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Crankshaft Sensors

Where is the crank sensor located on a 1989 Cutlass Supreme 3.1L?

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2011-10-20 20:08:06
2011-10-20 20:08:06

I just replaced the crankshaft position locator (crank sensor) on my 89 Cutlass Supreme SL. Although I don't know if this will help since mine was a 2.8 L V6 (Eng Code W), but mine was located between the oil pan and transmission pan on the backside of the engine, just above the oil pan. In other words, its between the engine and the firewall on the bottom side.

You have to crawl under the car..... BE SURE TO USE JACK STANDS AND DONT TRUST JUST A JACK. It required a 5/16 closed end wrench. Use the closed end wrench to avoid stripping the bolt head. Its very tight in there. I dropped that wrench on my face at least 20 times. Once you get the one bolt unbolted, GENTLY pry it out with a very small screwdriver. Be super careful not to break it off while prying it out.

I was told if it breaks off, there is nothing you can do except knock it through and remove the oil pan to retrieve it. And you cant remove the oilpan without pulling the engine. Once I had it unbolted, it would turn, with a rag, but wouldn't pop out. It took quite a bit to get it out.

I think (so far) this has solved my problem with the car dieing and not starting for 2 hours. I also replaced the ignition module, which was also a pain but it was located on the front side of the engine.

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