4.0 v6 1gr-fe detailed spark plug change instructions

spanvs888 · 11-17-2009, 02:45 PM

This is the best write up I have found for changing the spark plugs on this engine. I hope it helps.

http://www.tacomaworld.com/forum/tec...e-1-gr-fe.html

UnionJack · 11-17-2009, 08:07 PM

Great write up, thanks for sharing

The Rusty Gear · 11-24-2009, 12:55 PM

Suuuure. Post this great link a week AFTER I struggle with my plugs

bulldog · 11-24-2009, 01:44 PM

Just did the V8, seems to be easier as you just remove the intake tube between the airbox and throttle body.

Besides get iridium plugs and you are good for 100k+ miles. I belive iridiums are now available for the V6 too.

java230 · 11-24-2009, 08:03 PM

ugh looks like a PITA. i need to do this soon....

java230 · 12-09-2009, 10:26 AM

did my plugs, cleaned my MAF and TB while i was there. not as bad as the write up made it seem.
dont need to remove the air intake in the Pass side, it pushes out of the way just fine. DS is straight foreward once that tube and bracket are removed. took me about 45 mins to do it all. and it was 15 degrees out side.

the plugs are expensive from the dealer 6.xx a pop! but mine were way over due it looked like.

TB was DIRTY! almost a whole micro fiber towel is black.

i did have one prob, i broke a bolt off in the head.... one on the ones that holds the intake assembly down. ill have to get the EZ out out and deal with that this weekend.

JAM07Sport · 12-09-2009, 12:15 PM

Quote:

Originally Posted by bulldog

Just did the V8, seems to be easier as you just remove the intake tube between the airbox and throttle body.

Besides get iridium plugs and you are good for 100k+ miles. I belive iridiums are now available for the V6 too.

How come the owners manual for the V6s say your vehicle is equiped with iridium plugs and should be changed every 30,000 miles. The plugs dont look bad at 30k but it has something to do with the emmisions warranty according to toyota. Any Ideas?

I did NGK the first time and Denso this time never noticed any change in performance. But hte new Denso platnums were 8.99 each.

java230 · 12-09-2009, 12:18 PM

i was under the impression that the iridium wears down? but really have no clue!
the plugs i got from he dealer were iridium denso's. they were 6 something each.

bulldog · 12-09-2009, 12:57 PM

Iridium plugs will last for 100-120k. No idea what the manual says, but the 30k came from the time when there were not iridium plugs available for the V6. Not sure why they haven't updated it yet.

Iridium is specific so it doesn't wear down like platinum, etc.

Marky Mark · 05-22-2010, 03:35 AM

Great illustration for changing plugs, abit time consuming for me. The older models were more easier to install back then. My biggest fear is crosstreading the plugs. I just take my 4runner to the dealer and have it done they say the same every 30,000 miles with genuine plugs not iridiums. $160.00 I'm do for my 3rd change. Should I upgrade to better plugs or stay the same for my 04 runner?

my034runner · 06-04-2010, 03:36 PM

Ed and I just did all of mine a couple of weeks ago at his house. Not all that complicated. Had to move that stupid bracket on the drivers side next to the fire wall.
But once that was gone, no worries!!

The ones we took out were installed @ 30k miles. These new ones went in @77K miles, and the old ones were in such good condition, that I kept them as trail spares. The little carbon that is on them, can just be wiped or brushed away!!!

Ludedude · 06-04-2010, 03:40 PM

I'm due for mine as well according to Brett...

my034runner · 06-04-2010, 03:56 PM

Quote:

Originally Posted by Ludedude

I'm due for mine as well according to Brett...

Not that hard to do......

04jckhmr · 07-01-2010, 01:42 PM

Not to rehash or dig up older posts, but I need to do this as well. Does anyone have part numbers for the plugs they used? And is it worth it to use the iridiums on my V6?

MCL68 · 02-04-2011, 04:08 PM

Well, I'm going to rehash an old thread. I did my plugs today with NGK Iridium IX pt# LFR6AIX-11 were my choice due to their long service life.

I also, cleaned the MAF and TB and dropped in a new OEM air filter.

