the single platinum plugs ran better and gave me better fuel economy than the double platinum plugs. I have been told by more than one automotive pro that if the car calls for nickel or single platinum plugs, use them for best performance and fuel economy, rather than double platinum, iridium, etc., because that is what the ignition system was designed to fire. Double platinum, iridium, etc. will last longer but they have higher resistance and require a higher energy ignition to fire them, so they may missfire and give lower fuel economy on a car such as a 1999 Crown Vic that was not designed for them.
Den49 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Ford Cars and PAG Vehicles > Ford Crown Victoria | Mercury Marauder | Grand Marquis | P71



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 09:41.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.