Power surging when warming up when cold?

[tedbiele]

Anyone else running INTO what feels like power surging when the Magnum R/T is warming up? I noticed that when I first bought it a few weeks back and hoped it would subside. But the problem persists. It only happens when the car is cold. But it is unacceptable in my book.
Anyone run INTO this?

[redinorange]

My RT is garage kept, but the two or three times I,ve left it outside and it was cold, I've had the same thing. I assume it's the computer making adjustments to the differing conditions.

[gamsberry]

Mine does this too. It's not a huge thing but it definately has a non-linear response for a while after a cold start. It is garaged at both at home and at work but it never gets cold here (seattle) anyway. I don't know if it's related or not but I didn't notice this until after I had re-calibrated the throttle to be as responsive as I could get it. I've not had time try other settings. The owners manual does say that the transmission behaves differently when cold to get it up to optimum temp as quickly as possible. So I just assumed that there were a few things going on.

[ronneyf]

Mine does this too. It's not a huge thing but it definately has a non-linear response for a while after a cold start. It is garaged at both at home and at work but it never gets cold here (seattle) anyway. I don't know if it's related or not but I didn't notice this until after I had re-calibrated the throttle to be as responsive as I could get it. I've not had time try other settings. The owners manual does say that the transmission behaves differently when cold to get it up to optimum temp as quickly as possible. So I just assumed that there were a few things going on.

Got the same thing. It definitely feels like a tranny issue, not motor, to me. After about a mile (just getting out of the neighborhood), she's running fine. Although, you can certainly tell a rougher idle when cold, too. I like that feel actually...gives you that big cam lope. :lol:

[tedbiele]

I'm just thinking of HAVING the issue checked out.
The coldest it's been here temp wise is in the 50's since I bought the car.
Seems a little strange to me??
Dunno.
Thanks for the input fellas.

[ronneyf]

I'm just thinking of HAVING the issue checked out.
The coldest it's been here temp wise is in the 50's since I bought the car.
Seems a little strange to me??
Dunno.
Thanks for the input fellas.

By cold, I simply mean recently started...it happens to me when the temp is 70, until the car gets up to temp. Good luck, and let us know if you find out it is anything we need to do something about. I've been through 2 intakes, a chip, exhaust and numerous throttle calibrations, and it has always been there.

[lbstone]

I've had the same issue when the Magnum is cold. It only happens to me when its below Freezing (99% of the time I;ve owned it)!

[Fred]

Does it feel engine related or choppy shifting FROM the trans?

[tedbiele]

It doesnt feel tranny related. My shifts are buttery.
It feels fuel delivery related to me.
I too meant when its cold, not cold outside temp wise.

[ronneyf]

It doesnt feel tranny related. My shifts are buttery.
It feels fuel delivery related to me.
I too meant when its cold, not cold outside temp wise.

Gotcha. Mine definitely feels tranny related, stumbling shift to second. It falls flat on its face then jumps up after about a 1 second delay...kind of like a clutch is engaged too long. Makes me look like a kid with a stick that can't drive for s**t. I try not to get on it too heavy until I get some engine temp up, which comes pretty quickly.

I don't have any other issues though, just the shift to second. Does yours have issues throughout the power band/gears?