User Tag List

Reply
 
Thread Tools Rate Thread Display Modes
Old 08-08-2020, 09:07 PM #1
jross20's Avatar
jross20 jross20 is offline
Senior Member
 
Join Date: Jun 2019
Location: Georgia
Posts: 1,328
jross20 is a jewel in the rough jross20 is a jewel in the rough jross20 is a jewel in the rough
jross20 jross20 is offline
Senior Member
jross20's Avatar
 
Join Date: Jun 2019
Location: Georgia
Posts: 1,328
jross20 is a jewel in the rough jross20 is a jewel in the rough jross20 is a jewel in the rough
Bad stuttering/sputtering under any load (Help, out of state)

Currently about 900 miles from home, on our way back. About an hour ago she started sputtering/stuttering/skipping under any load. We can maintain speed on flat ground, and higher rpm's greatly help, so dropping out of overdrive helps us get over hills.

When we are at a stop, I have to very gently baby the throttle other wise she just stumbles badly.

Any ideas? I'm thinking a fuel injector... Maybe? Worst of all, no codes at all.

2000 SR5 V6 Auto 4*4. 145k miles.

In the past year I've changed the spark plugs, wires, fuel filter, etc.

Any advice that may help us limp home would be worth many beers.
jross20 is offline   Reply With QuoteReply With Quote
Old 08-08-2020, 09:32 PM #2
zcruiser's Avatar
zcruiser zcruiser is offline
Senior Member
 
Join Date: Apr 2009
Location: Orange Co, NC
Posts: 1,295
zcruiser has a spectacular aura about zcruiser has a spectacular aura about
zcruiser zcruiser is offline
Senior Member
zcruiser's Avatar
 
Join Date: Apr 2009
Location: Orange Co, NC
Posts: 1,295
zcruiser has a spectacular aura about zcruiser has a spectacular aura about
Did you use the dual-electrode plus or regular plugs?
__________________
2012 4Runner Limited, Shoreline Blue Pearl / Beige leather, RCI skid, ext rear diff breather, Derale 13504 cooler, 110K
1993 300ZX Cherry Red Pearl with some bling, K&N intake, PowerTrix suspension, 130K
zcruiser is offline   Reply With QuoteReply With Quote
Old 08-08-2020, 10:00 PM #3
jross20's Avatar
jross20 jross20 is offline
Senior Member
 
Join Date: Jun 2019
Location: Georgia
Posts: 1,328
jross20 is a jewel in the rough jross20 is a jewel in the rough jross20 is a jewel in the rough
jross20 jross20 is offline
Senior Member
jross20's Avatar
 
Join Date: Jun 2019
Location: Georgia
Posts: 1,328
jross20 is a jewel in the rough jross20 is a jewel in the rough jross20 is a jewel in the rough
Quote:
Originally Posted by zcruiser View Post
Did you use the dual-electrode plus or regular plugs?
Duel electrode, also cleaned the MAF a few days ago as it stuttered once and I thought it may have been dirty from all the dust of Wyoming.
jross20 is offline   Reply With QuoteReply With Quote
Old 08-08-2020, 10:30 PM #4
MaineRunna's Avatar
MaineRunna MaineRunna is offline
Member
 
Join Date: Sep 2018
Location: Berwick, Maine USA
Posts: 374
Real Name: Mike
MaineRunna will become famous soon enough MaineRunna will become famous soon enough
MaineRunna MaineRunna is offline
Member
MaineRunna's Avatar
 
Join Date: Sep 2018
Location: Berwick, Maine USA
Posts: 374
Real Name: Mike
MaineRunna will become famous soon enough MaineRunna will become famous soon enough
Did you change the coil boots? These engines are famous for leaking spark through the spark plug & coil boots or out of carbon tracks on the spark plug insulators (porcelain). Could be a bad coil also. You'd have two dead cylinders if you have a bad coil. Is your check engine light on, is it flashing? Can you have it scanned somewhere?
__________________

