Question about 2003 Oldsmobile Silhouette
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Posted on Jan 02, 2017
There are 2 fuel lines connecting to the fuel injector rail. The larger line is the pressure line and the smaller line is the return line. The smaller line attaches to the fuel pressure regulator. You will notice that the regulator also has a vacuum line attached to it. If you are planning on changing it your self, let me know. There is a specific way to change it for safety reasons.
Let me know.
Posted on Mar 10, 2009
The oil pressure sensor is between the exhaust manifold and oil filter. You can get to it better from the bottom by removing the oil filter to give you more room and it should take you under 30 min to replace oil filter and all. I guess if you have long thin arms you can get to it from the top too. Good luck and hope this helps.
Posted on Jul 03, 2009
The Aurora is a low pressure oil system. The only solution available at this time is to increase the oil weight. I went o straight 30W to solve the idle alarm issue. Some use 20W oil and that works too.
With 20W you will be at 80 to 90psi cold then drop to 20-30psi hot.
I first replaced the oil pressure gauge and it was worse. I put the original back in and it was better. Then went to 30W and all is fine.
Running it that way for a few years now.
Posted on Apr 03, 2010
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