PT Cruiser Forum  
Advertisements
       

Go Back   PT Cruiser Forum > 2.4L Turbo Forums > Turbo Performance

PT Cruiser Forum

Advertisements
Replacing Spark Plugs in GT

 
Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 11 May 2006, 12:23 pm
Fresh Cruiser
 
Join Date: Mar 2006
Location: Carlsbad, CA, USA.
Posts: 10
Default Replacing Spark Plugs in GT

I have a stock '03 GT. I am getting ready to replace the plugs and wires with NGK IX Iridiums and FireWires. It looks pretty tight - can it be done without removing any additional pieces? The procedure posted on PTCruizer seems to be for non-GTs. Any advice from experience? Also, I'm trying to decide what the best gap should be for the NGKs - .040, .045, factory .052, none of the above? Any help would be much appreciated.
Reply With Quote
  #2 (permalink)  
Old 11 May 2006, 01:39 pm
Fanatic Cruiser
 
Join Date: Jan 2004
Location: louisville, kentucky, USA.
Posts: 658
Default

You do not have to remove the intake. You will be able to remove the plugs.
Reply With Quote
  #3 (permalink)  
Old 11 May 2006, 02:13 pm
quicksilverdon's Avatar
Obsessed Cruiser
 
Join Date: Nov 2003
Location: Felton, Delaware
Posts: 20,501
Default

Welcome to the forums.
Nothing needs to be removed - except the plastic piece at the throttle (it clips). I used a universal on the plug socket - made it easier. Did my daughter's '03 GT in about 20 minutes, going slow and careful.
Consensus is for smaller gaps - I've read many use 0.028 (specially those that went to Stage 1), and even Chrysler put out a TSB revising stock to 0.040 - I went with 0.038, and all is fine.
Use a dab of anti-seize on plug threads, and coat plug boots with dielectric grease, you'll be surprised how hard it is to pull the old plug wires out.
One more thing - takes a good bit of force to seat the wires right - on plug and coil end - you'll feel a click..
__________________
"Anti-intellectualism has been a constant thread winding its way through our political and cultural life,
nurtured by the false notion that democracy means that 'my ignorance is just as good as your knowledge."
Isaac Asimov"

'05 Limited Turbo Lite, (Silver, of course)4-wheel ABS, Sunroof, Spoiler. Mods: E&G Classic grill, K&N FIPK, BTG duals, rear lowered 1.5", LED washer lights, $20 catch can, Aoogah horn, Weatherflectors, Sunroof Deflector, Fuzzy Dice, rear logo flames, rear pinstripe graphic, Gen3 Taillights, rear sway bar, hood struts, Strut bar.
Traded in '02 Silver Touring Edition w/87,000 miles
Reply With Quote
  #4 (permalink)  
Old 12 May 2006, 03:42 pm
Fresh Cruiser
 
Join Date: Mar 2006
Location: Carlsbad, CA, USA.
Posts: 10
Default

Thanks for the advice, guys! I'll give it a shot this weekend.
Quote:
quote:Originally posted by rottone

I have a stock '03 GT. I am getting ready to replace the plugs and wires with NGK IX Iridiums and FireWires. It looks pretty tight - can it be done without removing any additional pieces? The procedure posted on PTCruizer seems to be for non-GTs. Any advice from experience? Also, I'm trying to decide what the best gap should be for the NGKs - .040, .045, factory .052, none of the above? Any help would be much appreciated.
__________________
\'03 Purple GT AutoStick (cloth seats, no sunroof-max headroom),
Crane FireWires, NGK IX iridium plugs, K&N drop-in airfilter, removed airbox silencers, wood dash trim, chrome wheels/grille/door spears/backup lights/tailight trim, fuzzy dice.
Reply With Quote
  #5 (permalink)  
Old 13 May 2006, 07:24 am
Fanatic Cruiser
 
Join Date: Jan 2004
Location: louisville, kentucky, USA.
Posts: 658
Default

Again I will say...The TSB that was put out is for the NON TURBO Engine only....
Reply With Quote
  #6 (permalink)  
Old 13 May 2006, 10:53 am
Fresh Cruiser
 
Join Date: Mar 2006
Location: Carlsbad, CA, USA.
Posts: 10
Default

So, what has worked best for people with NGKs on a stage 0 GT? I have seen everything from factory .052 to .028 discussed. If I go .040, is there any downside compared to .052?
Quote:
quote:Originally posted by rottone

