User Tag List

Reply
 
Thread Tools Rate Thread Display Modes
Old 09-23-2019, 02:46 PM #1
TrexRunnerGirl's Avatar
TrexRunnerGirl TrexRunnerGirl is offline
Member
 
Join Date: Sep 2017
Location: Chicago NW burbs
Posts: 418
Real Name: Teri
TrexRunnerGirl is on a distinguished road
TrexRunnerGirl TrexRunnerGirl is offline
Member
TrexRunnerGirl's Avatar
 
Join Date: Sep 2017
Location: Chicago NW burbs
Posts: 418
Real Name: Teri
TrexRunnerGirl is on a distinguished road
Spark plugs or coil or what

here we go. 99 Limited, just had the starter rebuilt and now....

I tried to go 60 mph and it shuddered and threw the check engine light. flashed on/off. Tried this maneuver several times and same thing.
Now the check engine light stayed on, couldn't go over 50 mph because it shudders so much.

Mechanic says code it for Cylinder 3 or coils. They swapped the spark plugs for Cyl. 3 and the other side. It does look like the plugs had been changed and looked good.
I tested it again and shudders still between 50 and 60 but NOT giving a check engine light.
They are saying they can't do much until it comes back on.

I ain't buying this line and I don't want my truck's engine to blow up over something that I know y'all can help me figure out.

What do you have for me? It runs fine under 50 mph but that shudder scares the crap out of me. I can't let my son drive it like this and I don't want to either.
__________________
99 Limited Silver/Tan 145K, Love this old thing.
16 Sonata Sport, Red with Grey interior.
TrexRunnerGirl is offline   Reply With QuoteReply With Quote
Old 09-23-2019, 02:52 PM #2
4Reak Show's Avatar
4Reak Show 4Reak Show is offline
Senior Member
 
Join Date: Jul 2015
Location: Northern California
Age: 36
Posts: 1,471
4Reak Show is a glorious beacon of light 4Reak Show is a glorious beacon of light 4Reak Show is a glorious beacon of light 4Reak Show is a glorious beacon of light 4Reak Show is a glorious beacon of light 4Reak Show is a glorious beacon of light
4Reak Show 4Reak Show is offline
Senior Member
4Reak Show's Avatar
 
Join Date: Jul 2015
Location: Northern California
Age: 36
Posts: 1,471
4Reak Show is a glorious beacon of light 4Reak Show is a glorious beacon of light 4Reak Show is a glorious beacon of light 4Reak Show is a glorious beacon of light 4Reak Show is a glorious beacon of light 4Reak Show is a glorious beacon of light
You need a better technician. Most scan tools give live data, one of which will show real time misfire counters for each cylinder. So after they swap a coil they can drive it to duplicate and immediately see which cylinder misfires. No need to wait for a hard code to set unless they are using a super basic autozone scanner. The tricky part of the waste spark system the 3.4 has is that the companion cylinder can be the problem cylinder and it could flag incorrectly if only looking at the code.
__________________
The 4Reak Show: 1995 4Runner, 3.4 swapped, manual conversion, supercharged & 7th injected, Eaton TrueTrac in rear, poly bushings F&R, lots of other outrageous add ons...

Wife's: 2016 Trail Premium, bone stock until she joins T4R.org one day...
4Reak Show is offline   Reply With QuoteReply With Quote
Old 09-23-2019, 02:54 PM #3
Kanoe's Avatar
Kanoe Kanoe is offline
Senior Member
 
Join Date: Dec 2013
Location: Yukon
Posts: 1,317
Kanoe is just really nice Kanoe is just really nice Kanoe is just really nice Kanoe is just really nice
Kanoe Kanoe is offline
Senior Member
Kanoe's Avatar
 
Join Date: Dec 2013
Location: Yukon
Posts: 1,317
Kanoe is just really nice Kanoe is just really nice Kanoe is just really nice Kanoe is just really nice
You could start with new plugs. They are cheap enough that you should never have to reinsert a used one. Old one out, new in. Regular changing will also prevent stuck plug disaster stories.

