User Tag List

Reply
 
Thread Tools Rate Thread Display Modes
Old 06-19-2021, 10:08 PM #1
bill444 bill444 is offline
Junior Member
 
Join Date: Oct 2019
Location: Florida
Posts: 22
bill444 is on a distinguished road
bill444 bill444 is offline
Junior Member
 
Join Date: Oct 2019
Location: Florida
Posts: 22
bill444 is on a distinguished road
2003 V6 Original Spark Plugs

Hello,

Changed my plugs today. They appear to be the original NGK (passenger side) and Denso (drivers side) plugs and I just changed them at 70,000 miles on my 2003 SR5 V6.

I was having an issue where the engine seemed to stutter but never stall at idle on occasion. No codes and it really has been running well the past few months I have owned it.

Side note: I did just recently get an oil analysis back and there's no coolant in the oil. So, I was thinking I may be lucky so far in terms of no head gasket leak. Blackstone report was actually pretty good. No oil loss over 5K miles. No coolant loss.

What do you guys think of these pictures?

Thanks

Bill







Last edited by bill444; 06-19-2021 at 11:02 PM. Reason: Fixed pictures
bill444 is offline   Reply With QuoteReply With Quote
Old 06-20-2021, 12:49 AM #2
montijo505's Avatar
montijo505 montijo505 is offline
Senior Member
 
Join Date: May 2014
Location: Rio Rancho, New Mexico
Posts: 2,016
montijo505 has much to be proud of montijo505 has much to be proud of montijo505 has much to be proud of montijo505 has much to be proud of montijo505 has much to be proud of montijo505 has much to be proud of montijo505 has much to be proud of montijo505 has much to be proud of montijo505 has much to be proud of
montijo505 montijo505 is offline
Senior Member
montijo505's Avatar
 
Join Date: May 2014
Location: Rio Rancho, New Mexico
Posts: 2,016
montijo505 has much to be proud of montijo505 has much to be proud of montijo505 has much to be proud of montijo505 has much to be proud of montijo505 has much to be proud of montijo505 has much to be proud of montijo505 has much to be proud of montijo505 has much to be proud of montijo505 has much to be proud of
Those suckers needed changed. Did the idle smooth out? I would clean the MAF and throttle body as well.


Sent from my iPhone using Tapatalk
montijo505 is offline   Reply With QuoteReply With Quote
Old 06-20-2021, 08:21 AM #3
rwh963 rwh963 is offline
Member
 
Join Date: May 2017
Location: MA
Posts: 341
rwh963 will become famous soon enough
rwh963 rwh963 is offline
Member
 
Join Date: May 2017
Location: MA
Posts: 341
rwh963 will become famous soon enough
i think you should sell me that 4runner!
rwh963 is offline   Reply With QuoteReply With Quote
Old 06-20-2021, 09:03 AM #4
bill444 bill444 is offline
Junior Member
 
Join Date: Oct 2019
Location: Florida
Posts: 22
bill444 is on a distinguished road
bill444 bill444 is offline
Junior Member
 
Join Date: Oct 2019
Location: Florida
Posts: 22
bill444 is on a distinguished road
Quote:
Originally Posted by montijo505 View Post
Those suckers needed changed. Did the idle smooth out? I would clean the MAF and throttle body as well.
The throttle body was pretty dirty but honestly I can't tell that cleaning it made a difference. I am still getting RPMs well over 1,000 when starting it up. I can shift to D and back to park to get it into the 800s.

When making room to get the plugs out, I did notice a hose (ventilation hose #1?) is split on the end and the clamps are very loose. I can't find anything about it in the shop manual but assume it has to do with the PCV system. So, I will go get this today.

Quote:
Originally Posted by rwh963 View Post
i think you should sell me that 4runner!
I'm going to be a sad person when the time comes. I hate putting miles on it. It's only a 2WD though so hopefully I can keep it going for regular driving. I'll never find one like this again. Was under $10K from a Toyota dealership but those were fall 2020 prices. So far the biggest expense was the transmission pan leaking but the fluid was good and I got that tested with Blackstone too.

