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trans slips only the first drive per day

shawnheck03gtp

shawnheck03gtp

New member
k i have a 2003 gtp and it recently started a weird problem. the first time you drive it for the day it slips in every gear and every shift then if you drive and baby it you will be driving along and what do you know it suddenly works fine. so i have no clue im not a tranny man:confused:. oh yea just serviced it and the tranny has maybe 20,000 mi. on it
 


shawnheck03gtp said:
k i have a 2003 gtp and it recently started a weird problem. the first time you drive it for the day it slips in every gear and every shift then if you drive and baby it you will be driving along and what do you know it suddenly works fine. so i have no clue im not a tranny man:confused:. oh yea just serviced it and the tranny has maybe 20,000 mi. on it
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I just did the same and no one can help me either....mine is doing the same exact thing...I just got mine serviced yesterday and it has 111,398 miles on it. The trans shop said they didnt retrieve any codes....so i'm in the same boat.....the shop I took mine to said they would do a rebuild for 1300.00....
 
I have the same issue. Started happening the day after the first time I used drag radials at the track. I believe it could be two things. One.. The inner surface of the input clutch piston is worn and when the trans heats up it seals and shifts fine. And two... It could be a gremlin in the valvebody with some wear on one of the valves. Either way you're gonna have to tear into the trans, and if you don't do it yourself, it's gonna be costly.
 
OH4CompG said:
I have the same issue. Started happening the day after the first time I used drag radials at the track. I believe it could be two things. One.. The inner surface of the input clutch piston is worn and when the trans heats up it seals and shifts fine. And two... It could be a gremlin in the valvebody with some wear on one of the valves. Either way you're gonna have to tear into the trans, and if you don't do it yourself, it's gonna be costly.
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total opposite with my input piston.... on long trips it would really start acting up bad... around town it was fine. to the OP... have u had it scanned yet?
 
gtpinsc said:
total opposite with my input piston.... on long trips it would really start acting up bad... around town it was fine. to the OP... have u had it scanned yet?
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I did...well the shop hooked it up to a scanner and drove it around for 30 minutes and the tech felt the firm shifts but the reader didn't find any codes....the most puzzling parts is I could go into a store for a few minutes...come out drive and nothing....then make another stop somewhere else and come out and its shifting hard....who knows!!!
 
see mine shifts fine after something flips the swich i can feel when it starts to work fine it feels like your sliping a clutch and let it slam back at you and bang grabs fine. and it was doing it before the service i thought thats what it was:th_liar:. but the weekend of the 4th i took it on a 800mi round trip and not a single problem. is there a single valve that controls fluid pressure. i will scan it and watch the pressures when i get back to home from work damn out of town jobs. it takes me months to figure and fix things cus im only home 8 days a month.:th_shakinghead2:
 


Hi I am having the same problem with my 02 GP GT on the first start of the day it slipsbut when the temp gauge is up at about 160 or so its shifts fine no problems at all and the fluid is fine
 
Sounds a bit like EPC soleniods guys. If the problem is intermittent..that's usually something electrical etc aka EPC.
 
i still have the same problem. it started with the long shiftiing from 3-4 gears, i had two shift soleniods replaced and then the others went out. so i recommend replacing all soleniods at once. the shift solenoids can be bought at autozone for 15 bucks each and the others can be ordered from GM for a total of 40-60 bucks depending on which dealership you go to. u can either do it yourself (which is a royal pain in the ass because its a FWD, but it depends on the model) or go to a hood mechanic and have him put them in. you also need to purchase a new gasket and filter and fluid. in all, it cost me about 350. 100 of it being parts. just shop around, tranny probelms arent all that expensive if you get the parts yourself and shop around for a hood mechanic. peace
 


If it first slips the very first part of the day or after the car has been sitting for a while, it may be even something as simple as the check ball in the transmission line fitting. Some years have them built into the fitting that screws into the case and other years have them internally in the transmission. It basically keeps the fluid from draining when the car is off so that when you first start it, you don't have to wait for it to build pressure back up. When you got it serviced, there could have been debris that got caught there not allowing it to close, or they left it out, hard to tell how exactly they do it.
 
mine doesnt shift into second gear for the first drive of the day or if the car has been sitting for atleast two or three hours. i have to be going at 15 mph for about 5 min then second gear kicks in. will shift fine after that as long as i dont floor the gas pedal in first gear. it doesnt seem like its getting all of first gear either cause it slips at around 15 to 20 mph. water got into the tranny but i dont know what it would affect. anybody have any clue what it could be?
 
Mine just threw the p1811 code,....so now what? SHould I just look at getting the whole trans replaced? or just get the EPC solenoid replaced?
 
i used to get that code but it just went away one day. you think it could be my epc. is there any way to test the resistance of the solenoid through the top connector under the throttle body. i've seen there is certain pins that you connect but i dont know which ones it is. Can anybody help me out? THANKS
 


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