dodgethis Posted August 7, 2009 Report Share Posted August 7, 2009 I know a while back I had started a thread about possibly the tcc solenoid going out on the '98 Lumina. When I was driving around I wonder if the reason its acting up (It bucks, studders when going above 40mph) that the transmission is getting too hot. I noticed while I was driving that when I am slowly pushing on the pedal that when it starts to go above 40mph that the rpms will be at 1500 Rpms and then drop down to 1000 Rpms and it will start studdering bucking, the car shakes while it does this. The only way for it get out of this is pushing the pedal harder for it to increase Rpms to about 2,500 Rpms and it goes away. I can get it to a science to get it to do it again, and its annoying as hell to try to pass someone when the tranny acts like its unsure to either disengage the TCC or go into gear. I have checked the fluid and it looks fine, no burning smell or anything. Seriously I am about to my wits end trying to come of thoughts to remedy this. Anyone having issues like this with there 4t60e transmission? Quote Link to comment Share on other sites More sharing options...
xtremerevolution Posted August 7, 2009 Report Share Posted August 7, 2009 Do you have a transmission cooler installed? I know my transmission became much more decisive once I installed mine. Quote Link to comment Share on other sites More sharing options...
dodgethis Posted August 7, 2009 Author Report Share Posted August 7, 2009 Do you have a transmission cooler installed? I know my transmission became much more decisive once I installed mine. Honestly, no It doesnt. It is pretty much stock. It thought only w-bodys that came with 3800 with the 4t65e tranny usually had one. Was it hard to throw it together Xtreme? Quote Link to comment Share on other sites More sharing options...
xtremerevolution Posted August 7, 2009 Report Share Posted August 7, 2009 Do you have a transmission cooler installed? I know my transmission became much more decisive once I installed mine. Honestly, no It doesnt. It is pretty much stock. It thought only w-bodys that came with 3800 with the 4t65e tranny usually had one. Was it hard to throw it together Xtreme? $50 and 2-3 hours if you're an amateur. Here's my thread on it: http://www.w-body.com/forum/index.php?topic=62889.15 Quote Link to comment Share on other sites More sharing options...
dodgethis Posted August 8, 2009 Author Report Share Posted August 8, 2009 Has anyone disconnected the TCC and checked if it fixed the issue? Where is that thing anyway? I know its on the tranny but can i crawl up under it and disconnect it or something? Quote Link to comment Share on other sites More sharing options...
Crazy K Posted August 8, 2009 Report Share Posted August 8, 2009 Has anyone disconnected the TCC and checked if it fixed the issue? Where is that thing anyway? I know its on the tranny but can i crawl up under it and disconnect it or something? i would not do that. it would probably leave your car in limp mode. a tranny cooler sounds like a stellar idea for you. HOWEVER.... I have had odd underpowered bucking, but it was ultimately found to be the fault of a weak fuel pump. So I ask, have you ever done a tune-up to your car? do you know if everything is in tip-top shape? Quote Link to comment Share on other sites More sharing options...
dodgethis Posted August 8, 2009 Author Report Share Posted August 8, 2009 would not do that. it would probably leave your car in limp mode. a tranny cooler sounds like a stellar idea for you. HOWEVER.... I have had odd underpowered bucking, but it was ultimately found to be the fault of a weak fuel pump. So I ask, have you ever done a tune-up to your car? do you know if everything is in tip-top shape? Crazy, yea I had a tune that I did on it when it had 54,000. I did new plugs, fuel filter, air filter. I haven't had any issues with it after the tune up and it now has 79,800 miles on it. I have to admit that the car always did the bucking thing (that I thought was Tranny) when it had 54,000. I mean the car I had before it was the Custlass ciera, it was blue but looked just like the one in your sig. It had the 3100 with the 4t60e tranny and it never did that bucking problem. I will be doing another tune up on it when she hits 80,000 or so miles, (New Fuel filter, Plugs, wires, possibly pcv valve) Quote Link to comment Share on other sites More sharing options...
sloshman Posted August 14, 2009 Report Share Posted August 14, 2009 Hmm I appear to be having a similar issue. (trying to cruise around 45 with 1500 or so rpm) It's almost like it doesn't like small throttle inputs, kinda feels like a little tug when it does it. I'll try to make it do it again, but I did change the three front plugs since then (I'm not sure when I'll get the back three done due to novice status and lack of money ) so it might have helped. Quote Link to comment Share on other sites More sharing options...
DavidHowell3633 Posted August 18, 2009 Report Share Posted August 18, 2009 Mine was bucking when going up a slight grade around 50 mph and I would force a downshift so it wouldn't hurt anything. For my fix: it was too much corrosion on the sparkplug wires at the plugs. I happened to have another set and voila' no more bucking. I also poured in some injector cleaner since even the BP gas around here sux, but you should have seen the snow flakes that came out of the sparkplug boots. Quote Link to comment Share on other sites More sharing options...
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