Notices
SC - 1st Gen (1992-2000)

Throttle stuck wide open at 14psi

Thread Tools
 
Search this Thread
 
Old Mar 11, 2013 | 03:55 PM
  #1  
sj408's Avatar
sj408
Thread Starter
Instructor
iTrader: (6)
 
Joined: Apr 2009
Posts: 938
Likes: 1
From: ca
Default Throttle stuck wide open at 14psi

Hey guys, so just experienced one of the craziest moments in my sc owning life.

Headed down the freeway the lane i was in merged into 1 so i quickly get on it to pass the truck and once i pass the truck i let off at about 75-80 wellllllllllllllllll my car decided to keep going so here i am now doing 110+ weaving in and out of cars yelling at the top of my lungs stomping the pedal up and down trying to regain cable feel.

After throwing it in neutral and bouncing off the rev limiter i finally get it off the road and turn it off, after about 5 minutes i start it up and its fine.

Now noticing on the way home every time i go WOT it sticks,

Narrowed it down to the springs in the throttle cable assembly being worn out or something, first i though it must be the WOT switch shorting out but no upon further inspection of throttle and trans cables when you pull them tight as if going WOT they stick in the same position. Also springs feel very worn out.

figured id share this scary *** experience with my sc bretherin
Reply
Old Mar 11, 2013 | 04:21 PM
  #2  
93Gotjuice's Avatar
93Gotjuice
Pole Position
iTrader: (6)
 
Joined: Dec 2012
Posts: 361
Likes: 0
From: Socal* *
Default

Same **** happen to me me on my auto sc like 2 months ago almost **** my pants since im not really a auto guy so i didnt really know what to do. Put it in neutral and push on the brakes and man my throttle cable got stuck. Didnt know pulled into a gas station . Didnt know why it got stuck now i don't push all the pedal down. Only difference i was on a public street and my car isnt turbo but still lol.

Glad your okay. Scared the heck outta me too.
Reply
Old Mar 11, 2013 | 04:37 PM
  #3  
Ali SC3's Avatar
Ali SC3
Lexus Champion
CL Folding 100,000
15 Year Member
Liked
Community Favorite
iTrader: (10)
 
Joined: Oct 2007
Posts: 10,806
Likes: 469
From: CO
Default

sounds like craziness, good thing you guys had the smarts to put it in neutral.
may want to replace the throttle body or figure out whats wrong while the car is off.
I would think if it sticks it should do it when its not moving also.

you gotta remember in those emergency situations not to shut it off cause you will loose power steering and brakes = no good.
Reply
Old Mar 11, 2013 | 05:01 PM
  #4  
biturbo632's Avatar
biturbo632
Pole Position
 
Joined: Mar 2011
Posts: 211
Likes: 5
From: Quebec, Canada
Default

Maybe a little lubricating into the sheath of the cable, the spring and everything.. moving it by hand a lot... and also lubricate the pedal side too... may help to not stock.

I've experience it with a camry.. stock at 3000rpm, dust has made is way into the cable sheath soo it stock.. WD-40 solved it!
Reply
Old Mar 11, 2013 | 05:38 PM
  #5  
sj408's Avatar
sj408
Thread Starter
Instructor
iTrader: (6)
 
Joined: Apr 2009
Posts: 938
Likes: 1
From: ca
Default

Originally Posted by Ali SC3
sounds like craziness, good thing you guys had the smarts to put it in neutral.
may want to replace the throttle body or figure out whats wrong while the car is off.
I would think if it sticks it should do it when its not moving also.

you gotta remember in those emergency situations not to shut it off cause you will loose power steering and brakes = no good.


Yeah man, scared the **** outta me. Ended up being the old vacuum ports im not using were sticking in the t/b and causing it to stick. smh that was close.
Reply
Old Mar 11, 2013 | 06:43 PM
  #6  
1JZPWRD's Avatar
1JZPWRD
1JZ Single SC400
iTrader: (59)
 
Joined: Jan 2009
Posts: 8,518
Likes: 17
From: Alabama, Roll Tide!
Default

Glad no one was killed or seriously injured. Everyone check their cables and lube them NOW!!!!
Reply
Old Mar 11, 2013 | 07:25 PM
  #7  
crenfro's Avatar
crenfro
Driver
iTrader: (2)
 
Joined: Oct 2012
Posts: 141
Likes: 0
From: Indiana
Default

WOW, just reading this made me nervous haha I couldnt imagine how scary that would've been.