FYI: It doesn't state anywhere on the NGK box, but do not attempt to adjust the gap with a coin style gapping tool with Iridium spark plugs.You can damage the fine Iridium tip using the coin style gapping tool, either bending or breaking the center electrode.

I checked the gap on all 6 plugs with a wire style gap tool and were all within spec of the factory gap.

Darklight · 08-27-2012, 10:51 AM

MCL68, how is the NGK Iridium plugs working out for you on the V6? I am thinking of using them on my V6 for the 60,000 mile maintencne that is due now.

MCL68 · 08-27-2012, 12:04 PM

Quote:

Originally Posted by Darklight

MCL68, how is the NGK Iridium plugs working out for you on the V6? I am thinking of using them on my V6 for the 60,000 mile maintencne that is due now.

It's been about 19 months since I installed them. I've had no complaints or issues using the Iridium plugs. The truck runs like a champ and the beauty is, I won't have to change plugs anytime soon.

Darklight · 08-27-2012, 12:25 PM

Thanks for the update. I am going to order mine tonight and not worry about having to do them again every 30K

Teotwaki · 08-28-2012, 02:02 PM

I just did my V6's plugs last night and will add the following

It makes life easier to remove the airbox and "L" shaped intake tube. Just loosen the intake tube wire type hose clamp where it fastens to the goofy plastic intake tube that plugs into the firewall.

I also remove the entire intake manifold cover that is held by two cap type nuts and set it aside.

On the driver's side there is a flat black metal bracket that comes up from the engine and bolts to the side of the intake manifold. It is roughly at the back sparkplug area. Remove the top bolt and loosen the lower bolt and you can move it out of the way of the two back spark plugs as you replace them. There is also a sensor plug and hose right there that are easy to unclip and give you more room.

On each plug's threads I apply a little anti-sieze compound.

On the rubber parts of the coil packs I clean the dust off and apply a little high temp silicone grease to ensure a water resistant fit and keep the rubber from drying out.

Darklight · 08-29-2012, 07:10 AM

What gap setting did you use? Thinking of .044 but the book says .043. I can't remember what I gapped them to last time. Maybe .043

11-17-2009, 02:45 PM	#1
spanvs888 Rookie Join Date: Jul 2008 Location: Long Island, NY Posts: 13	4.0 v6 1gr-fe detailed spark plug change instructions This is the best write up I have found for changing the spark plugs on this engine. I hope it helps. http://www.tacomaworld.com/forum/tec...e-1-gr-fe.html

11-17-2009, 08:07 PM	#2
UnionJack Old Timer Join Date: Oct 2007 Location: San Francisco Posts: 4,128	Great write up, thanks for sharing __________________ Jon 08 Taco 4X4 AC.

11-24-2009, 12:55 PM	#3
The Rusty Gear Driver Join Date: Apr 2007 Location: Edmonton, Alberta, Canada Posts: 125	Suuuure. Post this great link a week AFTER I struggle with my plugs __________________ The Teacher: 1988 4Runner w/ 32" Super Swamper TSL's The Student: 2007 4Runner Now with MODS!* *3" OME lift w / P285 55 r16 Trxus MT and a SW bumper w/ Warn M9000

11-24-2009, 01:44 PM	#4
bulldog Admin Join Date: May 2005 Location: Morgan Hill, CA Posts: 12,291	Just did the V8, seems to be easier as you just remove the intake tube between the airbox and throttle body. Besides get iridium plugs and you are good for 100k+ miles. I belive iridiums are now available for the V6 too. __________________ andries K9BDG 03 pavement princess 06 toaster

12-09-2009, 12:57 PM	#9
bulldog Admin Join Date: May 2005 Location: Morgan Hill, CA Posts: 12,291	Iridium plugs will last for 100-120k. No idea what the manual says, but the 30k came from the time when there were not iridium plugs available for the V6. Not sure why they haven't updated it yet. Iridium is specific so it doesn't wear down like platinum, etc. __________________ andries K9BDG 03 pavement princess 06 toaster

11-24-2009, 08:03 PM	#5
java230 Old Timer Join Date: Mar 2009 Location: Seattle, WA Posts: 2,098	ugh looks like a PITA. i need to do this soon....

