1994 Z28 Modded LT1 Shifting Problems
#1
1994 Z28 Modded LT1 Shifting Problems
Hello everyone. I just purchased a 1994 Z28 Automatic trans car. It has some bolt on mods, frame rails, etc. Not sure about internals. My problem is this:
The car shifts from 1st to 2nd gear really quickly. It also won't kickdown when stomped to the floor (ie: from 4th to 3rd, 3rd to 2nd, or 2nd to 1st). I can however manually drop the gears just fine.
Does anyone have any idea what causes this? I assume this is all electronically controlled and that I can't just adjust a kickdown linkage like I used to on my 81 z28 .
Your help is greatly appreciated!
The car shifts from 1st to 2nd gear really quickly. It also won't kickdown when stomped to the floor (ie: from 4th to 3rd, 3rd to 2nd, or 2nd to 1st). I can however manually drop the gears just fine.
Does anyone have any idea what causes this? I assume this is all electronically controlled and that I can't just adjust a kickdown linkage like I used to on my 81 z28 .
Your help is greatly appreciated!
#6
#11
Re: 1994 Z28 Modded LT1 Shifting Problems
Autozone can't scan the OBDI anymore. If this 94 is like mine, the 'ol paperclip trick won't work either. By the way, those OBDI scanners that Autozone sells are just a big plastic box that essentially encases a 'paperclip'. You will have to find someone with the right cable and a laptop with the code programming in it to scan it is my guess.
#12
Re: 1994 Z28 Modded LT1 Shifting Problems
just called autozone here in madison, they only scan on 96 or newer, i also have a 94 Z28 with some shifting issues. they said they have a scanner for 30 dollars. seems kinda cheap to me making me think its not the right scanner i need. i asked for an obd1 and thats the price they gave me. so what do you think??
#13
Re: 1994 Z28 Modded LT1 Shifting Problems
There is a sticky on here for free scan software ... Free app
located in computer diagnostic and tuning . good for 94-95 OBD1
located in computer diagnostic and tuning . good for 94-95 OBD1
Last edited by parkers Z28; 06-19-2013 at 07:50 PM.
#14
Re: 1994 Z28 Modded LT1 Shifting Problems
I have a 1994 z28 camaro.... on first start up the car will shift from 1st 2nd 3nd 4th fine then once i come to a stop in over drive it starts out in 3rd wont shift down unless i manually shift it down and it only goes to 2nd. Then i can shut it off for 2mins then it will shift fine untill i come to another stop then it does it all over again. Cant get the car to read a code nor know to flash the ecm... PLZ HELP IM CLUELESS.
#15
Re: 1994 Z28 Modded LT1 Shifting Problems
I have a 1994 z28 camaro.... on first start up the car will shift from 1st 2nd 3nd 4th fine then once i come to a stop in over drive it starts out in 3rd wont shift down unless i manually shift it down and it only goes to 2nd. Then i can shut it off for 2mins then it will shift fine untill i come to another stop then it does it all over again. Cant get the car to read a code nor know to flash the ecm... PLZ HELP IM CLUELESS.
Frank