Glad your okay man and I'm going to go check on mine now
Reply
Old Mar 11, 2013 | 07:26 PM
  #8  
mikevandam's Avatar
mikevandam
Driver
iTrader: (3)
 
Joined: Jul 2011
Posts: 123
Likes: 0
From: FL
Default

Jeeze I can't imagine going 110 and cant stop quickly. Scary stuff. Thank the Lord that it hasn't happened to me yet.
Reply
ClubLexus Stories

Celebrating Lexus & Toyota from Around the Globe

story-0

10 Lexus Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-1

8 Tips for Improving Your Hybrid or Plug-in Hybrid's Efficiency!

 Michael S. Palmer
story-2

10 Best Lexus Models No One Remembers

 Joe Kucinski
story-3

TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing

 Michael S. Palmer
story-4

Top 10 Lexus & Toyotas to Drive Before You Die!

 Joe Kucinski
story-5

Top 10 Lexus/Toyotas With The LEAST 5-Year Depreciation

 Joe Kucinski
story-6

Lexus LC500 Convertible Auction: A Preview of Rising Values?

 Brett Foote
story-7

GX 550 vs TX 550: Best 3-Row Luxury Lexus Family Hauler

 Michael S. Palmer
story-8

9 Best Lexus Models You Can Buy for Half Price (And 1 You Shouldn't!)

 Joe Kucinski
story-9

2026 Lexus NX Buyer's Guide: Models, Features, Prices & More!

 Brett Foote
Old Mar 11, 2013 | 08:51 PM
  #9  
sj408's Avatar
sj408
Thread Starter
Instructor
iTrader: (6)
 
Joined: Apr 2009
Posts: 938
Likes: 1
From: ca
Default

Originally Posted by crenfro
WOW, just reading this made me nervous haha I couldnt imagine how scary that would've been.

Glad your okay man and I'm going to go check on mine now
Yeah, was a crazy feeling. It was only cause of the vacuum ports being loose and allowing them to bind the cable from recoiling.
Reply
Old Mar 12, 2013 | 01:04 AM
  #10  
93Gotjuice's Avatar
93Gotjuice
Pole Position
iTrader: (6)
 
Joined: Dec 2012
Posts: 361
Likes: 0
From: Socal* *
Default

Originally Posted by Ali SC3
sounds like craziness, good thing you guys had the smarts to put it in neutral.
may want to replace the throttle body or figure out whats wrong while the car is off.
I would think if it sticks it should do it when its not moving also.

you gotta remember in those emergency situations not to shut it off cause you will loose power steering and brakes = no good.

Thanks will check tomorrow when i have time. Don't want to go through that again
Ahaha
Reply
Old Mar 12, 2013 | 05:37 AM
  #11  
Maserati's Avatar
Maserati
Advanced
iTrader: (1)
 
Joined: Jan 2010
Posts: 596
Likes: 13
From: Fl
Default

HFS! Glad you came out okay man, and at 14Psi, thats a miracle!
Reply
Old Mar 12, 2013 | 06:38 AM
  #12  
1slowsc's Avatar
1slowsc
Driver
iTrader: (2)
 
Joined: Nov 2010
Posts: 105
Likes: 0
From: ca
Default

damn sounds scary as hell. Did you shut off your motor while your was coming to a stop or already stopped?
Reply
Old Mar 12, 2013 | 09:37 AM
  #13  
sj408's Avatar
sj408
Thread Starter
Instructor
iTrader: (6)
 
Joined: Apr 2009
Posts: 938
Likes: 1
From: ca
Default

Originally Posted by Maserati
HFS! Glad you came out okay man, and at 14Psi, thats a miracle!
yeah, my car pulls like hell on the top end so it was incredibly scary

