03 4T65E slipping in 1st - Page 7 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 10-07-2010, 12:43 PM   #61
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Not much else to test. I've tested the PCS and had it show good, but it was still bad. SGP358 says always replace the PCS if you have the side pan off. It'* only about $60. The PCS is a know bad part in these transmissions.
Any other solenoids I should be replacing in the event that the side pan has to come off?
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Old 10-07-2010, 12:46 PM   #62
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You have a code for the TCC stuck on. May be worth changing that one as well.

One other thought, have you checked for 12v on pin E?
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Old 10-07-2010, 01:05 PM   #63
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You have a code for the TCC stuck on. May be worth changing that one as well.

One other thought, have you checked for 12v on pin E?
No...what'* the 12V on pin E do? And how do I check that? Using the voltmeter, one wire to ground and one to pin E?
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Old 10-07-2010, 01:07 PM   #64
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Oh by the way, I went for another drive to show my co-worker what my L67 can do, and aside from needing to downshift into 1st in order to be able to drive it, TCC didn't stay locked, 2nd gear was solid as a rock (I know, I took it to 70mph), and upshifting and downshifting felt smooth the way it should.

One of these days I'm going to get really, really pissed and just swap in a manual transmission.
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Old 10-07-2010, 01:08 PM   #65
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Yes, pin e to ground, you should have battery voltage. If not, there'* a fuse blown. If that'* the case the transmission will slip in 1st. You will also get a check engine light.
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Old 10-07-2010, 01:21 PM   #66
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One of these days I'm going to get really, really pissed and just swap in a manual transmission.
you could save yourself the trouble and do it as a "preventative measure"...
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Old 10-07-2010, 02:14 PM   #67
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Tables from an 03 Regal on a 99 MC pcm. Hmmm Not sure here...but in the Bonneville you aren't putting all the 03 settings into anything other than 03 plus because half don't exist. I'd be taking a look.

Never did send that guy John a pm at NEP did ya? Since he did it successfully and you are having issues, it would be a priority if it were me struggling. Struggling sucks, pm'* are easy.
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Old 10-07-2010, 02:25 PM   #68
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Tables from an 03 Regal on a 99 MC pcm. Hmmm Not sure here...but in the Bonneville you aren't putting all the 03 settings into anything other than 03 plus because half don't exist. I'd be taking a look.

Never did send that guy John a pm at NEP did ya? Since he did it successfully and you are having issues, it would be a priority if it were me struggling. Struggling sucks, pm'* are easy.
I had posted in that thread a few times but got no reply, so I sent him a PM today. Hope he has tim to respond.
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Old 10-07-2010, 05:34 PM   #69
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Ok, here'* what I've got.

Quote:
. The Pressure Control Solenoid, PCS is different and will NOT interchange, though it may physically fit in either valve body. The solenoid is designed different and does not function the same as the earlier units. If used it can destroy a good trans because pressures will not be correct as the valve body is calibrated different to be used with the new style solenoid as well as different pcm calibrations were made.
http://www.tripleedgeperformance.com...bout_using.php
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Old 10-07-2010, 05:48 PM   #70
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i wonder what is meant by "functions differently"...

here'* what alldata says about a 99MC3800 and a 03century3100, repectively.





the only differences in how it operates is the frequency at which the PCM adjusts the current.
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