4L60E jumps/shifts hard

[Blue95]

TPS won't cause a miss but when mine went on my 95 TBI it revved really hi then shifted from the 1-2 and not as bad from 2-3. I don't know how to check it though.

 

[Tempted]

Whats TPS spec supposed to be when checking with a multimeter? Will a bad TPS cause a ignition miss also?

It is 0-5 volts and when checked should read smooth throughout the entire range. If it goes smooth from 5-4, then gets shaky at 3 or so, and then smooths out again then the TPS has a worn spot. But I very highly doubt the TPS is causing your issues. Could be a pressure issue, but Swaggerwagon is probably correct. Start looking for a replacement.

 

[davbell22602]

What do you mean by shaky? Like a engine miss?

 

[rhino]

Should be around 0.5-0.6 no throttle, sweep to 4.5 wide open throttle.

 

[rhino]

We get a lot of these in with the number 7 checkball stuck in the plate. It's very very common. The ball wears out the plate, and sticks in the hole. Sonnex makes a replacement valvebody plate. If you pull the valvebody, replace the TCC valve also. It's the cause of the 1870 code.

 

[Tempted]

No, an inconsitency in the voltage when compared to everywhere else. The "sweep" should be smooth and progressive. I am talking about testing with a DVOM. The truck shouldn't be running. Key on engine off.

 

[davbell22602]

Is my bellhousing removable? I know its a 2 piece bellhousing but is it removable from the trany?

 

[davbell22602]

Nobody