Maintenance Discuss common Lexus maintenance questions here.

SC300 refuses to stop cranking!

Thread Tools
 
Search this Thread
 
Old 03-31-07, 03:14 AM
  #1  
bluesharp
Driver School Candidate
Thread Starter
 
bluesharp's Avatar
 
Join Date: Jul 2006
Location: CA
Posts: 22
Likes: 0
Received 0 Likes on 0 Posts
Default SC300 refuses to stop cranking!

Okay, here's new one that I bet nobody's read before:

The other day, I went to start my SC300 5-speed with 140K miles. I momentarily turned the ignition key against the spring into the 'start' position. The engine started right up, but when I released the key, the starter CONTINUED TO CRANK the engine! It was clear the starter was being spun by the running engine. Thinking quickly, I removed the key from the ignition - yet the engine still CONTINUED TO CRANK! Shifting into emergency 'save my battery and starter' mode, I yanked open the hood and pulled the negative cable from the battery, and then waited a few minutes. When I reconnected the battery cable, everything seemed normal, so I tried starting the engine - and that started normally, too. That was three days ago, and the car's been fine since.

My question: It this definitely the starter solenoid getting stuck in the 'on' position, or could it be something simpler, like the starter relay or even the ignition switch?
Old 03-31-07, 12:17 PM
  #2  
dreyfus
Racer
 
dreyfus's Avatar
 
Join Date: Jun 2006
Location: NC
Posts: 1,629
Received 10 Likes on 8 Posts
Default

Originally Posted by bluesharp
My question: It this definitely the starter solenoid getting stuck in the 'on' position, or could it be something simpler, like the starter relay or even the ignition switch?
Well, that's a scary scenario!

It could possibly be the relay or ignition, but 9.9 times out of 10 it's the selenoid that's causing the trouble.
Old 03-31-07, 01:55 PM
  #3  
mitsuguy
Maintenance Moderator

iTrader: (2)
 
mitsuguy's Avatar
 
Join Date: May 2005
Location: AZ
Posts: 6,388
Likes: 0
Received 24 Likes on 21 Posts
Default

Originally Posted by dreyfus
Well, that's a scary scenario!

It could possibly be the relay or ignition, but 9.9 times out of 10 it's the selenoid that's causing the trouble.
or 99 times out of 100... whichever you want to hear more...

but, yes, i concur - you've got a starter solenoid sticking, go get you a new/rebuilt one and slap her in there...

chances are you'll never be able to duplicate it when you want to, so getting it diagnosed would be next to impossible...
Old 04-24-07, 08:09 PM
  #4  
vietstuh
Pole Position
 
vietstuh's Avatar
 
Join Date: Apr 2006
Location: SOCAL 909/626
Posts: 321
Likes: 0
Received 0 Likes on 0 Posts
Default

i ran into this problem yesterday. except i removed my negative battery terminal for an hour and then i reconnected it and it just started to crank again nonstop.. going out to buy another starter today. anybody happen to have any starter DIY's?
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Badvw68
RX - 1st Gen (1999-2003)
9
12-03-22 05:29 AM
YoshiMan
LS - 1st and 2nd Gen (1990-2000)
1
10-21-14 05:12 AM
Cruzlnls
LS - 1st and 2nd Gen (1990-2000)
7
01-17-14 06:55 PM
Fredrico55
RX - 1st Gen (1999-2003)
13
05-03-11 09:47 PM
lexus1125
RX - 1st Gen (1999-2003)
8
03-25-08 12:10 PM



Quick Reply: SC300 refuses to stop cranking!



All times are GMT -7. The time now is 06:39 AM.