User Tag List

Reply
 
Thread Tools Rate Thread Display Modes
Old 03-04-2024, 12:06 AM #1
vegask vegask is offline
Member
 
Join Date: Nov 2005
Location: Reno, NV
Age: 47
Posts: 74
vegask will become famous soon enough
vegask vegask is offline
Member
 
Join Date: Nov 2005
Location: Reno, NV
Age: 47
Posts: 74
vegask will become famous soon enough
5vzfe stalls on steep climbs (crawl box)?

Just wanted to post this question to see if anyone has ideas or maybe has ran into it. My 4runner is not typical.

So the situation:
- 3/4 tank of gas
- Crawl box with 4.7s engaged
- stock tcase in 4hi
- automatic transmission in drive

Was on a very steep climb earlier this week in Sand Hollow Utah and it just cut out on me. Lost all power and rolled back into some rocks. Luckily no damage. Did it again later that day but I was able to use the e-brake and park to save it.

Seems to only happen when the 4.7s are in use and fires right back up like nothing happened afterwards.
__________________
SAS 97 4runner / Bone stock 2005 4runner / aka "Kurtfab"
vegask is offline   Reply With QuoteReply With Quote
Old 03-04-2024, 04:08 PM #2
JohnMc JohnMc is offline
Senior Member
 
Join Date: Jul 2011
Location: St. Louis
Posts: 1,110
JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all
JohnMc JohnMc is offline
Senior Member
 
Join Date: Jul 2011
Location: St. Louis
Posts: 1,110
JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all
I've gone up pretty steep things with mine (5-spd, case doubler, 6.6:1 in dual low) and never had an issue.

Are you hard on the throttle when it does this? Potential for some wiring issue when the multiplied torque shoves the drivetrain around more than normal?

And it did this at a decent RPM? Probably less of an issue with an auto trans and tq converter, but I've occasionally stalled mine (before I had the doubler). And they don't like restarting when they die under a load like that, I guess there's extra fuel still in the intake.

At 3/4 tank, it's unlikely to be a fuel supply issue, at least in terms of the fuel pump sucking air.

I'm sure there was a lot of distraction in the moment (to say the least) but did the dash lights do anything weird you can recall? Any OBD2 codes stored (they might not set a CEL)?
__________________
'99 Highlander 5-spd manual e-locker no-running-board
SS 3" suspension lift/1" body lift/33" tires/'Snowflake' TRD Taco wheels/231mm Tundra brakes/bumpers/armor/sliders/winch/Sherpa Matterhorn rack
Manual front hubs, NWF Eco-crawler transfer case doubler, second gas tank

Last edited by JohnMc; 03-04-2024 at 04:30 PM.
JohnMc is offline   Reply With QuoteReply With Quote
Old 03-04-2024, 04:48 PM #3
vegask vegask is offline
Member
 
Join Date: Nov 2005
Location: Reno, NV
Age: 47
Posts: 74
vegask will become famous soon enough
vegask vegask is offline
Member
 
Join Date: Nov 2005
Location: Reno, NV
Age: 47
Posts: 74
vegask will become famous soon enough
Quote:
Originally Posted by JohnMc View Post
I've gone up pretty steep things with mine (5-spd, case doubler, 6.6:1 in dual low) and never had an issue.

Are you hard on the throttle when it does this? Potential for some wiring issue when the multiplied torque shoves the drivetrain around more than normal?

And it did this at a decent RPM? Probably less of an issue with an auto trans and tq converter, but I've occasionally stalled mine (before I had the doubler). And they don't like restarting when they die under a load like that, I guess there's extra fuel still in the intake.

At 3/4 tank, it's unlikely to be a fuel supply issue, at least in terms of the fuel pump sucking air.

I'm sure there was a lot of distraction in the moment (to say the least) but did the dash lights do anything weird you can recall? Any OBD2 codes stored (they might not set a CEL)?
There was no CEL after restart and I did not have my reader with me. Gonna start carrying it.

Here is a video of it happening, I think I came off the gas to cover the brake pedal when it happened.

Mystery stall. - YouTube
__________________
SAS 97 4runner / Bone stock 2005 4runner / aka "Kurtfab"

Last edited by vegask; 03-04-2024 at 04:51 PM.
vegask is offline   Reply With QuoteReply With Quote
Old 03-04-2024, 05:02 PM #4
JohnMc JohnMc is offline
Senior Member
 
Join Date: Jul 2011
Location: St. Louis
Posts: 1,110
JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all
JohnMc JohnMc is offline
Senior Member
 
Join Date: Jul 2011
Location: St. Louis
Posts: 1,110
JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all
If there are pending/stored codes, they'll still be there until you clear them. Might be worth seeing. But even if it got fuel starved, it probably happened faster than the OBD2 would ever pick up.