More likely coil or wire issue realistically.
__________________
-1996 4Runner. 3RZ 5-Spd. 4x4 Base model. OME2906/Toyota OEM rears with 2004 Tacoma Dual Rate Fronts on Bilstien 4600s.
-1993 Corolla Wagon 7AFE
-2001 Echo D.D.
Kanoe is offline   Reply With QuoteReply With Quote
Old 09-23-2019, 03:12 PM #4
APhelps APhelps is offline
Member
 
Join Date: Sep 2016
Location: San Diego, CA
Posts: 528
APhelps has a spectacular aura about APhelps has a spectacular aura about
APhelps APhelps is offline
Member
 
Join Date: Sep 2016
Location: San Diego, CA
Posts: 528
APhelps has a spectacular aura about APhelps has a spectacular aura about
Use a ohmmeter / multimeter and measure the resistance of the coil pack and spark plug wiring. Verify if they are in spec but I'd verify all the coil packs and wiring because you're already there.
APhelps is offline   Reply With QuoteReply With Quote
Old 09-23-2019, 03:34 PM #5
Bad Luck Bad Luck is offline
Senior Member
 
Join Date: Feb 2019
Location: Hot Springs, AR
Posts: 4,410
Real Name: Patrick
Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute
Bad Luck Bad Luck is offline
Senior Member
 
Join Date: Feb 2019
Location: Hot Springs, AR
Posts: 4,410
Real Name: Patrick
Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute
Quote:
Originally Posted by 4Reak Show View Post
You need a better technician. Most scan tools give live data, one of which will show real time misfire counters for each cylinder. So after they swap a coil they can drive it to duplicate and immediately see which cylinder misfires. No need to wait for a hard code to set unless they are using a super basic autozone scanner. The tricky part of the waste spark system the 3.4 has is that the companion cylinder can be the problem cylinder and it could flag incorrectly if only looking at the code.
3rd Gen 4Runner's don't show that much data. I'm in the same boat right now as the OP. I know it's misfiring, I can feel it misfiring, but the ecm will not set another misfire code. I've tried using a snap on scan tool and bluedriver, but neither show live data or a misfire counter.
Bad Luck is offline   Reply With QuoteReply With Quote
Old 09-23-2019, 03:39 PM #6
Bad Luck Bad Luck is offline
Senior Member
 
Join Date: Feb 2019
Location: Hot Springs, AR
Posts: 4,410
Real Name: Patrick
Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute
Bad Luck Bad Luck is offline
Senior Member
 
Join Date: Feb 2019
Location: Hot Springs, AR
Posts: 4,410
Real Name: Patrick
Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute Bad Luck has a reputation beyond repute
Quote:
Originally Posted by TrexRunnerGirl View Post
here we go. 99 Limited, just had the starter rebuilt and now....

I tried to go 60 mph and it shuddered and threw the check engine light. flashed on/off. Tried this maneuver several times and same thing.
Now the check engine light stayed on, couldn't go over 50 mph because it shudders so much.

Mechanic says code it for Cylinder 3 or coils. They swapped the spark plugs for Cyl. 3 and the other side. It does look like the plugs had been changed and looked good.
I tested it again and shudders still between 50 and 60 but NOT giving a check engine light.
They are saying they can't do much until it comes back on.

I ain't buying this line and I don't want my truck's engine to blow up over something that I know y'all can help me figure out.

What do you have for me? It runs fine under 50 mph but that shudder scares the crap out of me. I can't let my son drive it like this and I don't want to either.
I'm dealing with a misfire as well. Swapped my coil and have been waiting 2 weeks of driving with my misfire to hopefully get another code to set. In the mean time I used the FSM to test my spark plugs/wires/coil packs and they all test good. My misfire is intermittent but happens more under low rpms and higher loads (think 55 mph highway speeds but going up a slight grade). I tested all my injectors as well and they ohm out correctly but I'm going to replace them with re manufactured from LCE. I'm thinking one may be clogged or getting stuck. Good luck
Bad Luck is offline   Reply With QuoteReply With Quote
Old 09-23-2019, 04:09 PM #7
gamefreakgc's Avatar
gamefreakgc gamefreakgc is offline
Elite Member
 
Join Date: Oct 2014
Location: Citrus Heights, California
Age: 36
Posts: 7,330
Real Name: Jerod
gamefreakgc has a brilliant future gamefreakgc has a brilliant future gamefreakgc has a brilliant future gamefreakgc has a brilliant future gamefreakgc has a brilliant future gamefreakgc has a brilliant future gamefreakgc has a brilliant future gamefreakgc has a brilliant future gamefreakgc has a brilliant future gamefreakgc has a brilliant future gamefreakgc has a brilliant future
gamefreakgc gamefreakgc is offline
Elite Member
gamefreakgc's Avatar
 
Join Date: Oct 2014
Location: Citrus Heights, California
Age: 36
Posts: 7,330
Real Name: Jerod
gamefreakgc has a brilliant future gamefreakgc has a brilliant future gamefreakgc has a brilliant future gamefreakgc has a brilliant future gamefreakgc has a brilliant future gamefreakgc has a brilliant future gamefreakgc has a brilliant future gamefreakgc has a brilliant future gamefreakgc has a brilliant future gamefreakgc has a brilliant future gamefreakgc has a brilliant future
Cheap easy things to do first:

