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Old 02-11-2009, 07:23 PM
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4l60e throttle position sensor question

heres the story im rebuilding my 99 gmc 350 changing to carb motor i was told i would have to manual shift the automatic transmission that would be fine with me not everyday driver but in researching past post on here i dont know if thats true i found a site someone posted on here http://www.transmissioncenter.net/4l80e.htm i called them today they said that i need something to replace the throttle position solenoid but didnt tell me what i needed .i ask did they sell anything to make it work he said i didnt need to buy anything if i was not taking out the computer just changing to carb i guess i sounded real stupid to him but can someone here help me thanks

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Old 02-11-2009, 08:03 PM
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it may of been sensor or solenoid he said not sure
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Old 02-11-2009, 08:42 PM
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Please correct the spelling of solenoid in the title of your post, it makes searches a little easier.

Thanks
Vince
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Old 02-11-2009, 09:14 PM
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The PCM on that truck will look for a TPS input signal to help determine the shift points and main line pressure of the 4L60E.

If there is no signal or a TPS signal way out of parameters .. the PCM will set a trouble code. That would put the main line pressure to maximum.

The 4l60e will not respond to manual shifting like the old non electronic controlled transmissions...

ALSO; I edited the title spelling of solenoid to sensor
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Old 02-12-2009, 06:03 PM
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ok maybe it will be better to change transmission reading other post on this site i read about th2004r it sounds better to me than 700r but can you tell me if it will fit in what im doing if so what wires or parts on my 99 gmc do i need to use with it or what do i need to buy by fit i mean any mods to drive shaft crossmember or any thing like that i dont want to be bother sum but need a lil help please thank you
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Old 02-12-2009, 06:31 PM
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Quote:
Originally Posted by catfishwane
ok maybe it will be better to change transmission reading other post on this site i read about th2004r it sounds better to me than 700r but can you tell me if it will fit in what im doing if so what wires or parts on my 99 gmc do i need to use with it or what do i need to buy by fit i mean any mods to drive shaft crossmember or any thing like that i dont want to be bother sum but need a lil help please thank you
With the TH2004R you'll need a longer driveshaft. Driveshaft & crossmember from a truck that came with a TH400 will work. Change the yoke on the driveshaft to 27 spline. Setup the TV cable brackets & Carb geometry corrector. Need a TCC lockup kit also. TH700R4 is a little less work but I like the TH2004R better also.
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Old 02-12-2009, 06:39 PM
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ok just asking if i make them mods then i could go with th400 or th350 for about the same mods if this is so then ineed to see witch one of the 4 is best for me and i would be glad for any input i will also look at past post there is a lot of knowledgeable people here and you all have my thanks
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Old 02-12-2009, 08:00 PM
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Any of the 4 trans will work. You just need to know what you're going to use the truck for. Street cruising, Off road only, Heavy towing etc..
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Old 02-16-2009, 07:14 PM
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i got a guy i know to build me a 700r4 he said he would work out all prob with it he said he was going to drill out some holes to make fluid flow better change out a small shaft that has something to do with shifting it and put a shift kit in it does that sound right he said parts are 200.00 and thats all i have to pay be ready friday
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Old 03-09-2009, 12:19 PM
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I'm running into this same problem I have a 94 Chevy 1500 with a 4L60e that I switched from TBI to carburator. I still have the stock computer and wiring harness along with all sensors still attached except the TPS sensor. TCI makes a TPS sensor that is cable controlled http://www.compperformancegroupstore...Category_Code= . Everyone I've talked to tells me this should work. I'll try to keep you posted.
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