Moddoo

iTrader: (4)

I noticed that it doesn't want to lock up until the coolant temp is near 160 or so.
I haven't logged anything in the last few days, but will try to soon.

I checked the tune, and can't find any setting to tell it not to lock when cold.

Anyone know if this is normal, or how to change it in HPT?

BLACKND

iTrader: (5)

I know the outside temp is much cooler where you are than here, but I have noticed that mine seems to do this in the cooler weather after the truck has been sitting or gotten cold too. My Crew Cab did it too.

stall speed

iTrader: (1)

perfectly normal

quicksilverado

iTrader: (8)

It is programed in the pcm not to lock up until the engine reaches normal operating temp. This allows the engine to rev higher and get the temps up so it will run more efficiently.

whoopassracer

iTrader: (1)

all right so this is normal then cuz my truck does the same thing only in cold weather

KevinF56

iTrader: (9)

yeah its normal. someone asked this very question about a month ago and i think someone responded by saying that the tranny temp needs to get to like 128 degrees or something before the pcm allows it to lock up.

ss64impala

my truck does the same thing. it was very noticable last night when the temp was about 8 degrees

Derek @ EDO

iTrader: (73)

damn, i thought it was my Fuddle lol,mine does this too!
Glad to hear this!

ap2002

iTrader: (8)

damn I was thinking the same thing!!! I've been wanting to ask about this for the past 2days...

thanks for the relief!!

Moddoo

iTrader: (4)

Thanks for the info guys

Mileage is until it locks up.

I'll have to block off the radiator/tranny cooler some how.

My house is less than a mile from the interstate, and it takes a while to warm up at 80 mph.