1. Clean you MAF sensor with carb cleaner/MAF sensor cleaner. Helps a lot of idle and misfire issues by accurately reading air flow. Cost: $5

2. Put a couple of injector cleaners in the tank. If the misfire improves at all, suspect the injectors. I recommend Royal Purple's Max Atomizer. Cost: $7

3. New plugs won't hurt but not likely the issue if there's no visible damage to the insulator or electrode. Cost: $20

4. See if you can read Throttle Position Sensor data. It should track with the position of the throttle plate. If when it misfires the data is wrong, suspect the TPS. Cost: Free to diagnose.

5. Check all fluids for correct level & color. Check tailpipe for white smoke/head gasket. I have a 4Runner in the yard right now that has a blown gasket (and rod knock) and it shudders something terrible with absolutely no codes in the system.
__________________
'98 4Runner SR5 - 4x4 JDM 5VZ-FE Supercharged - 249K miles.
326WHP 347TQ

AEM F/IC 6, 11 PSI, 3" Intake and 3" Exhaust
Jerod's Supercharged T[u]RD Build
gamefreakgc is offline   Reply With QuoteReply With Quote
Old 09-23-2019, 04:22 PM #8
suncoug suncoug is offline
Junior Member
 
Join Date: Mar 2018
Location: USA
Posts: 24
suncoug is on a distinguished road
suncoug suncoug is offline
Junior Member
 
Join Date: Mar 2018
Location: USA
Posts: 24
suncoug is on a distinguished road
I would replace the spark plugs and spark plug wires first. This happened to me several years ago while driving to the beach in NC. I stopped at a auto parts store and swapped out the above. I would look at replacing coils as well. They are pretty cheap if you buy non-denso/toyota brand.

I would also start using Techron and see if that helps, which would point to the injectors.
suncoug is offline   Reply With QuoteReply With Quote
Old 09-23-2019, 04:33 PM #9
jkoni426 jkoni426 is offline
Member
 
Join Date: Jul 2012
Location: MD
Posts: 216
Real Name: Joe
jkoni426 is on a distinguished road
jkoni426 jkoni426 is offline
Member
 
Join Date: Jul 2012
Location: MD
Posts: 216
Real Name: Joe
jkoni426 is on a distinguished road
I'm dealing with the same thing, same cylinder. About to throw some re-manufactured injectors from GB in this weekend after ruling out spark and compression. Mine only set a CEL and flashed once, although it will show a pending P0303 code when restarted warm and stumbling.
__________________
'99 T4R SR5 V6 4WD Imperial Jade Mica | 199mm TBU
jkoni426 is offline   Reply With QuoteReply With Quote
Old 09-23-2019, 06:56 PM #10
jgue467's Avatar
jgue467 jgue467 is offline
Senior Member
 
Join Date: Sep 2011
Location: Austin, Texas
Posts: 3,145
jgue467 is just really nice jgue467 is just really nice jgue467 is just really nice jgue467 is just really nice jgue467 is just really nice
jgue467 jgue467 is offline
Senior Member
jgue467's Avatar
 
Join Date: Sep 2011
Location: Austin, Texas
Posts: 3,145
jgue467 is just really nice jgue467 is just really nice jgue467 is just really nice jgue467 is just really nice jgue467 is just really nice
Quote:
Originally Posted by TrexRunnerGirl View Post
...
the check engine light. flashed on/off. Tried this maneuver several times and same thing.
Now the check engine light stayed on, couldn't go over 50 mph because it shudders so much.
...
Flashing CEL is a Major No-No! Don't try to repeat it, once is enough.

When it flashes, the ECU is trying to to you really, really to let off the throttle! It's saying way to much unburnt fuel is getting past to the cats potentially causing harm in the medium to long run.

I'd go with plugs and wires for now, 98% that will take care of your shudder, its just a miss, only takes one on a six banger to feel bad.

