SalemNews.com, Salem, MA

Business

June 15, 2013

Auto Scanner: Escalade keeps breaking down at 120,000 miles

Q: My daughter bought a 2004 Escalade (120,000 miles on it) nine months ago. She only got a 30-day guarantee with it. Her problems started a few months after she bought it. The first time her car quit on her she was told she needed a new throttle body. Two months later her car quit again and she needed a new transmission. One month after the new transmission her car’s engine light read “reduce engine power” and the car quit again. She had the car towed to where she had the transmission installed. The mechanic there had the car for a week and told her something about 11 points he had to check. After the week, he got it going and said all he could find was she needed a new air filter. (She had the oil changed at the dealership after she bought the car). A week after the air filter was changed, the car quit again and it was towed again to the same mechanic. He had the car another week and told her about the 11 points again. He told her he wasn’t sure what the problem was but thought oil was leaking into the engine and if that was not the problem, she should take it to a dealership for them to figure it out. Please help her. What do you think is wrong?

A: Variable cam timing and mass airflow sensor are just a few of the known problems on the Escalade. Variable cam timing depends on oil being present at the sensor with the proper pressure. The Caddy may be sucking oil out of its six-quart system and lowering the quantity to the point that the cam sensors are being starved and shutting the engine down. Other known problems are with the mass airflow sensor, which is located at the front of the air intake tube. When this problem does happen, if it is indeed the mass airflow sensor, technicians have been able to unplug the mass airflow sensor and the vehicle then runs again. If you stick to one good shop and give them the time they need to do the proper diagnostics, you will be able to get rid of the problem and enjoy the Escalade.

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