Hard shift - Late Engage

[SpykeL]

Re: Hard shift - Late Engage

1-2 is the hardest

2-3 is noticeable but not as violent

3-4 is just a calm shift

by pulling the PCM i mean the PCM Fuse in the fuse box sorry for not clearing that up. a co-worker said to unplug the battery and pull the PCM fuse and wait a few hours to see if it resets any truth to this?

[bigbrian442]

Re: Hard shift - Late Engage

Yes, that should clear the codes. I'm thinking you may have a force motor going/gone bad. It your PCM has no codes in it.

[SpykeL]

Re: Hard shift - Late Engage

Here is an update.

So when i step on the accelerator for a good amount of time i get the "Service engine soon" light and when scanned it reads low voltage on the O2 sensors but i bought brand new stock ac delco sensors so i dont know why that code keeps popping up.

But this is the weird part my car drives BETTER when the code is on. It shifts perfect when that code shows up. When i clear the code is hear a click in the engine and after that, that is when the shifting problem starts to show up again but when the code shows up it shifts perfect

what is up??

[Blizzard242]

Re: Hard shift - Late Engage

You should probably check to see if those wires are connected or burnt.

[bbplayer133]

Re: Hard shift - Late Engage

you may be throwing code P1870.

Look into it, its a common problem, the best solution is to get the TCC body fixed, cant remember it exactly.

[ssms5411]

Re: Hard shift - Late Engage

Last time I checked the car doesn't run with the PCM unplugged.

I would hope not, that just made my day , thanks