Yeah, don't know what to say on that, you're partly over the top and not pulling as hard at that point, and the motor just clicks off. I'd be looking at an electrical issue. Which is obviously hard to find when it normally doesn't do it.
__________________
'99 Highlander 5-spd manual e-locker no-running-board
SS 3" suspension lift/1" body lift/33" tires/'Snowflake' TRD Taco wheels/231mm Tundra brakes/bumpers/armor/sliders/winch/Sherpa Matterhorn rack
Manual front hubs, NWF Eco-crawler transfer case doubler, second gas tank
JohnMc is offline   Reply With QuoteReply With Quote
Old 03-04-2024, 05:35 PM #5
Devbot's Avatar
Devbot Devbot is offline
Senior Member
 
Join Date: Apr 2020
Location: Monroe, WA
Posts: 2,241
Real Name: Devan
Devbot is a splendid one to behold Devbot is a splendid one to behold Devbot is a splendid one to behold Devbot is a splendid one to behold Devbot is a splendid one to behold Devbot is a splendid one to behold Devbot is a splendid one to behold Devbot is a splendid one to behold
Devbot Devbot is offline
Senior Member
Devbot's Avatar
 
Join Date: Apr 2020
Location: Monroe, WA
Posts: 2,241
Real Name: Devan
Devbot is a splendid one to behold Devbot is a splendid one to behold Devbot is a splendid one to behold Devbot is a splendid one to behold Devbot is a splendid one to behold Devbot is a splendid one to behold Devbot is a splendid one to behold Devbot is a splendid one to behold
I don't have an answer, just wanted to say nice SAS
At least it wasn't on the chute
What's interesting is the transfer case was kicked into neutral if you were able to roll back like that
__________________
Y2K Highlander Millennium Silver 3.4L auto @ 320k and climbing
Toytecs + 5100s / 7.5 wrap + OME spacers + Tokicos / JBA UCAs / Anonymous Fab. LBJs / Total Chaos Gussets / EimKeith PCK + LCAR / Extended Bump Stops; Brake Lines; Rear Diff Breather / True North Fab. Hybrid Bumper / CBI Hybrid Bumper + Tire Carrier / 4xInnovations Hybrid Sliders / Opt Offroad Trailing Arms / Lil Skip Gas Skid / BudBuilt Front Skid / ARB Rear Locker

Last edited by Devbot; 03-04-2024 at 06:56 PM.
Devbot is offline   Reply With QuoteReply With Quote
Old 03-04-2024, 08:05 PM #6
phattyduck phattyduck is offline
Elite Member
 
Join Date: Mar 2016
Location: Pasadena, CA
Posts: 5,661
phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute
phattyduck phattyduck is offline
Elite Member
 
Join Date: Mar 2016
Location: Pasadena, CA
Posts: 5,661
phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute
Quote:
Originally Posted by Devbot View Post
I don't have an answer, just wanted to say nice SAS
At least it wasn't on the chute
What's interesting is the transfer case was kicked into neutral if you were able to roll back like that
No, the torque converter would allow slip - especially once the pump isn't pumping. It wasn't in Park, it was in Drive...

-Charlie
__________________
'99 4Runner SR5 Auto - 4WD swapped
'89 Camry Alltrac LE 3S-GTE 5spd
'17 Chevy Volt Premier
'16 Honda Odyssey Elite
Previous: '88 Camry Alltrac LE 3S-GE BEAMS, 90 Camry 3S-GTE, 90 Camry DX, '03 WRX wagon, '08 Outback XT
phattyduck is offline   Reply With QuoteReply With Quote
Old 03-05-2024, 09:58 AM #7
JohnMc JohnMc is offline
Senior Member
 
Join Date: Jul 2011
Location: St. Louis
Posts: 1,110
JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all
JohnMc JohnMc is offline
Senior Member
 
Join Date: Jul 2011
Location: St. Louis
Posts: 1,110
JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all
Did you not have vacuum assist when you went for the brakes? Might have a bad one-way valve in the hose between the intake manifold and the brake booster.
__________________
'99 Highlander 5-spd manual e-locker no-running-board
SS 3" suspension lift/1" body lift/33" tires/'Snowflake' TRD Taco wheels/231mm Tundra brakes/bumpers/armor/sliders/winch/Sherpa Matterhorn rack
Manual front hubs, NWF Eco-crawler transfer case doubler, second gas tank
JohnMc is offline   Reply With QuoteReply With Quote
Old 03-05-2024, 02:28 PM #8
vegask vegask is offline
Member
 
