1994 Pontiac Grand Am SE 4Cyl When very hard on the - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 03-24-2013, 11:05 AM   #11
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I couldn't say for sure.
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Old 03-24-2013, 11:11 AM   #12
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I think I will swap the fluid for the new stuff we got now and throw a filter on it and see unless someone else comes up with something
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Old 03-24-2013, 12:49 PM   #13
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Anyone with any idea?
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Old 03-24-2013, 01:41 PM   #14
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to me it sounds more like a problem with however it controls wot shifts, if its an electronic trans then i would suspect the map sensor. just because the trans is shifting when told to it seems. there could be something wrong with the pcm too or tps. it would help if you could hook up the scanner and see if things are in spec at wot
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Old 03-24-2013, 02:35 PM   #15
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It is a a cable driven trans remember tech ones do not give very much information but I will see what I can get out of 1 tomorrow
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Old 03-24-2013, 03:30 PM   #16
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The transmission in that 94 should be a 4T60-E. Which means, its electronic, which means, the shifting is done via the PCM, but can also be "manually" shifted via the cable. Unless your talking about the old style carb'd kick down cable.
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Old 03-24-2013, 03:43 PM   #17
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Quote:
Originally Posted by Mike1995 View Post
Only thing I can think of right now would be to test the TPS sensor.
I agree. This sounds like a throttle position sensor gone bad. I accidentally created this issue once by installing a new TPS backwards -- and sure enough, it revved almost to the redline, and then shifted when I let up on the throttle.

Since you don't have OBD-II, you can't just plug in a scan tool to read the TPS voltage. If you have a multimeter, try Dan'* TPS test.
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Old 03-24-2013, 04:11 PM   #18
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Yes my transmission has the kickdown cable mine actually bounces off the rev limiter instead of shifting
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Old 03-24-2013, 04:13 PM   #19
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Any chance you can shoot a picture of this kickdown cable?
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Old 03-24-2013, 04:24 PM   #20
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Not today. I may be able to from work tomorrow. To be honest didn't actually look on car just going off what my parts department told me based off my vin
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