I am just surprised to find the NGK and Denso combo after this amount of time. It's nearly 20 years old at this point.
bill444 is offline   Reply With QuoteReply With Quote
Old 06-20-2021, 09:43 AM #5
Buckaroo's Avatar
Buckaroo Buckaroo is offline
Member
 
Join Date: Jun 2011
Location: Lewis Center, OH
Posts: 419
Buckaroo is on a distinguished road
Buckaroo Buckaroo is offline
Member
Buckaroo's Avatar
 
Join Date: Jun 2011
Location: Lewis Center, OH
Posts: 419
Buckaroo is on a distinguished road
I would replace that hose first and any vacuum hoses that have cracks. If that doesn't do it, then I would pull the IAC (Idle Air Control) valve and clean it. You can replace it but I would clean it first - may well solve the problem. Would replace with Toyota part if necessary. It does sound like an IAC issue to me.
__________________
2002 & 2017 XLE Camry
2004 Honda Accord
2005 T4R Limited V6
2010 Mazda MX-5 Touring
2017 Tundra Limited DC 5.7L TRD 4WD

Last edited by Buckaroo; 06-20-2021 at 09:46 AM.
Buckaroo is offline   Reply With QuoteReply With Quote
Old 06-20-2021, 10:03 AM #6
bill444 bill444 is offline
Junior Member
 
Join Date: Oct 2019
Location: Florida
Posts: 22
bill444 is on a distinguished road
bill444 bill444 is offline
Junior Member
 
Join Date: Oct 2019
Location: Florida
Posts: 22
bill444 is on a distinguished road
Quote:
Originally Posted by Buckaroo View Post
I would replace that hose first and any vacuum hoses that have cracks. If that doesn't do it, then I would pull the IAC (Idle Air Control) valve and clean it. You can replace it but I would clean it first - may well solve the problem. Would replace with Toyota part if necessary. It does sound like an IAC issue to me.
Thank you. I did not know to check the IAC.
bill444 is offline   Reply With QuoteReply With Quote
Old 06-20-2021, 10:23 AM #7
AuSeeker AuSeeker is offline
Senior Member
 
Join Date: Nov 2016
Location: Bluffton S.C.
Posts: 3,587
Real Name: Skip
AuSeeker has much to be proud of AuSeeker has much to be proud of AuSeeker has much to be proud of AuSeeker has much to be proud of AuSeeker has much to be proud of AuSeeker has much to be proud of AuSeeker has much to be proud of AuSeeker has much to be proud of
AuSeeker AuSeeker is offline
Senior Member
 
Join Date: Nov 2016
Location: Bluffton S.C.
Posts: 3,587
Real Name: Skip
AuSeeker has much to be proud of AuSeeker has much to be proud of AuSeeker has much to be proud of AuSeeker has much to be proud of AuSeeker has much to be proud of AuSeeker has much to be proud of AuSeeker has much to be proud of AuSeeker has much to be proud of
Quote:
Originally Posted by Buckaroo View Post
I would replace that hose first and any vacuum hoses that have cracks. If that doesn't do it, then I would pull the IAC (Idle Air Control) valve and clean it. You can replace it but I would clean it first - may well solve the problem. Would replace with Toyota part if necessary. It does sound like an IAC issue to me.
On 4th Gens 4Runners isn't the Idle Air Control valve integrated into the throttle body and not removable/replaceable as it was in earlier models?
__________________
2004 Limited V8
AuSeeker is offline   Reply With QuoteReply With Quote
Old 06-20-2021, 12:57 PM #8
bill444 bill444 is offline
Junior Member
 
Join Date: Oct 2019
Location: Florida
Posts: 22
bill444 is on a distinguished road
bill444 bill444 is offline
Junior Member
 
Join Date: Oct 2019
Location: Florida
Posts: 22
bill444 is on a distinguished road
Quote:
Originally Posted by AuSeeker View Post
On 4th Gens 4Runners isn't the Idle Air Control valve integrated into the throttle body and not removable/replaceable as it was in earlier models?
Great question. I can't find any idle control valve in the parts database. I did find an "air control valve".