Join Date: Nov 2005
Location: Reno, NV
Age: 47
Posts: 74
vegask will become famous soon enough
vegask vegask is offline
Member
 
Join Date: Nov 2005
Location: Reno, NV
Age: 47
Posts: 74
vegask will become famous soon enough
Quote:
Originally Posted by JohnMc View Post
Did you not have vacuum assist when you went for the brakes? Might have a bad one-way valve in the hose between the intake manifold and the brake booster.
I stood on the brakes and it felt like nothing was happening during the rollback. Thanks for the idea, that gives me something to start with.
__________________
SAS 97 4runner / Bone stock 2005 4runner / aka "Kurtfab"
vegask is offline   Reply With QuoteReply With Quote
Old 03-06-2024, 10:22 AM #9
JohnMc JohnMc is offline
Senior Member
 
Join Date: Jul 2011
Location: St. Louis
Posts: 1,110
JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all
JohnMc JohnMc is offline
Senior Member
 
Join Date: Jul 2011
Location: St. Louis
Posts: 1,110
JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all
Not related to the engine dying, of course. But even coming off full throttle and having the engine die suddenly (no engine vac) the booster still should have a couple of braking's worth of vac stored up.

In *really* cold weather the check valve on mine started to stick shut (preventing any engine vac from getting to the booster) until it warmed up under the hood, and boy, without power assist the brakes on a 4Runner are not very useful.

Pretty quick and easy part replacement.
__________________
'99 Highlander 5-spd manual e-locker no-running-board
SS 3" suspension lift/1" body lift/33" tires/'Snowflake' TRD Taco wheels/231mm Tundra brakes/bumpers/armor/sliders/winch/Sherpa Matterhorn rack
Manual front hubs, NWF Eco-crawler transfer case doubler, second gas tank
JohnMc is offline   Reply With QuoteReply With Quote
Old 03-06-2024, 02:00 PM #10
vegask vegask is offline
Member
 
Join Date: Nov 2005
Location: Reno, NV
Age: 47
Posts: 74
vegask will become famous soon enough
vegask vegask is offline
Member
 
Join Date: Nov 2005
Location: Reno, NV
Age: 47
Posts: 74
vegask will become famous soon enough
Quote:
Originally Posted by JohnMc View Post
Not related to the engine dying, of course. But even coming off full throttle and having the engine die suddenly (no engine vac) the booster still should have a couple of braking's worth of vac stored up.

In *really* cold weather the check valve on mine started to stick shut (preventing any engine vac from getting to the booster) until it warmed up under the hood, and boy, without power assist the brakes on a 4Runner are not very useful.

Pretty quick and easy part replacement.
Looked for leaks using an un-lit propane torch and did not find anything. I did find a leaking/cracked line on the evap side. I think it was the line that leads to the tank vent. Not sure if that would have caused it but I fixed it and will continue the hunt.
__________________
SAS 97 4runner / Bone stock 2005 4runner / aka "Kurtfab"
vegask is offline   Reply With QuoteReply With Quote
Old 03-06-2024, 02:22 PM #11
phattyduck phattyduck is offline
Elite Member
 
Join Date: Mar 2016
Location: Pasadena, CA
Posts: 5,661
phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute
phattyduck phattyduck is offline
Elite Member
 
Join Date: Mar 2016
Location: Pasadena, CA
Posts: 5,661
phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute phattyduck has a reputation beyond repute
Quote:
Originally Posted by vegask View Post
Looked for leaks using an un-lit propane torch and did not find anything. I did find a leaking/cracked line on the evap side. I think it was the line that leads to the tank vent. Not sure if that would have caused it but I fixed it and will continue the hunt.
He's talking about the check valve in the booster line, which you wouldn't find with propane. The hose is still good, just the valve is stuck open. Good on you for finding other vacuum leaks though!

The stalling is still a mystery though. I hope you can find the answer.

-Charlie
__________________
'99 4Runner SR5 Auto - 4WD swapped
'89 Camry Alltrac LE 3S-GTE 5spd
'17 Chevy Volt Premier
'16 Honda Odyssey Elite
Previous: '88 Camry Alltrac LE 3S-GE BEAMS, 90 Camry 3S-GTE, 90 Camry DX, '03 WRX wagon, '08 Outback XT
phattyduck is offline   Reply With QuoteReply With Quote
Old 09-13-2024, 03:45 PM #12
4est5speed 4est5speed is offline
Junior Member
 
Join Date: Sep 2017
Location: Napa, CA
Posts: 9
4est5speed is on a distinguished road
4est5speed 4est5speed is offline
Junior Member
 
Join Date: Sep 2017
Location: Napa, CA
Posts: 9
4est5speed is on a distinguished road
Did you ever figure out what the problem was?