12-09-2009, 10:26 AM	#6
java230 Old Timer Join Date: Mar 2009 Location: Seattle, WA Posts: 2,098	did my plugs, cleaned my MAF and TB while i was there. not as bad as the write up made it seem. dont need to remove the air intake in the Pass side, it pushes out of the way just fine. DS is straight foreward once that tube and bracket are removed. took me about 45 mins to do it all. and it was 15 degrees out side. the plugs are expensive from the dealer 6.xx a pop! but mine were way over due it looked like. TB was DIRTY! almost a whole micro fiber towel is black. i did have one prob, i broke a bolt off in the head.... one on the ones that holds the intake assembly down. ill have to get the EZ out out and deal with that this weekend.

12-09-2009, 12:18 PM	#8
java230 Old Timer Join Date: Mar 2009 Location: Seattle, WA Posts: 2,098	i was under the impression that the iridium wears down? but really have no clue! the plugs i got from he dealer were iridium denso's. they were 6 something each.

05-22-2010, 03:35 AM	#10
Marky Mark Rookie Join Date: May 2010 Posts: 15	Great illustration for changing plugs, abit time consuming for me. The older models were more easier to install back then. My biggest fear is crosstreading the plugs. I just take my 4runner to the dealer and have it done they say the same every 30,000 miles with genuine plugs not iridiums. $160.00 I'm do for my 3rd change. Should I upgrade to better plugs or stay the same for my 04 runner? __________________ 04 toyota 4runner sport V6 06 toyota 4runner sr5 V6 04 nissan frontier Crewcab V6

06-04-2010, 03:36 PM	#11
my034runner Toy120 Uber Mod Join Date: Nov 2005 Location: Las Vegas, NV Posts: 6,477	Ed and I just did all of mine a couple of weeks ago at his house. Not all that complicated. Had to move that stupid bracket on the drivers side next to the fire wall. But once that was gone, no worries!! The ones we took out were installed @ 30k miles. These new ones went in @77K miles, and the old ones were in such good condition, that I kept them as trail spares. The little carbon that is on them, can just be wiped or brushed away!!! __________________ NVTTORA Prez..My034runner: DR/ICON coil overs, Icon 2.5 resis in the rear, custom coil springs, AllPro sliders, BudBuilt skids, KurtFab Lower links, AllPro Upper links, WabFab endlinks, Blackout safari rack, FourTreks HiLift mounts, 285/75/16 BFG's Ko's, MagnaFlow exhaust, Optima Blue&Red top, ShrockWorks bumper, MileMarkerE9000 winch, Engel MT-60 fridge, Sirius, Garmin60 Csx, Factory nav etc...

06-04-2010, 03:40 PM	#12
Ludedude Super Moderator Join Date: Jul 2009 Location: DM26LB Posts: 1,581	I'm due for mine as well according to Brett... __________________ '16 Quicksand Tundra TRD PRO '08 Salsa Red Pearl 4x4Runner SE V6: Gone but not forgotten

07-01-2010, 01:42 PM	#14
04jckhmr Driver Join Date: Apr 2010 Location: CT Posts: 298	Not to rehash or dig up older posts, but I need to do this as well. Does anyone have part numbers for the plugs they used? And is it worth it to use the iridiums on my V6? __________________ Jay 2004 Galactic Gray T4R SR5 V6 4x4\| Eclipse 5030 HU\| CDT components\| ScanGuage II\| Cobra 75WSXT CB\| Wilson Lil Wil Antenna\| Defiant Light bar\| (4) Hella 500FF Driving Lights\|OME 3" lift\| RB 1.5" Body Lift\| 1.5" Poly Performance Wheel spacers\| 285/70/17 Treadwright Guard Dogs. -SOLD 2013 Taco TRD Sport V6 4x4\| Cobra 75WSXT CB\| Wilson Lil Wil\| Scanguage II\| SCS F5 Wheels

02-04-2011, 04:08 PM	#15
MCL68 Super Moderator Join Date: Feb 2009 Location: Bay Area, CA Posts: 2,801	Well, I'm going to rehash an old thread. I did my plugs today with NGK Iridium IX pt# LFR6AIX-11 were my choice due to their long service life. I also, cleaned the MAF and TB and dropped in a new OEM air filter. FYI: It doesn't state anywhere on the NGK box, but do not attempt to adjust the gap with a coin style gapping tool with Iridium spark plugs.You can damage the fine Iridium tip using the coin style gapping tool, either bending or breaking the center electrode. I checked the gap on all 6 plugs with a wire style gap tool and were all within spec of the factory gap. __________________ Mark 2007 4Runner Limited 4WD (Sold) Build Thread