I have a stock '03 GT. I am getting ready to replace the plugs and wires with NGK IX Iridiums and FireWires. It looks pretty tight - can it be done without removing any additional pieces? The procedure posted on PTCruizer seems to be for non-GTs. Any advice from experience? Also, I'm trying to decide what the best gap should be for the NGKs - .040, .045, factory .052, none of the above? Any help would be much appreciated.
__________________
\'03 Purple GT AutoStick (cloth seats, no sunroof-max headroom),
Crane FireWires, NGK IX iridium plugs, K&N drop-in airfilter, removed airbox silencers, wood dash trim, chrome wheels/grille/door spears/backup lights/tailight trim, fuzzy dice.
Reply With Quote
  #7 (permalink)  
Old 13 May 2006, 11:26 am
Cool Cruiser
 
Join Date: Sep 2004
Location: .
Posts: 271
Default

I found that my 03 GT had the best all around performance with the NGK 2315 (LZTRA6AIX-13) gapped at .045. I tested in increments from .052 to .035. I just changed plugs for the hell of it after putting 17,000 miles on the iridium plugs I put in the NGK V power (4306, LZTR5A-13), and there was a loss in performance, both were gapped at .045. I had 2 sets of 4306 plugs, but had to order more iridiums which I will be installing shortly. Two heat ranges cooler seems to agree with my turbo, and the iridiums last a lot longer!
[?]
Reply With Quote
  #8 (permalink)  
Old 13 May 2006, 12:02 pm
Fanatic Cruiser
 
Join Date: Jan 2004
Location: louisville, kentucky, USA.
Posts: 658
Default

You say you had a loss of performance...Did you actually dyno the engine to compare or is this just a "Feel" you have. i find it hard to believe that if the spark plug is firing correctly that there would be a loss in performance with the NGK V groove plug....
[8]I
Reply With Quote
  #9 (permalink)  
Old 13 May 2006, 01:42 pm
Cool Cruiser
 
Join Date: Sep 2004
Location: .
Posts: 271
Default

There was less pull especially at 80 MPH. Before if I touched the throttle while doing 80 MPH she pulled hard and quick to 90 + MPH, with the 4306 although smooth it's just not there.Off the line is smooth with 4306, but just doesn't pull as hard under the same throttle pressure or position, and there is no indication of missing.All I can say is my PT seems to like the iridium plugs much better and 2 ranges cooler than stock. The iridiums with 17,000 miles pulled harder than fresh V Powers.Funny that sparkplugs.com only show the heat range "5" for PT Turbo and SRT-4,but don't show the heat range "6" that I use which seems ideal.
Reply With Quote
  #10 (permalink)  
Old 15 May 2006, 02:20 pm
Fresh Cruiser
 
Join Date: Mar 2006
Location: Carlsbad, CA, USA.
Posts: 10
Default

Well, I replaced the plugs and wires, gapped at .040. It is much smoother, but there seems to be less power so I will try regapping to .045 or .052 when I have a chance. However, I noticed motor oil on the threads of all the plugs I removed, and could see some oil on the spark plug holes. Is this normal? If not, what kind of problem is likely and is it covered by the 70,000 mi powertrain warranty? The car only has 35,000 miles (outside the bumper to bumper).
Quote:
quote:Originally posted by rottone

I have a stock '03 GT. I am getting ready to replace the plugs and wires with NGK IX Iridiums and FireWires. It looks pretty tight - can it be done without removing any additional pieces? The procedure posted on PTCruizer seems to be for non-GTs. Any advice from experience? Also, I'm trying to decide what the best gap should be for the NGKs - .040, .045, factory .052, none of the above? Any help would be much appreciated.
__________________
\'03 Purple GT AutoStick (cloth seats, no sunroof-max headroom),
Crane FireWires, NGK IX iridium plugs, K&N drop-in airfilter, removed airbox silencers, wood dash trim, chrome wheels/grille/door spears/backup lights/tailight trim, fuzzy dice.
Reply With Quote
Reply


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


Similar Threads
Thread Thread Starter Forum Replies Last Post
spark plugs ote69 Turbo Performance 28 11 Jul 2010 09:59 am
E3 Spark Plugs CREWZIN Tech & Performance Forum 6 11 Dec 2004 01:03 pm
Spark plugs: newbie question Edwin Astacio Tech & Performance Forum 12 01 Nov 2004 12:21 pm
ZEX Spark Plugs Jerry Tech & Performance Forum 9 27 May 2004 07:32 pm
Ignition Questions....need help. spark plugs ptcruzin42 Tech & Performance Forum 5 15 Mar 2004 08:39 pm


All times are GMT -5. The time now is 09:20 pm.




Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.
vB.Sponsors