Water temp sending unit 4.0 - Defender Source
Defender Source  

Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions


Reply
 
Thread Tools
  #1  
Old March 23rd, 2011, 05:06 PM
97-D90-736
Status: Offline
Nick Vogel
1997 D-90 / 2012 LR4
Member
 
Join Date: May 2009
Location: Houston, Texas
Posts: 508
Water temp sending unit 4.0

Please see pic. Which one is the ecu sending and which one is the gauge? I think the two wire up front is ecu andthe single wire is gauge (behind).

Thanks!

Nuck
Attached Thumbnails
Click image for larger version

Name:	image-1312761394.png
Views:	103
Size:	805.2 KB
ID:	37205  
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old March 23rd, 2011, 05:52 PM
Roverchef's Avatar
Roverchef
Status: Offline
Jake K.
95 D90 SW
Member
 
Join Date: Jan 2010
Location: Deep in the Dirty South
Posts: 341
The ECU one is the two wire one that is leaking in your photo. The single wire one is just for the gauge.
Reply With Quote
  #3  
Old March 23rd, 2011, 06:44 PM
97-D90-736
Status: Offline
Nick Vogel
1997 D-90 / 2012 LR4
Member
 
Join Date: May 2009
Location: Houston, Texas
Posts: 508
Quote:
Originally Posted by Roverchef
The ECU one is the two wire one that is leaking in your photo. The single wire one is just for the gauge.
Thanks. Does anyone happen to know the size of the gauge ending unit? I want to change out the gauge but need to match S.U.

I'm fixing the ecu one now.
Reply With Quote
Sponsored Links
Advertisement
 
  #4  
Old March 23rd, 2011, 06:59 PM
Roverchef's Avatar
Roverchef
Status: Offline
Jake K.
95 D90 SW
Member
 
Join Date: Jan 2010
Location: Deep in the Dirty South
Posts: 341
i would leave it alone. People have all kinds of issues with the aftermarket ones. They work fine as long as the connection at the sending unit is good and clean. The gauge rarely goes bad....I've seen maybe 5 go bad in 20yrs! Spend the $$$ somewhere else.
Reply With Quote
  #5  
Old March 24th, 2011, 02:32 PM
Paul Davis's Avatar
Paul Davis
Status: Offline
Paul Davis
97 ST
Member
 
Join Date: Jul 2006
Location: Pembroke Pines, FL
Posts: 281
You might use an infrared thermometer at the sending unit to determine if the gauge is bad or the sender. Unfortunately, I had a bad gauge and replaced a lot of stuff (fan clutch, thermostat, OEM sender) for what ended up costing like 60 bucks for a new VDO gauge and sender. They came from NAPA and the part numbers are on here somewhere for the replacement, if that's how you have to go.
Reply With Quote
  #6  
Old March 24th, 2011, 03:42 PM
Roverchef's Avatar
Roverchef
Status: Offline
Jake K.
95 D90 SW
Member
 
Join Date: Jan 2010
Location: Deep in the Dirty South
Posts: 341
Just pull off the wire that goes to the sender and ground it. If the gauge does a full sweep and ends deep in the red than it is good. If it hangs or stops short of the red than the gauge is suspect. Simple tests are the best!
Reply With Quote
Reply

Lower Navigation
Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions

Tags
water

Thread Tools

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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
fuel gauge ohm range naeirie Defender Technical Discussions 35 September 6th, 2017 02:49 PM
4.0 Temp sensor Size 97-D90-736 Defender Technical Discussions 2 December 31st, 2010 12:26 AM
Temp sending unit 3.9L vs 300TDI - different range? jaherring Defender Technical Discussions 8 October 4th, 2010 08:22 PM
Best way across the US Mike Hippert Defender Technical Discussions 173 April 29th, 2010 04:56 PM
water temp stabilizer switch david jenson Defender Technical Discussions 1 June 16th, 2004 08:50 PM


All times are GMT -5. The time now is 01:42 AM.


Copyright