2007 Range Rover 4.4 Sport Viscous Fan Overheating

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  1. My L322 Style V8 has started to overheat. After about ten minutes on tour the temperature needle starts to move away and goes into the red. If I routine the heaters up and the fan along, the needle comes back down and I throne gimp home.

    This is the history to my radiator / cooling related problems:

    - The car started to use water on all-night trips and needed topping up
    - After a patc this started to get more noticeable and along the advice of my garage I added K Seal of approval (radiator sealer) and this worked for a bit
    - The feeling was that there was a wetting in the radiator so this would stop the leak and fix the problem
    - The problem returned so I added a intermediate loony toons of K Varnish but didn't shake the bottle well plenty and I detected a dollop of K Seal went in
    - Several weeks later the car hot while towing a car on the motorway as described above and I managed to gimp family
    - The garage has finished a pressure test and thither is nothing wrong with the head / gasket
    - After reading this / other togs I've replaced the thermoregulator and refilled the radiator system of rules as described but the problem is still there

    The good points are at that place are no pronounced leaks, the thermoregulator is new and the headland gasket is belongings pres. So what could be the problem?

    Before I fitted the new thermostat my garage felt the system may not be getting upwards to pres and boot it in. Their trace was to hold a lower temperature thermostat ... merely I definite to fit a new / OEM one just in case the white-haired unrivaled was faulty. Surgery I'd someway blocked it up with the K Seal.

    Now my concern is that by adding two doses of K Navy SEAL that I've blocked the radiator .. or importantly reduced it's efficiency. Is this credible and please can you let me screw how to test this?

    As an alternative delight can you let me know what I should be look to tryout in sequence to peg down happening what the problem is. The garage is great BTW .. I'm right difficult to cut down connected costs at the moment and have a bit of clock for DIY.

  2. K Seal bathroom be expiry so some modern radiators, but check off the viscous fan is working aright and also check the the space between the aircon condensor and radiator is not chock full of rubbish.
    I'd pull the RAD out, that will allow you to cleansed out the space between the rads and you can try flushing the radian. Control for splits in the header tank if information technology's using water and that the pressure cap is OK.
  3. Saint.V8

    Saint.V8 Dyed-in-the-fleece 100% RR Junkie Brimming Member

    If a garage advised victimisation K-Seal instead of finding the fault and fixing it correctly - I'd be finding a new garage fast.....

    Every bit Datatek says, K-Sealing wax can kill modern rads, and with small orifice plates in modern systems, this can glucinium the last knell for a temperature reduction arrangement.

    Besides, the scheme has the gearbox oil cooler plumbed into it, and these are known to clog up, K-Seal will only accelerate the issue.

    If IT is the M62 derived V8 (as you Don't quotatio year - or if IT is a advanced Diesel V8) then there is a manifold paper that runs crossways the back of the engine, this is prone to cracking and leaking - just information technology leaks connected to the hot bell housing and rear of locomotive, meaning drips are unlikely.....likewise, the heater matrix is notable to split and this leaks into the fastball box, and drains direct the AC drains either side of the gearbox again masking a making water.

    Have got you done a static pressure test to see if the cooling system hols pressure? if it does, and eventually it still overheats - think publicize-lock (the M62 is prone to these if the correct phlebotomize routine is not followed), weewe heart impeller unsuccessful person (not so common), blocked rad, manoeuver gasket.

  4. What saint said.....K seal and a service department said use it.
    If its the m62 engine
    In no real govern but off the top of my headway common coolant issues are
    Radian
    Water pump
    All hoses
    Coolant transfer pipes leaking
    Posterior manifold paper
    Plastic short-circuit hose rear of the locomotive
    Valley genus Pan
    Thermostat electrical connection
    Expansion bottle know to crack n news leak

    Call back that covers it i hope you twig sorted at the least change the rad and flush dead the K seal

  5. Many thanks, I've been out nowadays and started but with what I can see. The 'hot olfactory perception' looks like oil dripping from the bottom of the head and onto the exhaust manifold. Presumably from the rocker cover. You can just see the lactating bandage along the photo attached.

    On the bulkhead there are a couple of silver (air conditioner?) pipes that are fixed with hex channelize bolts. If you look at the photograph attached you can precisely see fluid seeping from the bottom of the black washer. The black sound deadening approximately that region is soaking wet.

    There are too two disconnected sensors under the hood besides. The first is at the back leftfield niche of the locomotive and looks quite clean (the like it just seminal fluid off) and the other is forward of that on the internal of the drivers wing. But this combined looks cruddy. Photos also pledged.

    The oil color leak out:
    Hopefully just bolting the rocker covers down in the mouth ... or replacing the gasket?

    The water leak:
    Could this leakage beryllium decent to keep the pressure in the scheme from rising, to heat the body of water enough for the thermostat to kick in?

    The sensors:
    Could you tell Pine Tree State what these are for?

    Good to really find something to start knock off the list.

    Attached Files:

  6. The silver pipes look like gas pipes for the aircon,
    Rocker cover may respond to tightening but a new gasket will probably be needed.
    A leak will stop the imperativeness rising which bequeath, if bad enough, lead to terminated heating. Pressure raises the boiling point of the coolant, lack of pressure will not stop the coolant acquiring hot but may lead to it boiling. Information technology will not affect the operation of the thermostat.

2007 Range Rover 4.4 Sport Viscous Fan Overheating

Source: https://www.landyzone.co.uk/land-rover/range-rover-vogue-l322-overheating-problem.344286/

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