98 SR5 4X4 5spd, desert dune metallic, Toytech Eibach 3" lift, 1" body lift, RAD Rubber Designs splash guards, 4XInnovations bumpers, Doug Thorely Headers, Magna-flow converter, JBA muffler & tail pipe, RCI skid plate, SPC UCA's & rear LCA's, front sway bar links on rear, gen II rear links on front, Tundra brakes, '02 headlights, tail lights & sidemarkers, BFG 255/85R16 Mud Terrain T/A's 241,000 miles.
MaineRunna is offline   Reply With QuoteReply With Quote
Old 08-08-2020, 11:26 PM #5
jross20's Avatar
jross20 jross20 is offline
Senior Member
 
Join Date: Jun 2019
Location: Georgia
Posts: 1,328
jross20 is a jewel in the rough jross20 is a jewel in the rough jross20 is a jewel in the rough
jross20 jross20 is offline
Senior Member
jross20's Avatar
 
Join Date: Jun 2019
Location: Georgia
Posts: 1,328
jross20 is a jewel in the rough jross20 is a jewel in the rough jross20 is a jewel in the rough
Quote:
Originally Posted by MaineRunna View Post
Did you change the coil boots? These engines are famous for leaking spark through the spark plug & coil boots or out of carbon tracks on the spark plug insulators (porcelain). Could be a bad coil also. You'd have two dead cylinders if you have a bad coil. Is your check engine light on, is it flashing? Can you have it scanned somewhere?
Hey sorry for the delay, bad service out here.

I believe the wires had boots, they were oem. Also, no lights or codes, scanned with torque pro and at an auto store a little while ago.

As I drive it seems to mainly be a problem under 2000 rpm's, though I still feel it past there if the hill is steep enough, we just have to lose speed
jross20 is offline   Reply With QuoteReply With Quote
Old 08-09-2020, 12:55 AM #6
jross20's Avatar
jross20 jross20 is offline
Senior Member
 
Join Date: Jun 2019
Location: Georgia
Posts: 1,328
jross20 is a jewel in the rough jross20 is a jewel in the rough jross20 is a jewel in the rough
jross20 jross20 is offline
Senior Member
jross20's Avatar
 
Join Date: Jun 2019
Location: Georgia
Posts: 1,328
jross20 is a jewel in the rough jross20 is a jewel in the rough jross20 is a jewel in the rough
The gf noticed but the passenger floorboard is excessively warm, enough to almost melt some m&M's in a bag. After thinking about it, I got to wondering if it could be the catalytic converter.

But I don't understand the relationship to a higher RPM being better and also the fact that fuel economy is not effected badly, in fact it is very good.

What are the symptoms of a bad cat on our rigs?
jross20 is offline   Reply With QuoteReply With Quote
Old 08-09-2020, 01:02 AM #7
Dieselchessy Dieselchessy is offline
Member
 
Join Date: Dec 2019
Location: SW Washington
Posts: 595
Dieselchessy has a spectacular aura about Dieselchessy has a spectacular aura about Dieselchessy has a spectacular aura about
Dieselchessy Dieselchessy is offline
Member
 
Join Date: Dec 2019
Location: SW Washington
Posts: 595
Dieselchessy has a spectacular aura about Dieselchessy has a spectacular aura about Dieselchessy has a spectacular aura about
I’ve had similar due to a plug backing out, plug wire failing, coil boot issues, and bad coil.

With my rigs when the plug backed out it never popped a check engine. The other times I limped several miles before it ever popped the light.

If you’ve only got one cylinder not firing it might never pop the engine light.

Sounds like you’ve probably got 2 not foreign though. With only one cylinder out they still run pretty good.
__________________
Owned 82, 83, 87 pickup, 98, 99 SR5 4runner
Currently own a 98 SR5, 5spd, 4x4, e-locker, no sunroof. 2012 LTD with the normal options.
Dieselchessy is offline   Reply With QuoteReply With Quote
Old 08-09-2020, 01:04 AM #8
Dieselchessy Dieselchessy is offline
Member
 
Join Date: Dec 2019
Location: SW Washington
Posts: 595
Dieselchessy has a spectacular aura about Dieselchessy has a spectacular aura about Dieselchessy has a spectacular aura about
Dieselchessy Dieselchessy is offline
Member
 
