Shifts A Little Hard Going From 1st To Second, Need Help Please

koz85037 · June 3, 2011

Hi guys I have a 2004 Chevy silverado with a 4.8liter and 80,000 miles. She tends to shift a little hard from 1st gear to second gear. Shes been doing this for about a year but I just did a tranny flush 3 days ago and I thought that it would help, but she still does it. She shifts at about 1000 to 1500 rpm which isnt bad and sometimes it feels like she shifts normal. At this point it isnt to bad but I dont want it to get worse, dpes this sound like something with the tranny or maybe something with the drive shaft? I dont get any check engine lights. Any help would be appreciated thanks.

mhenshaw · June 3, 2011

Mine did this stock. Seems the computer gets trick so it tries to do a fast shift. Once I got a corvette servo it stopped. Also a tune can get rid of it.

koz85037 · June 3, 2011

Mine did this stock. Seems the computer gets trick so it tries to do a fast shift. Once I got a corvette servo it stopped. Also a tune can get rid of it.

Well thats a relief, I am ready for a tune up anyway thanks for the advice

jro909 · June 4, 2011

no no a tune as in a performance swap of your computer's programming.....btw my 04 does this too sometimes

dblj1500 · June 4, 2011

My 07 does this and I've told the dealer twice now and both times they said its normal.

jsoden · June 4, 2011

My Sierra was doing that, and it stopped when I got my new tires. I learned from the tire place that they re-programmed my computer to accept the larger tires. This improved my shifting greatly! Find someone with a tech 2 scan tool and have them check your programming. It might have just "hiccuped" and not be where it should.