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10-07-2014
Hello to all, my 98 gtp randomly stopped using third gear. It uses all other gears just fine, conveter still locks in overdrive. Any suggestions? I looked at a solenoid flow chart and i dont think its a solenoid because i would be missing another gear other than third.
10-07-2014
ive literally had the same problem....new tranny time. or swap a used one in like i did.
10-07-2014
3rd huh... Thats new.
10-07-2014
mine started out as a rpm surge of like 200 rpm's light on the gas in 3 rd gear, then one day, it was just gone.
1 st to 2 nd shifted like a champ still, and if you got it to 45 mph od would hold.
10-07-2014
I guess better than 4th going.. ok drivability and still have highway mpgs. lol
10-07-2014
Yea never heard anything about just third. And ive been told i cant have a stock trans, it has zzp stg4 heads xp cam rockers etc and a 3.1 pulley... so cant really just swap a used one lol
10-07-2014
Lol yea but it kinda sucks, 3rd pulled pretty good! And i need 3rd to finish any races lol
10-07-2014
http://www.grandprixforums.net/threads/54738-chugging my old thread.
yeah you can till drive on the highway, but your not passing any one, give it a bit of gas and its back into second at 65 mph, not fun lol
i drove it 3 hours to bills. literally up hill the whole way lol
10-07-2014
Mine literally had no issues, it just stopped using it, no slip no hard shifts no nothing, just started it up, drove off and it had no third
10-07-2014
This one will run 2nd to almost 100mph with the performance shift on, but that quit the same time third went out... i jumper wired the button and that did nothing
10-07-2014
mine only had the chugging for a week or so. if you just drive it normal, you'd have never noticed it. im a bit anal and feel every little thing the car does. a week later 3 rd was just gone.
10-07-2014
Well im pretty sure i would have noticed it acting up, its a DD car whens its not crappy out. I just think its wierd and random that its just third.
10-07-2014
And with the performance shift going out the same time i didnt know if it could be all electrical related
10-07-2014
Maybe, do you have any stored codes? Most trans stuff doesn't kick on a light btw.
3rd can be clutches or a bad sprag. If you want to test that 3rd is bad.. unplug the connector at the trans and try to drive it. That should default you to only third gear.
10-07-2014
No stored or pending codes. I hate transmissions lol one thing i never got in to.. Where is the plug located? I havent looked too much it literally just started on saturday. Is it the main one on top?
10-07-2014
the round ish looking one atop the d/s of the tranny, pinch its wide side and pull it off. or pull the fuse in the fuse box, same result.
10-07-2014
Alright i unplugged it, it defaulted third and it drives in third!! Now what?? Lol
10-07-2014
Good new and bad news. Good news is likely nothing physically wrong with 3rd... Bad news, something electrical is unhappy with the trans. Have fun xD
10-07-2014
new tranny time.
i didnt want to hear it either. its done, put a fork in it.
10-07-2014
Its gotta be something electrical! I just dont know what, if third works when you default it, the trans isnt bad. Everything else works fine, so somewhere electrical is messed up.
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