Join Date: Dec 2019
Location: SW Washington
Posts: 595
Dieselchessy has a spectacular aura about Dieselchessy has a spectacular aura about Dieselchessy has a spectacular aura about
Is your cat burning un-burnt fuel?
__________________
Owned 82, 83, 87 pickup, 98, 99 SR5 4runner
Currently own a 98 SR5, 5spd, 4x4, e-locker, no sunroof. 2012 LTD with the normal options.
Dieselchessy is offline   Reply With QuoteReply With Quote
Old 08-09-2020, 10:07 AM #9
snydmax's Avatar
snydmax snydmax is offline
Member
 
Join Date: Jun 2019
Location: NWA
Posts: 270
Real Name: Matt
snydmax will become famous soon enough
snydmax snydmax is offline
Member
snydmax's Avatar
 
Join Date: Jun 2019
Location: NWA
Posts: 270
Real Name: Matt
snydmax will become famous soon enough
Sounds like a misfire... are you getting a CEL? Mine ran just as you describe, gave a CEL and trouble code within 10miles as I limped home.

Trouble code identified Misfire on cylinders x,y (don’t remember which two) turned out to be a bad boot/wire

I kept the new coil I bought as a spare for emergencies


Sent from my iPhone using Tapatalk
__________________
'98 4WD Limited, Warm Grey, 172k, Factory E-Locker, Ride-Rites, 265/75-16 Wildpeak AT3s
snydmax is offline   Reply With QuoteReply With Quote
Old 08-09-2020, 11:06 AM #10
jross20's Avatar
jross20 jross20 is offline
Senior Member
 
Join Date: Jun 2019
Location: Georgia
Posts: 1,328
jross20 is a jewel in the rough jross20 is a jewel in the rough jross20 is a jewel in the rough
jross20 jross20 is offline
Senior Member
jross20's Avatar
 
Join Date: Jun 2019
Location: Georgia
Posts: 1,328
jross20 is a jewel in the rough jross20 is a jewel in the rough jross20 is a jewel in the rough
Quote:
Originally Posted by Dieselchessy View Post
I’ve had similar due to a plug backing out, plug wire failing, coil boot issues, and bad coil.

With my rigs when the plug backed out it never popped a check engine. The other times I limped several miles before it ever popped the light.

If you’ve only got one cylinder not firing it might never pop the engine light.

Sounds like you’ve probably got 2 not foreign though. With only one cylinder out they still run pretty good.
It's really hard to tell if it's a misfire or not. Really seems like it's not getting enough fuel maybe.

Would a misfire ease up at higher rpm's?

Quote:
Originally Posted by Dieselchessy View Post
Is your cat burning un-burnt fuel?
Not sure, how would I check this?

Quote:
Originally Posted by snydmax View Post
Sounds like a misfire... are you getting a CEL? Mine ran just as you describe, gave a CEL and trouble code within 10miles as I limped home.

Trouble code identified Misfire on cylinders x,y (don’t remember which two) turned out to be a bad boot/wire

I kept the new coil I bought as a spare for emergencies


Sent from my iPhone using Tapatalk
When you say CEL, you're talking about codes right? Still no code as of last night. We are packing up now at this hotel at stayed at last night.

Did yours seem fine while cruising? Not under load? Did it ease up at higher rpm's?

If I remove the front 02 sensor and that fixes it, I presume that would confirm the cat, but I also presume I can't drive around with it removed right?
jross20 is offline   Reply With QuoteReply With Quote
Old 08-09-2020, 11:19 AM #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
Any problems starting? If the kitty is clogged, you should be getting a po420. Also you can see if the post cat pipe is cool to the touch indicating a clogged cat (the post cat pipe is supposed to be hotter than the pre cat pipe in a normal working system).

What are your short and long term fuel trim numbers with TP?
LittleCaesar is offline   Reply With QuoteReply With Quote
Old 08-09-2020, 11:33 AM #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
Unburned fuel from a missfire gets burned in the cat. Which can cause the cat to melt.

Your symptoms to me sound like a coil that’s bad. The higher the engine load the harder it is to spark the plug.

I’d buy a coil or three and new coil boots and start there.

To me it’s a pretty strong symptom of a weak coil that can know longer produce a spark at high engine loads/combustion pressures.


