Question about Vauxhall Astra
2004 MODEL ASTRA HATCHBACK 1.6i 16V SXi 5dr
Posted by Anonymous on
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Posted on Jan 02, 2017
The lambda sensor is located in the exhaust. There are 2, 1 before the catalytic convertor and 1 after. The lambda sensor senses how much oxygen is in the exhaust gases and continually adjusts the fuel/air mixture so that the oxygen level is correct. If the lambda sensor fails and senses the incorrect amount of oxygen it may adjust the fuel/air mixture so that the engine doesnt run properly.
Posted on Apr 20, 2010
For 1999 Vauxhall Astra 1.6 16V timing belt replacement interval is: 60000 km (37500 miles), or 48 months (4 years). Replace also tensioner roller, (the same interval) !
If you don't know precisely if timing belt has been done, then replace it obligatory !!!
Please rate my response. Thanks!
Posted on May 03, 2010
The engine has little or no coolant. The radiator fan temperature sender needs to be in contact with coolant in order to work, and the heater matrix inside the car uses diverted engine coolant as well.
Do not start or run this engine again until you've refilled the coolant system, to avoid airlocks as you do so set the heater inside the car to hot. Unfortunately, once you've refilled the system I strongly suspect that you'll discover the engine has a blown head gasket and it's not a cheap fix: it starts off expensive due the the labour costs and each additional fault caused by the failure just adds a lot more each time. Usually, you must use a proper water/antifreeze mixture, but as it's expensive and very likely to need draining down again for repairs just use water for now but refill later with the correct mixture when repairs are complete. "Antifreeze" isn't just for winter: it prevents corrosion inside the engine all year round and also prevents the engine from overheating as it's more effective than water alone.
Signs of a blown head gasket are plenty of white smoke from the exhaust even when the engine is warmed up and white creamy deposits in the oil and under the oil filling cap which is an emulsion of water and oil known as mayonnaise. You might not get both symptoms, but the easy and foolproof way to check is to get a garage to do a "sniff test" on the coolant. This is a cheap chemical test on the coolant and instantly indicates a failed head gasket.
If the gasket has failed, then it can work out cheaper to transplant a complete engine as the labour charges are far lower, but avoid so-called "cheap" recon engines. Either pay for a proper professional remanufactured engine (definitely not cheap), or fit a known good engine from a scrapped car.
Posted on May 26, 2010
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