FINALLY Changed out Spark plugs and more - Ranger-Forums - The Ultimate Ford Ranger Resource


4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

Reply
 
LinkBack Thread Tools Search this Thread
  #1  
Old 10-17-2011
dixie_boysles's Avatar
Member
Thread Starter
iTrader: (1)
 
Join Date: Jul 2006
Location: NC
Posts: 3,778
FINALLY Changed out Spark plugs and more

Well I FINALLY got around to changing my plugs and wires. I bought them in May and still hadnt changed them out because i knew hiw much trouble they were to change in the 4.0 SOHC. I boutht the truck at 25k mikes and assumed they had never been changed. Well i was wrong, they had STUPID Bosch plugs in it. I hate bosch plugs. I put Motorcraft Platinum plugs back in her.

While I was at it, i cleaned the IAC as well as the MAF sensor. Needless to say the truck runs a ton better and seems to havr its "getup and go" back. The IAC was nasty and i mean nasty.







So as you can see they were all nasty. Im at 89k now.
Attached Thumbnails
FINALLY Changed out Spark plugs and more-a6b50227-3f45-e1a7.jpg   FINALLY Changed out Spark plugs and more-a6b5022f-3f32-590d.jpg   FINALLY Changed out Spark plugs and more-a6b5023a-3f5d-5d7a.jpg  
Reply With Quote
  #2  
Old 10-17-2011
04RangerDave's Avatar
JDM> RANGER

iTrader: (3)
 
Join Date: Jul 2010
Location: RI
Posts: 5,030
Holy crap that's filthy i should clean mine. 125k
Reply With Quote
  #3  
Old 10-17-2011
dixie_boysles's Avatar
Member
Thread Starter
iTrader: (1)
 
Join Date: Jul 2006
Location: NC
Posts: 3,778
look there isnt even a diode (or whatever its called) on the dang plugs.. i effing hate Bosch plugs
Reply With Quote
  #4  
Old 10-17-2011
04RangerDave's Avatar
JDM> RANGER

iTrader: (3)
 
Join Date: Jul 2010
Location: RI
Posts: 5,030
Quote:
Originally Posted by dixie_boysles View Post
look there isnt even a diode (or whatever its called) on the dang plugs.. i effing hate Bosch plugs
Close. Center Electrode. I hope you fixed you problem. That gap looks huge.
Reply With Quote
  #5  
Old 10-17-2011
dixie_boysles's Avatar
Member
Thread Starter
iTrader: (1)
 
Join Date: Jul 2006
Location: NC
Posts: 3,778
I have the new gap at 0.054 inches per the owners manual. It said to put them at .052-.056, so I put in the middle of that
Reply With Quote
  #6  
Old 10-17-2011
04RangerDave's Avatar
JDM> RANGER

iTrader: (3)
 
Join Date: Jul 2010
Location: RI
Posts: 5,030
She must run like new!
Reply With Quote
  #7  
Old 10-17-2011
dixie_boysles's Avatar
Member
Thread Starter
iTrader: (1)
 
Join Date: Jul 2006
Location: NC
Posts: 3,778
Runs a TON better!!
Reply With Quote
  #8  
Old 10-17-2011
RLong31's Avatar
The Ban Hammer
iTrader: (5)
 
Join Date: Jul 2009
Location: Monrovia, IN
Posts: 2,629
About time Scott, lol. Bosch plugs blow... motorcraft all the way. I thought doing the plugs was easy... but I'm body lifted.. I just went through the wheel wells.... super easy that way. I was pretty surprised how easy it was.
Reply With Quote
  #9  
Old 10-17-2011
dixie_boysles's Avatar
Member
Thread Starter
iTrader: (1)
 
Join Date: Jul 2006
Location: NC
Posts: 3,778
Quote:
Originally Posted by RLong31 View Post
About time Scott, lol. Bosch plugs blow... motorcraft all the way. I thought doing the plugs was easy... but I'm body lifted.. I just went through the wheel wells.... super easy that way. I was pretty surprised how easy it was.
I went through the wheel wells as well, body lifted makes all the difference lol. it wasnt too bad, but bad enough haha. It made it easier with two people though. The IAC was a breeze!
Reply With Quote
  #10  
Old 10-17-2011
zabeard's Avatar
who?
iTrader: (8)
 
Join Date: Nov 2004
Location: IN
Posts: 26,045
motorcraft plugs are by far the best.

im glad its running better for you.
Reply With Quote
  #11  
Old 10-17-2011
FULLSCALE's Avatar
Level III Supporter

iTrader: (12)
 
Join Date: Mar 2009
Location: Clinton, Ontario
Posts: 8,181
I need to do the same... been putting it off far too long!
Reply With Quote
  #12  
Old 01-08-2012
Ranger4.0XLT's Avatar
Member
 
Join Date: Sep 2011
Location: Northford, CT
Posts: 501
Damnit. I just bought Bosch plugs and was looking for a thread on how to change them on a 4.0 SOHC because it looks like it's going to be a B&#[email protected] Why are they so bad? I bought Bosch Platinum +4's. part # 4458.
Reply With Quote
  #13  
Old 01-08-2012
djfllmn's Avatar
Moderator
 
Join Date: Mar 2009
Location: York, PA
Posts: 5,796
Quote:
Originally Posted by Ranger4.0XLT View Post
Damnit. I just bought Bosch plugs and was looking for a thread on how to change them on a 4.0 SOHC because it looks like it's going to be a B&#[email protected] Why are they so bad? I bought Bosch Platinum +4's. part # 4458.
fords usually dont like anything other than autolite/motorcraft (same thing)
Reply With Quote
  #14  
Old 01-08-2012
Kris03's Avatar
Member
 
