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1-19 of 54 Results
  1. Pre - 2016 Defender Technical Discussions
    Popped the coolant reservoir cap the other day and sprayed coolant everywhere. I was able to remove the threaded section inside the pipe and replaced the cap and o-ring. Refilled the coolant but my truck is overheating. Any ideas what might be causing it? The truck was running perfectly...
  2. Series 1, 2, and 3 Technical Discussions
    My 1972 Series 3 2.25 petrol engine seems to overheat. The gauge moves slowly but constantly into the red within a mile of driving. I changed the water pump first. Didn't help. Then changed the thermostat, didn't help. Then changed the water temp sensor, you guessed it, also didn't help. And...
  3. Pre - 2016 Defender Technical Discussions
    My 300tdi is overheating regularly. This has been going on for around 5 months now. When going uphill, or accelerating to merge on the highway, it will get up to around 215 degrees, stay there for 30 seconds or so, and then rapidly cool back down. It's always at the high end of operating...
  4. Pre - 2016 Defender Technical Discussions
    Hi guys, took my 97 Defender 300tdi for some mellow offroading with some mud puddles. Next day I had a bearing (or possibly belt) squeal from the engine compartment. Squeal went away after 5 minutes of driving. Half hour later, highway driving, I noticed temp going to high. Slowed down. Temp...
  5. Pre - 2016 Defender Technical Discussions
    Well, I am creating more gray hairs than I'd like to see with respect to my '95 NAS 90... I am experiencing overheating issues and have replaced everything in the cooling system - a new radiator, a new fan assly, a new thermostat, all new hoses (incl the ss braided oil cooler lines), new...
  6. Pre - 2016 Defender Technical Discussions
    Morning - Just got a 110 200TDI to sit along side my D90. I drove it for the first time this morning (0 degrees F in Mass) and it was running fine and driving well. I did note the temp gauge came up quicker than i thought (5mins) it would to half way then it went just shy of the red(10mins)...
  7. Pre - 2016 Defender Technical Discussions
    My 94 3.9 is acting up again. She's been running like a champ since her header overhaul other top end engine TLC. A couple days ago was driving home - noticed that sweet smell of coolant (no heater running) and immediately turned her off and popped the hood. No signs of issues other than...
  8. Pre - 2016 Defender Technical Discussions
    My 91 RHD 200tdi D90 is is overheating when on the highway. In the city it runs nicely. I've hypothesized that having the turbo engaged for an extended period of time is the culprit. Anyone have a similar experience? Replaced thermostat Flushed radiator We have some evidence that it's getting...
  9. Pre - 2016 Defender Technical Discussions
    So my Defender has not been run for about 4 weeks due to an issue with an immobilizer that would not switch off. Just got that sorted and its now back and running. However the temp gauge is now going very high and occasionally in the RED after just a few miles. Coolant levels were fine. I...
  10. Pre - 2016 Defender Technical Discussions
    I'd search, but I'm strapped for time and using an iphone... My engine is overheating and the heater is not working... I've replaced the thermostat, but no luck. What's the next plan of attack? Water pump? Thanks guys!
  11. Pre - 2016 Defender Technical Discussions
    I recently purchased a NAS 110 and it's running hot. It was a gradual sweep from cool up to hot. I started with the thermostat but no luck. The way it was getting hot led me to believe the problem was the radiator. Installed a new radiator and truck still runs hot. My fan clutch is...
  12. Pre - 2016 Defender Technical Discussions
    Some of you know, but I picked up a P38 last week. Drove about 2 hrs to find it overheating as soon as I pulled out of the lot. The previous owner recently put in a new thermostat and upper radiator hose. I passed and started the trek home when I got a call and we agreed on a price I couldn't...
  13. Pre - 2016 Defender Technical Discussions
    I have recently had problems with my D-90 overheating. I got a new water pump and hoses, a new thermostat, got the radiator rodded out, and still don't know what is wrong. I have been told that the fan clutch might be the issue but i also was told that if I get the radiator fixed, I wouldn't...
  14. Pre - 2016 Defender Technical Discussions
    I know why I'm over heating ... It's because I'm losing water ... Sorry about the title ... Just need some help here! I just drove 250 miles to Marthas vineyard from NYC, did another 100 pottering round the island ( saw 3 SW's and 2 series ) ... 150 miles into the trip back ... Temp rises a...
  15. Pre - 2016 Defender Technical Discussions
    Long story short, I replaced the gauge with the later style (I believe, bought it second hand and it's installed now, so I can't see it at the moment to get numbers off it, but that is the next check. I removed the signal conditioner and now the vehicle keeps overheating. I am not sure it...
  16. Pre - 2016 Defender Technical Discussions
    I have the dreaded overheat issue and decided to utilize some borrowed technology. My situation goes like this. Needle creeps close to red under load both at highway speeds and crawling. I have not experienced a boil over or steam. I have attempted to; Top off coolant Replace thermostat Check...
  17. Pre - 2016 Defender Technical Discussions
    Recently got a '94 w/3.9, last owner did a horrible job wiring up a dual fan for the radiator. Now one of the fans doesnt come on and the beast keeps overheating. I'm going to be getting a diesel swap done in the fall when I redeploy, but need something that will work in the time being and not...
  18. Pre - 2016 Defender Technical Discussions
    Just curious if this is a scenario which could happen... if that bypass can't flow freely could things get too hot?
  19. Pre - 2016 Defender Technical Discussions
    Hey guys, Okay...the never ending heating issues. First I will tell you what I have done then I need your help. Engine was overheating once the car had stopped (redlight or traffic) and would not return. What I have done so far: New thermostat. with Fail open Auto Zone $13 Radiator Flush...
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