Originally Posted by 1slowsc
damn sounds scary as hell. Did you shut off your motor while your was coming to a stop or already stopped?
no, waited till i was stopped to shut my motor off. You lose all power steering and brakes if your shut the motor off which would likely be more catastrophic at those speeds
Reply
Old Mar 12, 2013 | 10:09 AM
  #14  
SC400slide's Avatar
SC400slide
In Recovery Mode
CL Folding 25,000
iTrader: (11)
 
Joined: Apr 2012
Posts: 3,871
Likes: 36
From: NM
Default

Yikers...I think I'll go WD40 my throttle cable assembly just to be safe...glad nobody got hurt and no police saw you...
Reply
Old Mar 12, 2013 | 10:26 AM
  #15  
ashtray's Avatar
ashtray
Pole Position
iTrader: (12)
 
Joined: Jun 2008
Posts: 3,313
Likes: 1
From: Texas
Default

In all seriousness...this just happened to me but on a 5spd with no turbo the other night. I went WOT in fourth and when I shifted to fifth the car hit the rev limiter and just kept doing it like crazy, then when I put it into fifth gear and just kept slapping the gas pedal until it finally popped back.

Basically I should inspect the throttle body assembly for worn springs and dry lines? Thanks it was actually a scary thing.

P.S. This all happened in a matter of 10-15 seconds from the moment I let off in fourth and it kept going all the way until it bounced back as I was hitting it in fifth gear.
Reply



All times are GMT -7. The time now is 08:44 PM.

story-0
10 Lexus Designs That Have Aged Like Fine Wine

Slideshow: Some luxury cars chase trends, but these Lexus models look better now than they did when they first rolled into showrooms.

By Verdad Gallardo | 2026-05-06 17:58:29


VIEW MORE
story-1
8 Tips for Improving Your Hybrid or Plug-in Hybrid's Efficiency!

Slideshow: How to Get the Best Fuel Economy with a Hybrid and Plug-In Hybrid!

By Michael S. Palmer | 2026-05-05 20:54:44


VIEW MORE
story-2
10 Best Lexus Models No One Remembers

Slideshow: 10 best Lexus models no one remembers.

By Joe Kucinski | 2026-05-05 17:33:28


VIEW MORE
story-3
TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing

Slideshow: diving into 4Runner TRD Off-Road Premium's pricing, performance, fuel economy, features, and amenities!

By Michael S. Palmer | 2026-04-23 13:09:18


VIEW MORE
story-4
Top 10 Lexus & Toyotas to Drive Before You Die!

Slideshow: the 10 Lexus and Toyota vehicles you need to drive before you die.

By Joe Kucinski | 2026-04-23 10:34:24


VIEW MORE
story-5
Top 10 Lexus/Toyotas With The LEAST 5-Year Depreciation

Slideshow: Top 10 Lexus/Toyota models with the lowest 5-year depreciation rate.

By Joe Kucinski | 2026-04-08 12:19:06


VIEW MORE
story-6
Lexus LC500 Convertible Auction: A Preview of Rising Values?

The LC hasn't even disappeared from the Lexus lineup yet, and we're already seeing signs of an explosive market.

By Brett Foote | 2026-04-06 09:25:02


VIEW MORE
story-7
GX 550 vs TX 550: Best 3-Row Luxury Lexus Family Hauler

Slideshow: comparing the pricings, specs, power, fuel economy, fun-factor, and features of the GX 550 Luxury+ and TX 550h+ Luxury.

By Michael S. Palmer | 2026-03-19 13:44:11


VIEW MORE
story-8
9 Best Lexus Models You Can Buy for Half Price (And 1 You Shouldn't!)

Slideshow: 9 best Lexus models you can buy for half price and 1 you should avoid

By Joe Kucinski | 2026-03-19 12:01:07


VIEW MORE
story-9
2026 Lexus NX Buyer's Guide: Models, Features, Prices & More!

Here's everything you need to know about the latest NX.

By Brett Foote | 2026-03-19 11:56:59


VIEW MORE