Join Date: Jun 2011
Location: glastonbury, ct
Posts: 1,236
Thats what i read. I put ngk iridiums in n so far there playing nice. If u question it jus stick to.motorcraft finewires
Reply With Quote
  #15  
Old 01-22-2012
Member
 
Join Date: Jan 2012
Location: Ray, MI
Posts: 3
what is the ica or the lca that you cleaned with the mas air sensor.I have a 03 ranger 4x4 fx4 with 117,230 miles on it.When it is damp out side it wants to cut in and out at a steedy speed between 30-55mph.
Reply With Quote
  #16  
Old 01-22-2012
Ford04Ranger4.0's Avatar
Member
 
Join Date: Dec 2008
Location: Plattsburgh, New York
Posts: 3,390
Quote:
Originally Posted by bigjohnny40 View Post
what is the ica or the lca that you cleaned with the mas air sensor.I have a 03 ranger 4x4 fx4 with 117,230 miles on it.When it is damp out side it wants to cut in and out at a steedy speed between 30-55mph.
Idle Air Control. I would do a full tune up on your truck.

Plugs
Wires
Fuel filter
Clean MAF
Clean IAC
Reply With Quote
  #17  
Old 01-23-2012
Coleosis85's Avatar
Member
 
Join Date: Aug 2009
Location: OKC, Ok
Posts: 439
IVe used bosch and NGK in my truck... The only thing about bosch is you need to change them out when recommended because IMO (and most other people's opinion) they are not as high quality as motorcraft, so there is more chance of failure when they've outlived their suggested life span.


I had my NGK's in for 10k miles and the only time my truck ran like crap was when I had to put ethanol gas in it...
Reply With Quote
  #18  
Old 01-23-2012
Scrambler82's Avatar
Old Guy User… ltr
iTrader: (12)
 
Join Date: Jul 2009
Location: SoCal
Posts: 6,777
Quote:
Originally Posted by Ranger4.0XLT View Post
Damnit. I just bought Bosch plugs and was looking for a thread on how to change them on a 4.0 SOHC because it looks like it's going to be a B&#[email protected] Why are they so bad? I bought Bosch Platinum +4's. part # 4458.
It’s a b!tch because Ford wants you to bring it to them… one of Ford other better ideas.

Quote:
Originally Posted by djfllmn View Post
fords usually dont like anything other than Autolite/motorcraft (same thing)
Always Motorcraft, Plugs/Filters/Anything with a Motorcraft Name on it.
Reply With Quote
  #19  
Old 01-23-2012
dixie_boysles's Avatar
Member
Thread Starter
iTrader: (1)
 
Join Date: Jul 2006
Location: NC
Posts: 3,778
Quote:
Originally Posted by Ranger4.0XLT View Post
Damnit. I just bought Bosch plugs and was looking for a thread on how to change them on a 4.0 SOHC because it looks like it's going to be a B&#[email protected] Why are they so bad? I bought Bosch Platinum +4's. part # 4458.
Take them back
Reply With Quote
  #20  
Old 02-25-2012
Member
 
Join Date: Feb 2012
Location: VA
Posts: 23
So I see people saying that a 'full tuneup' is needed, but only rarely find explanations as to what a full tuneup is. Other than plugs and wires, what else would should I do?
Reply With Quote
  #21  
Old 02-25-2012
PSIJOE's Avatar
Member
 
Join Date: Nov 2011
Location: Sacramento, CA
Posts: 1,311
I've been lazy and need to get on this too. I'm waiting till my clutch is almost gone. Then when I replace it plus the tune up, hopefully it will be a whole new truck. lol Hopefully give me at least the same consistent power all the time. Right now sometimes the truck will feel super sluggish. Then other times it will feel pretty quick. I hate it.
Reply With Quote
  #22  
Old 02-25-2012
Ranger4.0XLT's Avatar
Member
 
Join Date: Sep 2011
Location: Northford, CT
Posts: 501
Maybe a coil too. I am going to get a new one soon.
Reply With Quote
  #23  
Old 02-26-2012
klc317's Avatar
Member
 
Join Date: Sep 2006
Location: Cincinnati, OH
Posts: 950
I put the autolite equivalent to the motorcraft plugs in my '03 4.0 last summer. Same thing, just couldn't find a dealer or parts store around that had all 6 in stock without driving all over the city. Replaced the plug wires at the same time with Motorcraft wires. neither had ever been changed, '03 with now 63,000 miles.
Reply With Quote
  #24  
Old 02-26-2012
Danger06Ranger's Avatar
Member
iTrader: (-1)
 
Join Date: Apr 2008
Location: Lowell, IN
Posts: 620
Why change the plugs at 25k? I pulled mine out at 45k. they specced out like a new plug.
Reply With Quote
  #25  
Old 02-26-2012
djfllmn's Avatar
Moderator
 
Join Date: Mar 2009
Location: York, PA
Posts: 5,796
i changed mine at 55K
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
Spark Plugs changed and PVC Valve how to with pics klc317 4.0L OHV & SOHC V6 Tech 14 05-15-2012 02:57 PM
Changed spark plugs = MISFIRE Wilbrod General Technical & Electrical 14 10-15-2010 11:44 AM
New Spark Plugs - Better MPG - Halo Plugs SnowWhite 4.0L OHV & SOHC V6 Tech 3 05-29-2007 06:06 AM
Changed the spark plugs nbro3232 2.9L & 3.0L V6 Tech 2 12-30-2006 03:17 PM


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 10:37 PM.


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.