Quote:
Originally posted by blwn31
The pressures are normal in all gears with the tv cable unhooked, the boost system seems to be working as required. I think the pressure was 90 psi in P, N, D, 3, 160 PSI in R & 2 and 120 PSI to 180 PSI (Cycling not Steady) in 1 @ 1000rpm . Now this is where it gets more weird. Pulling on the TV cable to full pull if the engine is not Fully Warmed up, the pressures are much lower than they should be for full pull. After warm up, at full pull on the TV Cable, 150 PSI in P, 120 PSI to 190 PSI (Cycling not Steady) in R & 1, 240 PSI in N, 210 PSI in D, 190 PSI in 3, 180 PSI in 2. OK, one last thing, pressures are different for many different transmissions. I took reading before I tore this monster down and they were very good and steady. And yes, with a Huffed motor I am going to run on the high side of the pressure scale. What the heck is going to make the trans give me different readings everytime I do a test. This thing is driving me crazy. If the pressures are not up to snuff in 1 and 2 say bye-bye to the clutches and band!... Maybe it is the Pump? Hope that's not to much info. **) :CRY: :confused: :3dSMILE: Oh yeah:toocool:
blwn31 i dont know why your tv pressure is cycling but i think you are looking at this pressure thing wrong. the tv cable pressure only change the shift points, so you cant change it to some pressure you may like. thats pre set at the factory. if your tv pressure is to low the trans shift to quick, if the tv pressure is to high then the trans wont shift or shift late. if the trans is shifting like it should then the tv pressure is ok. now if you wont to put some extra pressure on the clutches and bands then you have to go into the valve body and change the springes and valves to each clutch pack that you wont to make stronger. putting a shift kit in. you can change the pump pressure reg. pressure in the trans and that dont have anything to do with the tv pressure or if it change it youll have to go back and readjest it to the fact. setting. go back and read the pressure reading link that denny gave me. all trans work on about the same pressure range. if you are pulling on the tv cable with your hands, then the least bit movement will cause the pressure to change , lock the cable down when you check the pressure.:cool: