Coolant leak repair is usually straightforward – just be prepared to spend some time with your head under the bonnet, because some leaks can be tricky to locate. The level will rise when the engine is warm because water expands when it's hot, but it'll fall back to the 'cold' level when it cools. Car coolant is contained within a sealed system, so if it's in good condition the coolant level shouldn't change if it's checked when the engine is cold. If you haven't just renewed the coolant, there's a good chance there is a leak, either from the radiator or somewhere else. You might have just changed the coolant and the air locks in the system have now cleared and the coolant needs to be topped up to the correct level. There are a couple of reasons why your car's coolant level might be low, and a leak won't always be to blame. Discover which Haynes Manual is best for you.NEW Fault Finder - Diagnose the problem.It could just be an issue when the engine is cold which then is fine once the engine is up to temp and coolant is circulating much like a pressure relief valve or something. Oddly it drips onto a bracket below which has a sort of trough down the middle of it as if its meant to drip down there, the water pump is new but I don't know when the thermostat was replaced so it might just be a thermostat issue. It does seem to be leaking from behind the bracket - will investigate tomorrow, its just typically in a really tricky place but the good news is that there has always been good coolant levels in the car and there aren't any bubbles in the expansion tank so I think its just a seal that has gone. I have also noticed that the vacuum pump can be easily removed with the 2 bolts and taken off for slightly better access - but would rather keep things as they are as there are also other seals for the vacuum pump. Oddly it doesn't seem to be coming from around there but actually behind the engine lift bracket - not sure if there is a threaded hole in the block that the coolant can pass through but is plugged by the bolt used by the engine lifting point. Thanks for the replies, I have tightened down the thermostat housing slightly - although careful as its plastic and I have another on order. ive seen housings go brittle or detrioate where the seal fits also. Thermostat housing im guessing, the seal will have deterioated. Has anyone had this issue before? Its just typical that its in a really tricky place - as they always are! The water pump is new and done with the cambelt, I have a feeling its a seal or bolt not 100% tight on the gearbox side of the engine, it might be an issue with the seal on the plastic thermostat but wanted to check things before dropping all the coolant etc, I can see the drips coming from behind the bracket though rather than around the thermostat housing. I am leaving the car overnight to see how much has gone but I needed to top it up a bit earlier - it was down to just above min level in the expansion tank. I am going to try and remove the engine lift bracket but due to where the plastic thermostat is its not that easy, have bought a swan neck spanner to get in there - will be trying tomorrow.īasically I can see coolant dripping from behind this bracket, I am not sure if there is a weep hole around there at all and its something I shouldn't need to worry about - will remove the bracket to check. Gearbox side of engine, Below the vacuum pump Under the engine lift bracket. I have noticed that my 1.4 TDCi is dripping a bit of coolant, I have found where its leaking but still need to 100% pinpoint - annoyingly its quite inaccessible.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |