ls1propelled

here is the problem...

It drives fine, as long as your not beating on it... when you floors it, it will downshift or if i start of a stop it takes off fine.. but the problem is when its time to shift... sometimes from first to second but mainly its from second to third it just bangs the rev limiter.. and wont shift.. i have to lift and "peddle shift"

Any answers???

Also, the gas milage went to complete ****!! we switched from a 2.73 gear to a 3.73 and I know its a decent change.. but 5-8 mpg when on the highway doesnt sound right, and thats only doin 75 or 80 mile per hour...

anything? anything?

shortdog

iTrader: (1)

Did you recently put a converter in your car?

ls1propelled

no its completely stock

its been to the track once... and sprayed twice...

little more info.. had it ls1edited by a VERY realiable shop.. turned the shift point down and rev limiter up 200 rpm... so it WOULD shift.. and it still did it

mikes04gto

mine is the same with 30k on it.I am trying to figure it out also.good luck.

performabuilt

iTrader: (25)

Providing the gear ratio change has been take in and the PCM updated for it and programing is set properly many times this is caused when the clutch /band clearance (wear)is to high and the transmission is close to needing to be rebuilt or better replaced with a built unit for the shift issues anyway , As for fuel sounds like you arent getting converter lockup , I would have the tuning double checked first and if you find nothing there then its time for a trans and converter

ls1propelled

i had the car reprogramed twice and it was checked.. thanks for the help... only 40,000 on the motor and trans.. nearly nothing! car is mint

ls1propelled

can anyone recommend a shop in the chicagoland area besides FLT??

ls1propelled

anyone?