Luck and enjoy the Runner.
__________________
2001 Limited 4WD - 346+K - SunfireRed\Thunder Cloud; - 265/75/16 Michelin A/T2s - Fat Pat's 1.5" BL - StopTech ANGLED rotors - In series 699 trans cooler, New Yota1 transmission, All new OEM suspension front to rear.
jgue467 is offline   Reply With QuoteReply With Quote
Old 09-23-2019, 07:28 PM #11
LittleCaesar's Avatar
LittleCaesar LittleCaesar is offline
Elite Member
 
Join Date: May 2011
Location: OBX, NC and Obamaville
Posts: 6,801
LittleCaesar is just really nice LittleCaesar is just really nice LittleCaesar is just really nice LittleCaesar is just really nice
LittleCaesar LittleCaesar is offline
Elite Member
LittleCaesar's Avatar
 
Join Date: May 2011
Location: OBX, NC and Obamaville
Posts: 6,801
LittleCaesar is just really nice LittleCaesar is just really nice LittleCaesar is just really nice LittleCaesar is just really nice
The first question that should be asked is whether your 4Runner couldn’t go past 60 BEFORE the starter rebuild?
LittleCaesar is offline   Reply With QuoteReply With Quote
Old 09-23-2019, 10:35 PM #12
19963.4lsr5 19963.4lsr5 is offline
Elite Member
 
Join Date: Aug 2013
Location: Stouchsburg PA
Posts: 5,304
19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold
19963.4lsr5 19963.4lsr5 is offline
Elite Member
 
Join Date: Aug 2013
Location: Stouchsburg PA
Posts: 5,304
19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold
I’ve said this many times before.

Toyota could have done a better job with their misfire detection. I had a dead coil on the 97 Puppy Hauler and never got a check engine light until 800ft before pulling into the garage.

That lack of quick detection is probably why the CATs go bad on these things. They melt down from burning off all the raw gas.

Antifreeze doesn’t kill them and is the other cause of the dreaded P0420 code.


Sent from my iPhone using Tapatalk
19963.4lsr5 is offline   Reply With QuoteReply With Quote
Old 09-23-2019, 11:09 PM #13
dogtail's Avatar
dogtail dogtail is offline
Member
 
Join Date: May 2015
Location: Massachusetts
Posts: 648
Real Name: Keith
dogtail has a spectacular aura about dogtail has a spectacular aura about
dogtail dogtail is offline
Member
dogtail's Avatar
 
Join Date: May 2015
Location: Massachusetts
Posts: 648
Real Name: Keith
dogtail has a spectacular aura about dogtail has a spectacular aura about
Other than plugs and wires....coil boots will do that. People overlook them and don't replace when replacing the spark plug wires. They think you gotta replace the coil which very rarely if ever will go bad, either they work or they don't.
Pop off the coils, I'm thinking the boots are heat cracked. To check them, squeeze the bottom where it slides over the spark plug and it will probably have cracks in the rubber. You can buy a set of the 3 Denso coil boots for $37 from Rock Auto. Part #6716248. You'll surely use them anyway so you might as well buy them.
These things are super easy to swap out, takes like 20 minutes and a think just a 10mm socket.
Attached Images
Spark plugs or coil or what-denso-coil-boot-jpg 
__________________
*1999 3.4L, 4wd/5spd, swapped motor and trans, heavy use DD, seasonal rust proofing using WD-40 only
*2000 3.4L, 4wd/5spd, parts rig, picking the carcass
dogtail is offline   Reply With QuoteReply With Quote
Old 09-24-2019, 12:15 PM #14
TrexRunnerGirl's Avatar
TrexRunnerGirl TrexRunnerGirl is offline
Member
 
Join Date: Sep 2017
Location: Chicago NW burbs
Posts: 418
Real Name: Teri
TrexRunnerGirl is on a distinguished road
TrexRunnerGirl TrexRunnerGirl is offline
Member
TrexRunnerGirl's Avatar
 
Join Date: Sep 2017
Location: Chicago NW burbs
Posts: 418
Real Name: Teri
TrexRunnerGirl is on a distinguished road
Thanks so much everyone for the help.

I will do plugs and coils and these boots. It's a place to start.

Hope this is the last thing before winter. Otherwise, it runs just fine and I miss my random country drives just to get her out and about.
__________________
99 Limited Silver/Tan 145K, Love this old thing.
16 Sonata Sport, Red with Grey interior.
TrexRunnerGirl is offline   Reply With QuoteReply With Quote
Reply

Tags
check , engine , light , mph , plugs

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
spark plugs 7echo 3rd gen T4Rs 2 10-19-2014 07:59 AM
Spark Plugs, Wires, COil Packs CitadelBlue 3rd gen T4Rs 11 03-21-2013 02:19 PM
Spark Plugs ozzy4355 General Discussions 7 01-02-2009 01:33 PM
pultar pulse plugs (not spark plugs) 3rdgengrog 3rd gen T4Rs 2 11-15-2008 04:44 PM
spark plugs dann 3rd gen T4Rs 4 09-12-2008 01:49 PM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 03:51 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2024 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