TN454Monte Posted June 3, 2008 Share Posted June 3, 2008 I'm having some tranny issues. Here are some of the things I'm encountereing, any ideas of if I can fix this or if I need to start looking at a transmission swap would be appreciated. Beofre I start the Trans has fresh fluid in it, and I was told by the previous owner that it has a shift kit in it from B&M, I think it does as if I can get it to shift manually I get a nice bark out of my tires going into L2. 1. Transmission weak in Reverse, you feel it engage and the RPMS drop as normal but when you apply throttle it revs, and then will slowly beigin to move, seems like it needs to build pressure. 2. Will not go into L1. The exception to this is if I have the Gear selector in L1 position, and I am climbing a steep hill on the mountain, the transmission at around 2000 rpm sometimes will suddenly down shift into low. 3. Normal driving no matter what I do, or where the gear selector is, off the line it starts in L2 making the car very sluggish until I'm into the upper RPMS for 2nd then it starts hauling hard and shifts into 3rd with a nice firm feel. Any ideas of what would cause this type of performance? Quote Link to comment Share on other sites More sharing options...
monte70car Posted June 3, 2008 Share Posted June 3, 2008 greg just a though but is the trans low on fuild? have you smelled the fuild to see if its burnt? as allen sound a 700r4 will wake anything up even if it has a highway gear. Quote Link to comment Share on other sites More sharing options...
alex's72fgmc Posted June 3, 2008 Share Posted June 3, 2008 yep if the trans fluid is low you could get those symtoms also if your 1st/reverse band "since it is on the same fluid circuit" is about to go time for a rebuild if you have fluid in it. Quote Link to comment Share on other sites More sharing options...
kc8oye Posted June 4, 2008 Share Posted June 4, 2008 what trans is it? if it's a TH350, put a vacuum pump on the vac. modulator and make sure it will hold a vacuum (don't go over 14" or so, or you will rupture it) also make sure the kickdown cable is not bound up. disconnect it and pull on it by hand.. it should slide out somewhere around an inch or a bit less.. then slide back in (pulled by a spring) smoothly. if it's a TH400.. you are on your own lol Quote Link to comment Share on other sites More sharing options...
monte70car Posted June 4, 2008 Share Posted June 4, 2008 400 you have two options the kickdown swtich above the gas paddel or the vacunnm line. Quote Link to comment Share on other sites More sharing options...
kc8oye Posted June 4, 2008 Share Posted June 4, 2008 my motto is start CHEAP! for the sake of a few minutes to verify as many of the possibilities.... Quote Link to comment Share on other sites More sharing options...
TN454Monte Posted June 5, 2008 Author Share Posted June 5, 2008 Sorry should of specifed..it is a TH 350 Quote Link to comment Share on other sites More sharing options...
monte70car Posted June 5, 2008 Share Posted June 5, 2008 greg like i posted earlier check the fuild it will give you a hint if the bands are burnt. it could also be lower on fuild. you also might want to check and make sure the kickdown cable is hooked up. Quote Link to comment Share on other sites More sharing options...
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