joe Posted April 18, 2011 Report Posted April 18, 2011 my 1.9 tdi galaxy on 51 plate engine temp gets upto 90 within a mile of drving cold air throo blowers an it trys to chuck the water out of expansion tank is my water pump or thermostat please can any one help many thanks joe !!!! Quote
Mirez Posted April 18, 2011 Report Posted April 18, 2011 my 1.9 tdi galaxy on 51 plate engine temp gets upto 90 within a mile of drving cold air throo blowers an it trys to chuck the water out of expansion tank is my water pump or thermostat please can any one help many thanks joe !!!! Sounds like both, with probable head gasket and secondary water pump failures to boot. Quote
joe Posted April 18, 2011 Author Report Posted April 18, 2011 my 1.9 tdi galaxy on 51 plate engine temp gets upto 90 within a mile of drving cold air throo blowers an it trys to chuck the water out of expansion tank is my water pump or thermostat please can any one help many thanks joe !!!! Sounds like both, with probable head gasket and secondary water pump failures to boot.many thanks mirez i was hoping i would get away with the head gasket, so seems my own fault for pushing the old girl too much :/ Quote
Mirez Posted April 18, 2011 Report Posted April 18, 2011 Yup, sorry to give the bad news but coolant trying to escape the system is nearly always one thing - gas in the water caused by H/G failure. Normally, the TDI's take forever to warm up and even with a primary water pump failure they can still live on (and still take a long time) to reach temp! For it to be heating up so quickly is why I would suspect both primary and secondary water pump failures and ultimately probably the cause of the H/G fail. Quote
joe Posted April 18, 2011 Author Report Posted April 18, 2011 (edited) its also using a lot of fuel if that shines a different light on it. :o....Mirez could you tell me where the secondary pump is situated...feel sumwhat stupid but wasn't even aware it had one.. I've never been able to get enough technical info on this model also can't get a Haynes for it. Edited April 18, 2011 by joe Quote
Mirez Posted April 18, 2011 Report Posted April 18, 2011 its also using a lot of fuel if that shines a different light on it. :(....Mirez could you tell me where the secondary pump is situated...feel sumwhat stupid but wasn't even aware it had one.. I've never been able to get enough technical info on this model also can't get a Haynes for it. Not really, if the head gasket is leaking into the coolent system then you won't be getting full power from that cylinder - hence additional fuel, its probably more that you are having to work it harder then its using the fuel. Secondary water pump sits behind the fuel filter, somewhat hard to see with the bulkhead panel in place but look in and its a silver cylinder about 6inch long mounted horizontally. turn the ignition on - wait 20 seconds then turn it off, it makes a semi-audible whir in the engine bay for about 3 minutes if its working. Plenty of posts on here regarding it, under various names including "Run-on", "Auxially", "Secondary" and "Booster" pump - its main purpose is to prevent hot spots on switch off and pump coolent down to the rear heater but it provides some circulation to the engine when working which is critical if the main pump has failed Quote
joe Posted April 22, 2011 Author Report Posted April 22, 2011 hi mirez i have been really lucky with the car called the aa out to it they did the water gases test for me an pluged the car in turns out it was only the thermostat i changed it yesterday an took the on a run down to stafferd an she went like a dream there an back with no overheating probs at all saved me a few qid many thanks for your time an info :unsure: Quote
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