Drivability Help.... - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 08-24-2003, 08:53 PM   #11
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A vacume leak could induse problems.... could they induse the problems as stated? I think I did hear a hiss last time under the hood.... good call men Ill check it out and get back.
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Old 08-24-2003, 08:57 PM   #12
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The code 65 will not turn on the SES light. The vent and vacuum solenoid circuits have different codes. The 65 means that the PCM is reading bad values from the servo position sensor. Likely electrical, because the error happens when the sensor terminals are open, grounded, or shorted to voltage.

Thr problem sounds tune-up related to me. Could be the oxygen sensor, but problems like this are hard to diagnose without being by the car.
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Old 08-24-2003, 11:57 PM   #13
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True... I have just done a full tune up except the 02..... should I just try it?
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Old 08-25-2003, 12:23 AM   #14
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I don't like to recommend that parts be changed out blindly, because the best way to check them is by using a scan tool.

Your heated oxygen sensor may be a little pricey, changing it out would be at your own risk.
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Old 08-25-2003, 12:14 PM   #15
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So i should go get my car scanned then eh? Your right I wouldnt want to pay that much if I didnt have to for the o2
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Old 08-25-2003, 03:01 PM   #16
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Depends on the cost of the sensor. If it has never been changed before, you might try it if it is under $40. A diagnostic scan will cost you $75 or more.

So I would price the sensor and then change it if it is relatively inexpensive. Some people recommend that it be changed periodically. Don't know if it will fix your problem.
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Old 08-25-2003, 03:24 PM   #17
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True.... it has been a while since it has been changed since the last time its been changed was 75k.... So... since im at 141k I think Ill give it a shot... Ill see what I can price it at...
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