Incredible amount of knowledge!! Thank You! I have an 01 tahoe. Ran perfect, then yesterday out of the blue, it just wouldnt shift after 1st gear while in drive. While in drive it will rev out 1st gear but no shifting 1st gear feels good still.. Also if i take the rpms up in 1st, there is no resistance when i let off the throttle, in other words it wont hold you back when throttle is released in 1 st. Even if the rpms are around 3 or 4000.........Fluid looks clean and at the proper level. Any Ideas?
@@thereason3763 No, I'm talking about one that will show you the data from the computer. No light on does not mean there are not any codes either. Would be good to know if the computer is even commanding it to shift.
The best mechanic I have ever seen
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Incredible amount of knowledge!! Thank You! I have an 01 tahoe. Ran perfect, then yesterday out of the blue, it just wouldnt shift after 1st gear while in drive. While in drive it will rev out 1st gear but no shifting 1st gear feels good still.. Also if i take the rpms up in 1st, there is no resistance when i let off the throttle, in other words it wont hold you back when throttle is released in 1 st. Even if the rpms are around 3 or 4000.........Fluid looks clean and at the proper level. Any Ideas?
Any codes in the system? If you have a scanner, see if the computer is even commanding the shifts.
@@CurmudgeonTransmission By a scanner are we talking an OBD scanner? There is no check engine light on.
@@thereason3763 No, I'm talking about one that will show you the data from the computer. No light on does not mean there are not any codes either. Would be good to know if the computer is even commanding it to shift.