My 98 riviera is not shifting right. The rpm is not going into the red. I put a transmission filter kit on it and its still not shifting right. Can anyone help me solve this problem?

Transmission not shifting into overdrive right.

A shift kit is always a good idea when hauling a trailer. It is a kit that is installed in the transmission made up of gaskets seals and other small parts. Fairly easy to install. This makes the car shift faster, without lag in between gears. Normally if you had a tachometer your car may drop 1200 RPM'S while shifting, but with a shift kit, it would only drop 600 or so RPM"S Easier on fuel, and easier on transmission. Good investment in my opinion. Happy travels and cheers from Nova Scotia

Replace transmission filter and fluid. DO NOT OVER TIGHTEN THE FILTER. 11 IN LBS MAX. FAILURE TO DO THIS WILL RESULT IN TRANSMISSION NOT SHIFTING IN THE VALUE BODY.

there is usually 2 component to this, all related to the transmission. First , loosen the kick down cable,If you cant figure how to loosen it, just disconnect it from the throttle body. then test drive to see a difference. IF still shifts very hard, you may have a "shift kit" installed. this was done when the tranny was rebuilt.. I personally install extremly hard shift kits in my vehicles, my 1992 gmc K 1500 X-cab will shift so hard it "BARKS" the tire, and slides the back end of the truck over 1 foot, it feels like the truck is going to break. I LOVE IT...

Actually what you are driving has a very strong transmission, what i would suggest is getting the fluid and filter REPLACED not FLUSHED. This should solve your problem depending on miles.

If i remember right you have to remove the oil pan,then you have the filter inside,remove it slovly or you will have oil everywere,put a bucket or something under.

you will most probably need a beefed up tranny to take the power of the engine, I have just installed a 350 supercharged chevy motor in my sons car with a Turbo 350 transmission and a shift kit which I have been told by an auto trans mechanic may not take the power of that engine.
It is costing him $1500 australian to have it reconditioned so I hope it will survive the rides

Hello;
I need to know the codes so I can properly diagnois your problem. Here are a few tips though. Your electronics inside the transmission may be going out. You should start by changing the fluid and the filter. Let me know if there is a lot of metal or fiber shavings in the pan. Put new fluid in and clear your codes. See how it shifts and then let me know what is going on with it. Hope this helps.
Thanks;
Rich
RPM Northwest

you need to replace clutch pack for that gear can be ordered seperately from parts store or dealer if you want to save money call peach street auto recycling at 1800-365-2341 for a warrantied used one! also might be time for change trans filter and fluid filter could be slightly clogged but I lean towards clutch pack I replace these alot on Hondas

Try replacing your fluid filter in your transmission first. If that does not work, your tranny could have the gears wearing out. To solve the shifting problem, have a shift kit put in your transmission.