Iridium spark plugs? AND roufgh idle prob - Ranger-Forums - The Ultimate Ford Ranger Resource


General Ford Ranger Discussion General discussion of the Ford Ranger that does not fit in any other sub-forum.

Reply
 
LinkBack Thread Tools Search this Thread
  #1  
Old 06-15-2007
Member
Thread Starter
 
Join Date: Aug 2005
Location: Haverhill, MA
Posts: 1,907
Iridium spark plugs? AND roufgh idle prob

well about 2 years ago i put some autolight plat2 in my truck when it had 80k on her and now i'm up to 120k on the old girl. i have noticed that when in park the truck sounds louder and has a little knock ish to the engine and louder then normal.

i do run seafoam threw it but maybe ill try it again.

and i was wondering has anyone tried the Iridium plugs? i was looking at the Autolight ones? are they good or are they bad? caus i was looking for a smoother idle if possible and a better spark.


Also when i'm sitting at a red light i noticed the rmps would drop to almost die out and i would have to put to newtral and rev it up to keep it running. i normaly clean the MAF every oil change but it has been bad pollen here and engine compartment is all yellow so ill clean again.

but do u think the IAC could do that also? i have never cleaned that out. if so How do i clean it properly?

Thanx
Nick
Reply With Quote
  #2  
Old 06-15-2007
D.
Unregistered User
 
Posts: n/a
Your best bet is a Platinum type of plug.
Your IAC can be cleaned with a can of QD contact or any ' other ' type of electrical cleaner.
Reply With Quote
  #3  
Old 06-15-2007
Member
Thread Starter
 
Join Date: Aug 2005
Location: Haverhill, MA
Posts: 1,907
but are ther any advantages with the iridium spark plugs. i have heard a lot of really good things about them especialy the NGK ones and Denso plugs.

and whats the average life of a spark plug like i have now being a Autolight plat2?
Reply With Quote
  #4  
Old 06-15-2007
RangerEdgeO2's Avatar
Member
 
Join Date: May 2005
Location: Florida
Posts: 247
Quote:
Originally Posted by D.
Your best bet is a Platinum type of plug.
Your IAC can be cleaned with a can of QD contact or any ' other ' type of electrical cleaner.

I agree.

I cleaned my original IAC with brake cleaner and that bought me some more time but it would eventually go back to it's normal "almost stall, rpms drop under 500" symptoms so I eventually tossed it and got a new one.
Reply With Quote
  #5  
Old 06-15-2007
Member
Thread Starter
 
Join Date: Aug 2005
Location: Haverhill, MA
Posts: 1,907
Quote:
Originally Posted by RangerEdgeO2
I agree.

I cleaned my original IAC with brake cleaner and that bought me some more time but it would eventually go back to it's normal "almost stall, rpms drop under 500" symptoms so I eventually tossed it and got a new one.
how much was yours? and how sould you tell if it was dirty? did it have a black layer on the inside of junk?
Reply With Quote
  #6  
Old 06-16-2007
RangerEdgeO2's Avatar
Member
 
Join Date: May 2005
Location: Florida
Posts: 247
Yes, it had this black oily type stuff in there. After cleaniing it, it was nice shiny aluminum like it should be (New one looked exactly like that).

I don't remember how much it costs but I believe $50 or a little under because if it was more then that, I'd pay my $50 co-pay and have them change it out under warranty and I didn't do that so, under $50 lol.
Reply With Quote
  #7  
Old 06-16-2007
mx98ranger's Avatar
Member
 
Join Date: Apr 2005
Location: GA
Posts: 1,493
new iac is like 55 bucks.. its not too bad.i replaced mine several months back
Reply With Quote
  #8  
Old 06-16-2007
D.
Unregistered User
 
Posts: n/a
Iridum plugs are best with boost ( or so I have seen ) , but on a daily driver, your not going to see much better then a cheaper platnium plug.
Reply With Quote
  #9  
Old 06-16-2007
dallas_01gt's Avatar
Member
 
Join Date: Mar 2007
Location: Kansas
Posts: 116
I purchased an IAC from Autozone a couple weeks ago, it was around $45 I think. Although, O'reilly wanted $90 for it.
Reply With Quote
  #10  
Old 06-16-2007
mx98ranger's Avatar
Member
 
Join Date: Apr 2005
Location: GA
Posts: 1,493
^^ gotta love my employee discount
Reply With Quote
  #11  
Old 06-17-2007
Member
Thread Starter
 
Join Date: Aug 2005
Location: Haverhill, MA
Posts: 1,907
lowest i have found was 87$ lol highest was 104 at autozone lol

i just put in new double platnum plugs autolight back in.

after cleaning everything up MAF,IAC,Plugs,Cold air filter, and put on new dielectric greese on all the boots it is running 10x smoother and the rpms seem to be lower.

the old plugs were 40k miles old and there was no carbon on them, but the spark was blasting to the side of the pin wairing away at the metal thing that curls over, also went from .052 to .064. i regaped new to .054 cause it said between .052-.060
Reply With Quote
  #12  
Old 06-21-2007
Member
Thread Starter
 
Join Date: Aug 2005
Location: Haverhill, MA
Posts: 1,907
well to let everyone know i just filled up today for 2.60 per gal and i got 18.7mpg!!!!!!!!!!!!!!!!!!!!!!!!! i was like omg! i new it lasted a lot longer then all the other fill ups lol. just by doing the spark plugs, clean air filter, Maf clean, IAC total clean out and i jumped from 14-15mpg to 18.7mpg wow i was so happy lol.

just wanted to show how happy i was lol
Reply With Quote
  #13  
Old 06-21-2007
mj550's Avatar
Member
 
Join Date: Apr 2006
Location: USA
Posts: 601
I have the autolite xp's and underdog performance wires, Im happy so far!
Reply With Quote
  #14  
Old 06-22-2007
RangerEdgeO2's Avatar
Member
 
Join Date: May 2005
Location: Florida
Posts: 247
Glad your MPG are back up.

FYI: I checked www.fordparts.com For a 3.0 it's $49.74 and for a 4.0 it's 62.51 for a brand new IAC (99 model year)

My local dealer wanted $90 for an IAC for my 3.0. I got it from them for $47 some dollars plus 10 bucks shipping (ordered some other stuff as well).
Reply With Quote
  #15  
Old 06-22-2007
Member
Thread Starter
 
Join Date: Aug 2005
Location: Haverhill, MA
Posts: 1,907
kool i check my dealer and if there still to $ ill order from there. thanx man
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Spark Plugs Wires & Spark Plugs vancouverisland 4.0L OHV & SOHC V6 Tech 8 07-26-2017 12:28 AM
NGK Iridium plugs PW01 4.0L OHV & SOHC V6 Tech 6 11-23-2008 05:05 PM
New Spark Plugs - Better MPG - Halo Plugs SnowWhite 4.0L OHV & SOHC V6 Tech 3 05-29-2007 06:06 AM
spark plugs and wires gatorblue92 2.9L & 3.0L V6 Tech 18 10-04-2005 09:20 PM
Noise supression / shielded spark plugs and wires?? FireRanger General Ford Ranger Discussion 13 11-04-2004 06:34 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
Pingbacks are Off
Refbacks are Off



All times are GMT -6. The time now is 10:06 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.