X2, nice SAS
__________________
'98 4Runner SR5 4x4//3.4,R150F,4.10's//Evergreen Pearl//2"spacers,265/75r16 BFG AT/KO
---Gone but not forgotten---
86 4Runner,22re/auto->w56 swapped,SAS, RUF/63"s,5.71's,Spartans F/R,Dual cases 4.7/2.28
4est5speed is offline   Reply With QuoteReply With Quote
Old 09-13-2024, 05:54 PM #13
vegask vegask is offline
Member
 
Join Date: Nov 2005
Location: Reno, NV
Age: 47
Posts: 74
vegask will become famous soon enough
vegask vegask is offline
Member
 
Join Date: Nov 2005
Location: Reno, NV
Age: 47
Posts: 74
vegask will become famous soon enough
Quote:
Originally Posted by 4est5speed View Post
Did you ever figure out what the problem was?

X2, nice SAS
I did not. Replaced plugs, wires, IAT, TPS and check valve on the booster.

I figured I was good. Then I did the Rubicon last month and it died about 10 or 11 times going up cadilac hill.

Luckily the brakes held this time on each stall.

So yesterday I replaced the fuel filter and I am planning on dropping the tank and changing the pump next month.
__________________
SAS 97 4runner / Bone stock 2005 4runner / aka "Kurtfab"
vegask is offline   Reply With QuoteReply With Quote
Old 09-15-2024, 12:24 AM #14
ZSW99 ZSW99 is offline
Member
 
Join Date: Dec 2021
Location: Independence Missouri
Posts: 36
ZSW99 is on a distinguished road
ZSW99 ZSW99 is offline
Member
 
Join Date: Dec 2021
Location: Independence Missouri
Posts: 36
ZSW99 is on a distinguished road
I had an occasional stall issue when wheeling that got me a few times. Lost power brakes each time but was able to bump it to neutral each time and get it restarted before I hit any thing. I didnt have any other noticeable issues at the time but slowly what happened over the next few months was I started to get a low/rough idle when hot outside. Never had any codes and spent about 6 months trying nearly everything to fix it. Eventually new o2 sensors fixed the issue but I replaced the injectors too. I haven’t had any stalling issues off-road since then. I can’t say for sure it’s something similar but my first noticeable symptom was stalling off-road so it could just be the first sign of something going bad
__________________
98 Base 4x4 3rz 380k
96 Taco rcsb 4x4 3rz 320k
ZSW99 is offline   Reply With QuoteReply With Quote
Old 09-15-2024, 12:19 PM #15
3bears 3bears is offline
Senior Member
 
Join Date: May 2015
Location: north east of Fairbank out there in the frontiers Alaska
Posts: 3,309
Real Name: 3 Bears
3bears is a splendid one to behold 3bears is a splendid one to behold 3bears is a splendid one to behold 3bears is a splendid one to behold 3bears is a splendid one to behold 3bears is a splendid one to behold 3bears is a splendid one to behold
3bears 3bears is offline
Senior Member
 
Join Date: May 2015
Location: north east of Fairbank out there in the frontiers Alaska
Posts: 3,309
Real Name: 3 Bears
3bears is a splendid one to behold 3bears is a splendid one to behold 3bears is a splendid one to behold 3bears is a splendid one to behold 3bears is a splendid one to behold 3bears is a splendid one to behold 3bears is a splendid one to behold
the more I watch the video, the more I think its fuel pump related, but even still you would think it would have run long enough to get you over the top. How long does it take to restart when on the level ?

what about something like a crank sensor wire that when at the steep angle is grounding out.
__________________
2000 SR-5 Highlander version 4:30's, factory locker , green, bought 6/21
2001 SR-5... bought 11/20..sold 6/21....
2000 SR-5 moded, lifted, e locker, other cool stuff, totaled 10/20
2002 tundra ac v8 4wd
1969 kharmann ghia
3bears is offline   Reply With QuoteReply With Quote
Reply

Tags
4.7s , back , box , crawl , steep

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
Driving down steep fsr bjornbjorn Off-Roading 9 08-22-2022 11:00 PM
5.29 gears too steep for 33s? sam24th Classic T4Rs 17 10-23-2013 10:14 AM
'95 Spilled oil on steep incline?? ryanbigcheese Classic T4Rs 0 06-29-2013 01:56 PM
Gitout - Trask Extreme Hill Climbs - Oct 13, 2012 montypower Off-Roading 0 10-17-2012 11:02 PM
Steep Grades VolFF 4th Gen T4Rs 7 07-28-2007 11:14 PM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 08:07 PM.

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