Gentle surging at cruising speeds - Saab 900 Bulletin Board - Saabnet.com
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Gentle surging at cruising speeds
Posted by Harold [Email] (more from Harold) on Sat, 16 Sep 2006 19:17:02
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I have a 91 900 NA with about 190k miles. Did the head gasket about 9 months ago due to a burned exhaust valve. Did the 180k service at the same time and also replaced the vacuum hoses etc. Car has been running fine since but suddenly I'm getting some gentle surging at highway speeds when I'm barely pushing the accelerator. Car is fine when I accelerate harder. I have had a problem with the Hall sensor before and replaced it (that was a lot more like the engine was cutting out at any speed). Also, the idle when cold is not as stable as it used to be. I have had this car for over 11 years now and the idle after starting has always been rock solid. Checked the hoses and they seem OK. Is my AMM telling me something? No CEL to date. Any suggestions pointing me in the right direction are appreciated.
Thanks, Harold
posted by 68.124.5...
Posts in this Thread:
- Gentle surging at cruising speeds, Harold, Sat, 16 Sep 2006 19:17:02 <-- Viewing This Message
- Also check for sluggish O2 sensor n/m, LM, Tue, 19 Sep 2006 17:45:12
- I will try to find another AMM on eBay to check, Harold, Sun, 17 Sep 2006 07:50:18
- Re: Gentle surging at cruising speeds, oldsaab, Sun, 17 Sep 2006 00:09:12
- Re: Gentle surging at cruising speeds, swede-murphy , Sat, 16 Sep 2006 19:29:55
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