I have a 2003 monte carlo from new..
My problem is shifting from 1st to 2nd.
When I pull out the RPM goes to 3000 or 3500 before it shifts to 2nd gear.
Sometime it shifts normal.
It has 170000 miles on it and the fluid and filter has never been changed.

 

Well well well, a no fluid / filter change situation. LOL, I have been there myself. What kind of money you want to throw at it. Enough for a liquid band aid?

I'm assuming the fluid level is topped off. And if that is the case what I have done in the past has got me down the road for another year. This was with my older 96 GMC truck, but should work here. At least its a $50 effort that could work and could not. But mine always did, I just had to repeat the process a couple more times when it started slipping again.

Walmart / Harbor Freight sell a cheesy siphon pump. Get one of them. At Walmart buy a quart of the Lucas Stop-Slip or 2. About $13 or so. I have the car running and tranny warm. I have a 5 gallon bucket resting on a chair, bench etc. next to where I'm standing. Inside the 5 gallon bucket I have a 1 gallon milk jug etc. that catches the fluid being pumped out. The 5 gallon bucket just stops the 1 gallon from falling over when the little hose jumps around while pumping. The small neck keeps the thin hose contained. You can use a waste can etc. With the siphon pump suck out all the tranny fluid you can. Sometimes it seems like the siphon pump is not working so well. Just persevere, stay with it, keep pumping, little by little till you finally know you are not getting any more. Sometimes I have to pull the suction side hose back out of the fill tube a little, it gurgles, push it back down, resume pumping, adjust hose in / out, what ever it takes till the pump gets all it absolutely can. Then I make sure the Lucas is warm as it is like syrup and you have to pour it down the tranny fill stick tube. You need a narrow neck funnel that fits into the small tranny hole. Then pour the Lucas in, car is running the whole time. Check your fluid level and try to replace as much as you removed. This method will make your car run better if it is going to be saved at all. If not, off to the tranny shop... Now to be more creative, I would suck out old fluid, add new fluid, drive around to mix it all up with old fluid. Then do it again, remove mixed, add new, drive around remove mixed, add Lucas and top off with new fluid. This way some of the tranny fluid is of a relatively thicker viscosity. Then that with the Lucas, I bet you can go for a few months like that. I always did and I did it with 2 different Chevy / GMC trucks perhaps a dozen times before the tranny died. Hope this is readable, getting later, thinking fast.

HyperTough Multi-Use Pump Universal, 36200WD - Walmart.com - Walmart.com
Transmission Fix (lucasoil.com)
.walmart.com/ip/Custom-Accessories-Polyethylene-Transmission-Funnel-45558/38471076

 

Why not just change the fluid and filter to see what happens? Doesn't seem like you've got much to lose here, it's already broken and has lived a long life. Worst case you just put the final nail in the coffin. Best case maybe you buy yourself more time with it.

I'm assuming of course that you're wanting some DIY suggestions without going to get it properly diagnosed. A trans shop could plug in and see what the solenoids are doing/ how much slip is occurring to get a better picture of whats really broken here.

 

Thanks bumpin96monte for your time to respond.
I will explore your ideals.
I will keep you up todate what I do and what happens

 

Thanks for replying zippy02.
I will explore your ideals and let you know what happens.