Torque Converter Lockup Delay? - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 09-27-2007, 01:32 AM   #11
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OK, I just thought of something else. Is my tranny a 4T60 or 4T60E? (94 Bonneville SE) And I guess the difference is "E"lectronically controlled? And thanks for the help so far. Looks like I may be stuck with the "hunting" lockup. :(
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Old 09-27-2007, 01:48 AM   #12
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You have the E, and if you want to change lockup (due to driving conditions), there is an option.

www.gmtuners.com

For most of us though, changing lockup with typical driving styles wouldn't be good. If it'* truly 'hunting', I'd begin to suspect a misadjusted or overly sensitive TPS first.
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Old 09-27-2007, 02:01 AM   #13
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I was thinking I may have a TPS issue as well. Sometimes she just seems to have a "flat spot" where the power dwindles a bit, but it is not a constant thing. It happens at part throttle, while accelerating, maybe 2/3 throttle or so. Sometimes at different throttle positions as well. I do not have a scan tool, so I can't get the instant info. Not sure how much streaming info is available anyway with "OBD1.5" or whatever. TPS prices are kinda high, I think, compared to others I've done on other cars. Where should I get one? A good one. Cheap.
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Old 09-27-2007, 09:51 AM   #14
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OBD1 had a full gamut of 'streaming' data. 1.5 has as much as OBD2. You can also check your TPS with either an ohmmeter or voltmeter. Analog is preferred over digital so you can watch it full sweep.
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