changed transmission fluid now shifts hard

#Changed transmission fluid now shifts hard install

On the shift kit, make sure you know what you are getting in to. Should I add that to a standard Dex III or Dex VI like Super-Tech, or go with MaxLife and add to that?Īlso thinking about adding a tranny cooler as well.ĤT65-E trans has intermittent hard shift when hot.įound that a TransGo shift kit will help solve problem. I won't be having any power flushing done, and will be doing my own pan drops/fluid exchanges as necessary, but should I run a chemical flush treatment from ARX, BG, Lube-Gard, etc.? I've read that Valvoline MaxLife would be a good choice for fluid, but would a Dex VI be better? If so, what brand? I've also read that Lube-Gard red is a good product as well. I've purchased a Wix filter for when I drop the pan, but my question for you guys relates to fluid and possible additives and/or flushes.

I have no problem doing this myself since I installed a similar one years ago on a truck I owned with a TH-350. Their web site claims to solve the problem by shortening the shift time, and at least one reputable transmission shop recommends trying it.

#Changed transmission fluid now shifts hard install

The first is to install a shift kit and the most recommended one is from TransGo. I'm not currently in a position to be able to get a replacement tranny or rebuilt this one, but have found there are some remedies that may extend it's life. I've heard some instances where others have had these symptoms only in the summer but not in the winter, so I think it relates to heat but these cases I think are inconsistent. 0.6 seconds to shift, the pcm will raise line pressure to prevent slippage. If it consistently takes longer than approx. I've been digging around on the internet looking for causes and possible solutions and discovered that it appears to be related to shift timing once it's warmed up and the fluid is hot. Who knows, but I'm in the process of replacing all the fluids and filters regardless. However, this could also be because the car lot recently replaced the fluid.

The fluid is bright red, does not smell burnt, and appears to be in good condition. The shifts aren't bone-jarring, but noticably harder, and I went to AZ to see if any codes came up on their scanner and none were found. It only does this after about 25-30 minutes of city driving, otherwise it shifts well when it's cold or on the highway. I recently bought a 2000 Buick Century with 123k miles on the odometer and with what I believe is the 4T65-E transmission and discovered that at times it will shift hard. here, but sometimes all the opinions can be overwhelming. Sorry it's so long, but felt some background would be helpful.