Reply With QuoteHow old is the radiator core?
Fossicker
After some dramas with some coolant leaks, the mechanic finally replaced the tank cap and fixed a split on the end of a heater hose so now there's no more leaks! Very happy with that, although now I have a different problem..
Driving it back from the mechanics it was fine on the freeway, but when I hit stop-start traffic the temperature gauge would move up to halfway between the middle line and the next white line. Then every once in a while it'll fluctuate up to the next white line and then back down. I drove it to and from the city the other day and the same thing happened.. It doesn't get near the red but any fluctuation gives me a mild heart attack nowadays.
I've done a lot of searches over the past few days and tried a few things but haven't found anything which exactly matches my problem.
-Tested the fan with a roll of newspaper and it's looks strong.
-Tried bleeding a bit last night by running it to warm with the cap off.
-Heater doesn't seem to make a significant difference.
Problems:
-Refilled mainly with tap water and probably way less than a 50/50 mix of red coolant.
-I thought I did a full flush (going from green to red before bringing it back to the mechanic) and all went well, except when refilling a lot of green came out of the top radiator nipple so I let this all spill out before reconnecting the hose. Don't think sludge would've formed in a couple of days and with minimal green??
-My aircon never worked when I got it and hasn't ever really blown cold air. I don't get the book warning anymore.
So in summary the temp is slightly above dead centre and fluctuates when I stop in traffic. Any ideas?
How old is the radiator core?
Fossicker
I have no idea, just bought the car. I was thinking I may need it cleaned or replaced?Originally Posted by Tombie
Major part of the heart and soul of AULRO.comDo NOT let it overheat. They are intolerant of overheating. That will bring you a world of grief.
Ron B.
VK2OTC
2003 L322 Range Rover Vogue 4.4 V8 Auto
2007 Yamaha XJR1300
Previous: 1983, 1986 RRC; 1995, 1996 P38A; 1995 Disco1; 1984 V8 County 110; Series IIA
RIP Bucko - Riding on Forever
I would be fitting a new radiator or at the least having it cored.
Has the thermostat been replaced?
Not a bad idea either.
Fossicker
By overheat do you mean above middle or past the H?
It wasn't doing this before the leak was fixed (in the one day I drove it lol) so not sure if it's something else.
Master
SupporterTry checking the return tube in the reservoir is not clogged up. Its connected to the radiator top (drivers side and small tube connects into reservoir. This can cause problems. easy to test . disconnect from radiator and see if you can easily blow through the pipe ( take cap off top up tank to allow free air flow when testing)
Fossicker
I did that after the flush, but do you suggest I do it again?
Wizard
If the rad is partially blocked, once stationary you can get temp rising above normal. When all is ok my car never ventures from the 12 oclock even in extreme heat here in Perth. The Rad tanks get brittle so the chances of removal and refit are slim to zero. A new rad is about $300 on ebay and 30 mins to fit.
Master
SubscriberHey Paolo
Just PM'd you re catch up - as far as radiator goes check there is no obstructions from grille thru to radiator ie mud build up etc. also make sure system is properly bleeded ( had to wonder re flush when you changed fluid and some old green stuff came out)
I have a Aussie Dessert cooler in mine now but even old radiator hardly went over centre unless very hot day until I snapped exp tank fitting and i continually seeped!
Would conside changing thermostat & check water pump & hosesalso heater hoses!
Martin
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