3rd Generation Specific (1993-2002) 1993-2002 Discussion including performance modifications and Technical Support Sections.
Sponsored by:

Coolant sensors...

Thread Tools
 
Search this Thread
 
Old 07-21-11, 10:33 AM
  #1  
Junior Member
Thread Starter
 
OKI92FD's Avatar
 
Join Date: Mar 2011
Location: Okinawa, Japan
Posts: 46
Likes: 0
Received 0 Likes on 0 Posts
Coolant sensors...

Yep, searched... No luck. One of my sensors on the fill tube/thermostat housing cracked and snapped off recently. I'm not sure what it does though...

All the threads I've found on the subject mention 3 sensors. Thermo and temp on back, level sensor on front. The black sensor in the pic is level, and that's working fine. Fans are controlled via PFC and datalogit. PFC temps are reading normal. That makes me think my level, temp, and thermo sensors are good. So what could this sensor be then? Take a look at this pic:


92 JDM fd, 5spd swap all other details are irrelevant.

Sorry for caveman post from iPhone.
Old 07-21-11, 10:46 AM
  #2  
Mr. Links

iTrader: (1)
 
Mahjik's Avatar
 
Join Date: Aug 2001
Location: Kansas City, MO
Posts: 27,595
Received 40 Likes on 26 Posts
Originally Posted by OKI92FD
92 JDM fd, 5spd swap all other details are irrelevant.
Actually, they aren't irrelevant. The automatics have an extra temp sensor that manuals do not have which is what you are point to.
Old 07-21-11, 11:04 AM
  #3  
Mr. Links

iTrader: (1)
 
Mahjik's Avatar
 
Join Date: Aug 2001
Location: Kansas City, MO
Posts: 27,595
Received 40 Likes on 26 Posts
Arrow

An old thread:

https://www.rx7club.com/3rd-generation-specific-1993-2002-16/thermoswitch-location-automatic-288025/
Old 07-21-11, 11:09 AM
  #4  
Junior Member
Thread Starter
 
OKI92FD's Avatar
 
Join Date: Mar 2011
Location: Okinawa, Japan
Posts: 46
Likes: 0
Received 0 Likes on 0 Posts
Ahhh thanks. I'm boggled as to what it does though...

I know the auto tranny circulates (ATF) fluid through a chamber on the radiator. Does that have anything to do with the operation of this sensor?

Btw, I mentioned 5spd swap as relevant info lol.
Old 07-21-11, 12:27 PM
  #5  
Mr. Links

iTrader: (1)
 
Mahjik's Avatar
 
Join Date: Aug 2001
Location: Kansas City, MO
Posts: 27,595
Received 40 Likes on 26 Posts
I'm not sure, but probably another thermoswitch to be activated based on the transmission cooling. I've never owned an auto FD so I've never needed to know to be honest. I provided the link above as it references some pages in the FSM. If you are curious, you can research the pages in the FSM as referenced in the link provided.
Old 07-21-11, 06:10 PM
  #6  
Stock boost FTW!

iTrader: (22)
 
Project88Turbo's Avatar
 
Join Date: Nov 2004
Location: Berlin, MD
Posts: 1,134
Received 110 Likes on 71 Posts
If it is anything like the logic used on the FC, it locks up the torque converter once it gets past a certain temperature to try to lower the heat generated by the transmission in an effort to reduce the likelyhood of overheating.

Vince
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
LongDuck
1st Generation Specific (1979-1985)
12
10-07-15 08:12 PM
musker
New Member RX-7 Technical
1
10-01-15 05:58 PM



Quick Reply: Coolant sensors...



All times are GMT -5. The time now is 06:56 AM.