slow coolant leak - Defender Source
Defender Source  

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


Reply
 
Thread Tools
  #1  
Old January 7th, 2008, 06:29 PM
defender1844
Status: Offline
Amit Likhyani
95 D90 Soft Top Estoril Blue 6.2 LS
Member
 
Join Date: Dec 2005
Location: Las Vegas, NV
Posts: 575
slow coolant leak

Couldn't find this in search. I apologize if it's already out there. I have a 1997 D90 with 109k miles on it. The radiator had sludge and was sent out to a radiator shop a year and a half ago. Just to give some background. Now, every 4 months I need to add 1/2 gallon of antifreeze after the needle moves up. This solves the problem for a little while. I don't see coolant on the ground although occassionally I can smell it. What is the best way to diagnose this? I am hoping it's a connection or hose and not an internal water jacket or head gasket. But I am prepared for whatever.
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old January 7th, 2008, 06:51 PM
Gore Ranger's Avatar
Gore Ranger
Status: Offline
Jeff
1989 RRC
Member
 
Join Date: Jan 2006
Location: Denver, CO
Posts: 536
can you see any little puddles under the hood?
Reply With Quote
  #3  
Old January 7th, 2008, 07:33 PM
revtor's Avatar
revtor
Status: Offline
Steve Maietta
1969 IIA 88" Bugeye
Member
 
Join Date: Sep 2006
Location: Northern NJ, USA
Posts: 817
Registry
might be a leaky expansion tank??

~Steve
Reply With Quote
Sponsored Links
Advertisement
 
  #4  
Old January 7th, 2008, 08:23 PM
imola's Avatar
imola
Status: Offline
John
97 D90 SW
Member
 
Join Date: Dec 2007
Location: NYC
Posts: 90
check the water pump as well.
Reply With Quote
  #5  
Old January 7th, 2008, 08:24 PM
Uncle Douglas's Avatar
Uncle Douglas
Status: Offline
Doug Crowther
A defender in every driveway-motto
D-90 Source Vendor
 
Join Date: Dec 2007
Location: Gods Country- Central Virginia
Posts: 11,844
Registry
Heater core ? This are famous leaking points on Range Rover classic's
Reply With Quote
  #6  
Old January 7th, 2008, 09:59 PM
Grover's Avatar
Grover
Status: Offline
Mike
Birmabright Bread Box/Swagger Wagon
Member
 
Join Date: Dec 2005
Location: Cincinnati, Ohio
Posts: 1,857
Registry
Is it possible that it is running down the block and buring off? Look under the motor and inspect the head and block mating surfaces...
__________________
LR3 sidesteps with rocker panels for sale $400


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote
  #7  
Old June 13th, 2008, 01:38 PM
Turd Ferguson's Avatar
Turd Ferguson
Status: Offline
Frank
94 D-90
Member
 
Join Date: Dec 2006
Location: Nashville
Posts: 8
Iam experiencing the same problem and cant figure out what to blame it on. Did you ever diagnose the problem?
Reply With Quote
  #8  
Old June 13th, 2008, 02:04 PM
evilfij's Avatar
evilfij
Status: Offline
evilfij
I have never seen a rover in person
Member
 
Join Date: Oct 2003
Location: on the internet
Posts: 14,688
When the car is running, is the upper radiator hose pressurized? If not, I am going with the water pump is leaking. Also check the back of the block as the intake gasket and head gaskets like to leak. Heater cores on D90s do not seem to be a huge problem issue, but you could bypass it easy enough to check.

Ron
__________________
*not legal advice*
Reply With Quote
  #9  
Old June 13th, 2008, 02:05 PM
Neil McCauley's Avatar
Neil McCauley
Status: Offline
Neil McCauley
94 ST, 97 ST, 93 110
Member
 
Join Date: Aug 2006
Location: Los Angeles
Posts: 2,366
Could also be a porous block ( worst case scenario ) ex: coolant leaking into combustion chamber and being burned away. It's rare but possible if nothing else seems to make sense. It's also my understanding that if you get a porous block you have to buy a new one.
__________________
A guy told me one time "don't let yourself get attached to anything you are not willing to walk out on in 30 seconds flat if you feel the heat from around the corner"

Robert Deniro
Reply With Quote
  #10  
Old June 13th, 2008, 02:21 PM
revtor's Avatar
revtor
Status: Offline
Steve Maietta
1969 IIA 88" Bugeye
Member
 
Join Date: Sep 2006
Location: Northern NJ, USA
Posts: 817
Registry
If you can smell it, then its evaporating somewhere.. this means its running or dripping on the engine. Might also be a leaking heater core, you'd smell it when you run the heat.. Check the thermostat housing, maybe the waterpump.

~Steve
__________________
"Yeah, make sure its a flatbed...."
Reply With Quote
  #11  
Old June 13th, 2008, 02:28 PM
Gore Ranger's Avatar
Gore Ranger
Status: Offline
Jeff
1989 RRC
Member
 
Join Date: Jan 2006
Location: Denver, CO
Posts: 536
I have had problems with my range rover in the past.

Twice it was as simple as the hose clamps had loosened. Once it was a bad hose that must have had a pin hole in it.

One other time, my water pump was leaking through the purge valve. If it is the water pump, you would definitely see coolant on the ground in my experience. Every time I parked, it spewed out some water on the ground.

However, in all the instances, the radiator still cooled the water adequately.

If the temp is rising, your radiator might be due for a replacement. I had mine flushed at one point but that only seemed like a stopgap.

What I was told that worked for me was to idle the truck until it reaches temperature and observe under carefully under the hood.
Reply With Quote
  #12  
Old June 18th, 2008, 05:03 AM
defender1844
Status: Offline
Amit Likhyani
95 D90 Soft Top Estoril Blue 6.2 LS
Member
 
Join Date: Dec 2005
Location: Las Vegas, NV
Posts: 575
I got my truck to start again. It was the connector to the fuel pump. Big props to Atomic 4x4 in Cedar Park, TX. They specialize in Jeeps and do great work on them. As a favor they have done some work on my Defender as my former employer was 2 miles from their shop. With that plug out of the way, the next issue is the slow coolant leak. Since there are drops under the truck, I think it's a water pump leaking as this is the stock water pump on a truck with 112,000 miles on it. Is there a better source than Rover's North for $278? I'll take used and working perfectly.
Reply With Quote
Reply

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

Tags
coolant

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
COOLANT LEAK, PLEASE Read this and help if you can...Thank you!! norros Defender Technical Discussions 15 December 21st, 2008 12:18 PM
Coolant Leak - Help! mlw911 Defender Technical Discussions 6 March 15th, 2006 11:08 AM
Coolant hose leak - cure in a can question michael15 Defender Technical Discussions 3 May 21st, 2005 11:36 PM
coolant leak jperakis Defender Technical Discussions 2 February 27th, 2005 02:39 AM
Small coolant leak near distributor Neo Defender Technical Discussions 4 May 4th, 2004 01:44 PM


All times are GMT -5. The time now is 06:07 AM.


Copyright