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Old 03-06-2012, 04:02 AM   #1
BigDan3131
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Re: Bogging at lower rpms

I would check to see if the torque convertor lockup switch is working properly.
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Old 03-06-2012, 05:42 AM   #2
TheApocalyptican
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Re: Bogging at lower rpms

Quote:
Originally Posted by BigDan3131 View Post
I would check to see if the torque convertor lockup switch is working properly.
Switch in the tranny is less than 6 months old. Had a problem with it, and during the time the switch was bad I had a toggle switch to turn it off completely, let it control on its own, or lock it in place. With it turned off completely, I still had the problem. Could the converter be able to lock up funny even with the switch disengaged?
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Old 03-15-2012, 02:13 PM   #3
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Re: Bogging at lower rpms

So, I've got a new fuel pump now. So fuel pressure is definitely not my issue. However, I was going over my datalog again, and think I may have discovered my problem. It seems that the knock sensor is picking up a lot of knocks at idle during the times where it won't accel nicely. But then when it does accel nicely, the knock sensor picks up at most 1 or 2 knocks in a several minute period. I am going to datalog again today to confirm this. I realize knocks (or what the sensor believes are) are very hard to diagnose. Anyone have any ideas on why I could be getting knocks sometimes, but not others?
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