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I had similar problems last week and was glad I got my repairs covered under my extended warranty. They are if you buy them aftermarket. http://www.simpleautoquotes.com/Auto-Warranty.html

It is good you were paying attention and caught the loss of oil pressure. Because you shut off the motor you probably prevented massive bearing damage and saved yourself a lot of money. Lack of oil and oil pressure will quickly destroy main bearings that support the crankshaft. I know this from experience; my 1969 Firebird's oil pump retaining plate literally fell off into the sump. In the time span of a leisurely 5 minute drive I destroyed the bearings. I believe you are correct in your assumption in the oil pump failing.

once you've been employing popular dino depending oils in this engine, end NOW!!! interior your oil puimp is an oil rigidity alleviation valve. it really is pastime is to modify oil rigidity in accordance with engine temperature. at the same time as the automobile is chilly, or in wintry climate, the engine demands extra oil rigidity till oil is warmth. Then, the rigidity drops. you've gotten a nasty sensor, yet you should de-sludge the engine with butyl cellosolve, and SWEAR OFF quicky lube drum oils. there's a superior probability that this valve is loaded with sludge and can't do it really is pastime anymore. a superior engine flush could restoration it really is ideal use. at the same time as the engine is clean, use Mobil One, ELF or Amzoil. Chnage it once each and every year. those man made oils received't make sludge, and could clean each and every of the engines expensive internals at the same time as you force. ignore "V" oil and "QS" and understand!!! you are able to advance your engines existence through heeding my suggestion. quite!!!

change the oil filter :P

properley about £25

thats if u fix it yourself

i would take it garge and get it diagnosed

COULD BE PUMP , GAUGE OR SENDING UNIT. TEST IT WITH A MECHANICAL GAUGE. THEN YOU CAN FIGURE COST