08-27-2012, 10:51 AM	#16
Darklight Old Timer Join Date: May 2010 Location: Charlotte,NC Posts: 1,778	MCL68, how is the NGK Iridium plugs working out for you on the V6? I am thinking of using them on my V6 for the 60,000 mile maintencne that is due now. __________________ 2008 Black 4X4Runner SR5 V6, Total Chaos Race series 2" plus kit, King 700 lbs LT coilovers & MetalTech stage 5 LT rear, 315/75R16 KM2, Strike 6 16x8.5 -6 wheels , Demello offroad 3 hoop, 4X4Labs rear, ATO, RCI ,BudBuilt, Stubbs sliders, 4Crawler B/L 3/4", DynoMax , K&N , Speski barrier, sPOD, ARB CKM12, ARB locker front/rear 4.56 gears WMW roof rack Darklight's Build

08-27-2012, 12:25 PM	#18
Darklight Old Timer Join Date: May 2010 Location: Charlotte,NC Posts: 1,778	Thanks for the update. I am going to order mine tonight and not worry about having to do them again every 30K __________________ 2008 Black 4X4Runner SR5 V6, Total Chaos Race series 2" plus kit, King 700 lbs LT coilovers & MetalTech stage 5 LT rear, 315/75R16 KM2, Strike 6 16x8.5 -6 wheels , Demello offroad 3 hoop, 4X4Labs rear, ATO, RCI ,BudBuilt, Stubbs sliders, 4Crawler B/L 3/4", DynoMax , K&N , Speski barrier, sPOD, ARB CKM12, ARB locker front/rear 4.56 gears WMW roof rack Darklight's Build

08-28-2012, 02:02 PM	#19
Teotwaki Adventurer Join Date: May 2006 Posts: 2,714	I just did my V6's plugs last night and will add the following It makes life easier to remove the airbox and "L" shaped intake tube. Just loosen the intake tube wire type hose clamp where it fastens to the goofy plastic intake tube that plugs into the firewall. I also remove the entire intake manifold cover that is held by two cap type nuts and set it aside. On the driver's side there is a flat black metal bracket that comes up from the engine and bolts to the side of the intake manifold. It is roughly at the back sparkplug area. Remove the top bolt and loosen the lower bolt and you can move it out of the way of the two back spark plugs as you replace them. There is also a sensor plug and hose right there that are easy to unclip and give you more room. On each plug's threads I apply a little anti-sieze compound. On the rubber parts of the coil packs I clean the dust off and apply a little high temp silicone grease to ensure a water resistant fit and keep the rubber from drying out. __________________ Jim My Adventure Blog: "Sun To The North" '05 SR5 4WD V6 HQ sliders, OW Suspension, LT265/75/R16C Duratracs, rear diff. breather, ScanGauge II, Garmin 276C, Engel 45 fridge, All-Pro LCAs, TC A-Arm Skids, dual batteries, Downey skid plate, Cyclone pre-filter, ARB Compressor & Rear Locker!! Offroad Trailer Photos http://www.toyota120.com/forum/showthread.php?t=1237

08-29-2012, 07:10 AM	#20
Darklight Old Timer Join Date: May 2010 Location: Charlotte,NC Posts: 1,778	What gap setting did you use? Thinking of .044 but the book says .043. I can't remember what I gapped them to last time. Maybe .043 __________________ 2008 Black 4X4Runner SR5 V6, Total Chaos Race series 2" plus kit, King 700 lbs LT coilovers & MetalTech stage 5 LT rear, 315/75R16 KM2, Strike 6 16x8.5 -6 wheels , Demello offroad 3 hoop, 4X4Labs rear, ATO, RCI ,BudBuilt, Stubbs sliders, 4Crawler B/L 3/4", DynoMax , K&N , Speski barrier, sPOD, ARB CKM12, ARB locker front/rear 4.56 gears WMW roof rack Darklight's Build

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