1986-2009 Toyota Control Valve 17630-16040 | McGeorge Toyota Parts

I think I will just need to get under the hood to look for something connected to the throttle body because the picture in my link doesn't show that.
bill444 is offline   Reply With QuoteReply With Quote
Old 06-20-2021, 02:06 PM #9
81runner's Avatar
81runner 81runner is offline
Member
 
Join Date: Mar 2018
Location: Moorpark CA
Age: 39
Posts: 476
Real Name: Elliott
81runner has a spectacular aura about 81runner has a spectacular aura about
81runner 81runner is offline
Member
81runner's Avatar
 
Join Date: Mar 2018
Location: Moorpark CA
Age: 39
Posts: 476
Real Name: Elliott
81runner has a spectacular aura about 81runner has a spectacular aura about
Quote:
Originally Posted by AuSeeker View Post
On 4th Gens 4Runners isn't the Idle Air Control valve integrated into the throttle body and not removable/replaceable as it was in earlier models?
Idle air control AND throttle position sensor are RIVETED to the throttle body on the 4.0. only solution would be replace the throttle body, though I would only go that route if due diligence didn't pay off with the vacuum lines, you'd be amazed what a vacuum leak can do to a modern engine
__________________
2007 SR5 V6 4WD 205k, Titanium Metallic. 5100s, OME 885/895, extended rear links, ST Maxx 255/75 R17 on 17x8s, mud flap delete,TB spacer, Spectre CAI, DRL delete, HCF delete, DAC delete, K&N cabin filter, TPMS bypass, Fog light mod, USB galore, dash cam, LED lights all over, rear bumper lights, cbi ditch light brackets w/lights, atrac off, OBA w/2 gallon tank/hidden hook up, Trailgear welded sliders, Rocksteady skids, custom swing-out, 3⁰, SE hood w/working vent, Sprint booster, JET MAF, Kenwood TM-V71a w/motorized antenna, custom dual battery, custom roof rack/lights, custom TRED mount, external 12v, rear diff breather, pck, Freedom UCAs, custom stereo, Aluminum rad, trans cooler, 240A alternator...for now...
81runner is offline   Reply With QuoteReply With Quote
Old 06-20-2021, 04:02 PM #10
Buckaroo's Avatar
Buckaroo Buckaroo is offline
Member
 
Join Date: Jun 2011
Location: Lewis Center, OH
Posts: 419
Buckaroo is on a distinguished road
Buckaroo Buckaroo is offline
Member
Buckaroo's Avatar
 
Join Date: Jun 2011
Location: Lewis Center, OH
Posts: 419
Buckaroo is on a distinguished road
I was talking from experience with my former 3rd gen V6 and didn't know the design changed on the 4th gen so I learned something. Thanks for the correction....does it operate the same way as the 3rd gen, just not replaceable? Can it be cleaned?
__________________
2002 & 2017 XLE Camry
2004 Honda Accord
2005 T4R Limited V6
2010 Mazda MX-5 Touring
2017 Tundra Limited DC 5.7L TRD 4WD

Last edited by Buckaroo; 06-20-2021 at 04:09 PM.
Buckaroo is offline   Reply With QuoteReply With Quote
Old 06-21-2021, 08:28 AM #11
triethylborane triethylborane is offline
Member
 
Join Date: Oct 2020
Location: Denver, CO
Posts: 89
triethylborane will become famous soon enough
triethylborane triethylborane is offline
Member
 
Join Date: Oct 2020
Location: Denver, CO
Posts: 89
triethylborane will become famous soon enough
Quote:
Originally Posted by 81runner View Post
though I would only go that route if due diligence didn't pay off with the vacuum lines, you'd be amazed what a vacuum leak can do to a modern engine

Thats true and I would use an OBD reader to look at fuel trims to see if they are high . . . another indication of a leak.
triethylborane is offline   Reply With QuoteReply With Quote
Reply

Tags
oil , original , plugs , side , spark

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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 On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Original plugs at 195K miles? nm_alien 4th Gen T4Rs 16 10-02-2018 11:50 AM
2003 limited v8 spark plugs Brutalguyracing 4th Gen T4Rs 32 02-08-2015 12:50 AM
Cause for Concern? original plugs @ 79K CookieRoe 4th Gen T4Rs 5 11-11-2010 10:19 AM
WTF!!!??? 60k and ORIGINAL V6 PLUGS!!?? 4RunnerStunner Maintenance/Detailing 14 07-22-2009 08:29 PM
pultar pulse plugs (not spark plugs) 3rdgengrog 3rd gen T4Rs 2 11-15-2008 04:44 PM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 11:32 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
***This site is an unofficial Toyota site, and is not officially endorsed, supported, authorized by or affiliated with Toyota. All company, product, or service names references in this web site are used for identification purposes only and may be trademarks of their respective owners. The Toyota name, marks, designs and logos, as well as Toyota model names, are registered trademarks of Toyota Motor Corporation***Ad Management plugin by RedTyger
 
Copyright © 2020