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Question Asked: Can worsening crankshaft sensor affect air mass sensor?
January 25, 2013, 10:33 AM
For 6 months has occasionally threatened to stall, with onset of colder weather would not start readily, holding accelerator halfway down seemed to help. Check engine light came on once 4 months ago and logged code that air mass sensor failed. Replaced that & checked air filter. With onset of cold weather start problem ensued with regularity. Cold weather start problem first occurred at about 30K, dealership fixed under warranty. Have since taken it to independent import repair shop with excellent service history of 30+ years in NE Wisconsin. Bought extended 2-year warranty with car so forced to go to MB dealer with limited diagnostic skills. Was told that replacing regular octane with premium solved the problem......after they had it for 3 weeks. After reading on RepairPal about crankshaft sensor failure on C240s, asked if they had checked that and was pretty much dismissed.
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Comment: Why There Is a Shortage of Skilled Automotive Technicians - Part 1
January 25, 2013, 10:48 AM
Agree completely! My cars have been serviced at an independent dealer for 30 years (specializing in imports). Recently have had a problem which the extended warranty would not cover unless it went to the dealership. After 3 weeks the best they can tell me is i've been running the wrong octane fuel. Just because they put a lot of money into freshly baked cookies, fresh fruit & a nice selection of beverages does not make their service techs any more knowledgeable.....just makes the customer more complacent. I'll take the shop where the owner is willing to show me the failed part and explain what happened. Car manufacturers and dealers would rather not see these independents in business because it makes them look bad.