Sent from my iPhone using Tapatalk
19963.4lsr5 is offline   Reply With QuoteReply With Quote
Old 08-09-2020, 11:39 AM #13
snydmax's Avatar
snydmax snydmax is offline
Member
 
Join Date: Jun 2019
Location: NWA
Posts: 270
Real Name: Matt
snydmax will become famous soon enough
snydmax snydmax is offline
Member
snydmax's Avatar
 
Join Date: Jun 2019
Location: NWA
Posts: 270
Real Name: Matt
snydmax will become famous soon enough
Quote:
Originally Posted by jross20 View Post
It's really hard to tell if it's a misfire or not. Really seems like it's not getting enough fuel maybe.

Would a misfire ease up at higher rpm's?



Not sure, how would I check this?



When you say CEL, you're talking about codes right? Still no code as of last night. We are packing up now at this hotel at stayed at last night.

Did yours seem fine while cruising? Not under load? Did it ease up at higher rpm's?

If I remove the front 02 sensor and that fixes it, I presume that would confirm the cat, but I also presume I can't drive around with it removed right?

CEL - “check engine light...” you won’t see any codes with an obd2 scanner unless this is on. I had no CEL initially, but it finally came on after idling for about 30 minutes es while we looked things over and then I drove it home, +/- 10 miles... the light came on before we made it to the house

Mine sounded terrible at idle, had no power, at “cruise” speed, no load, not on the throttle, it was less noticeable but I could definitely tell it was still misfiring.

The odor of fuel was also very prominent, easy to smell while the truck was idling and we were trying to diagnose... this was due to the fuel being dumped into the cylinder that was not being combusted as there was no spark.

I decided to stop and buy a set of plug wires and a coil on the way home that night, already had a set of plugs to put in, as it was getting late and wanted to see if it was something “easy.” Code confirmed my suspicion and we had her back on the road next morning.

I’d be very apprehensive to continue your journey with these symptoms, you could turn a minor repair into a major failure


Sent from my iPhone using Tapatalk
__________________
'98 4WD Limited, Warm Grey, 172k, Factory E-Locker, Ride-Rites, 265/75-16 Wildpeak AT3s
snydmax is offline   Reply With QuoteReply With Quote
Old 08-09-2020, 11:43 AM #14
snydmax's Avatar
snydmax snydmax is offline
Member
 
Join Date: Jun 2019
Location: NWA
Posts: 270
Real Name: Matt
snydmax will become famous soon enough
snydmax snydmax is offline
Member
snydmax's Avatar
 
Join Date: Jun 2019
Location: NWA
Posts: 270
Real Name: Matt
snydmax will become famous soon enough
Quote:
Originally Posted by jross20 View Post
It's really hard to tell if it's a misfire or not.
You can try to unplug each spark plug one at a time, see if that changes how the engine is running, an old school method.

Not sure if you can actually isolate them one at a time though with the way a single coil is shared by two plugs.


Sent from my iPhone using Tapatalk
__________________
'98 4WD Limited, Warm Grey, 172k, Factory E-Locker, Ride-Rites, 265/75-16 Wildpeak AT3s
snydmax is offline   Reply With QuoteReply With Quote
Old 08-09-2020, 02:42 PM #15
jross20's Avatar
jross20 jross20 is offline
Senior Member
 
Join Date: Jun 2019
Location: Georgia
Posts: 1,328
jross20 is a jewel in the rough jross20 is a jewel in the rough jross20 is a jewel in the rough
jross20 jross20 is offline
Senior Member
jross20's Avatar
 
Join Date: Jun 2019
Location: Georgia
Posts: 1,328
jross20 is a jewel in the rough jross20 is a jewel in the rough jross20 is a jewel in the rough
Finally got codes, still limping carefully. 450 miles to home

p0300 p0303
jross20 is offline   Reply With QuoteReply With Quote
Reply

Tags
codes , fuel , home , load , miles

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
Stuttering and stalling Vooryjoni 3rd gen T4Rs 5 10-25-2019 07:48 AM
Sputtering / Misfiring in Neutral under load Misho 3rd gen T4Rs 5 10-12-2017 11:35 PM
Stuttering upon acceleration Jhacker1 Classic T4Rs 4 08-03-2012 03:08 PM
New 2011 T4R Engine Stuttering TroutBoy 5th gen T4Rs 4 11-17-2010 12:19 AM
Slight stuttering problem... crazeazn Problems & Warranty Issues 2 04-20-2006 08:35 AM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 08:32 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