15-12-2016, 10:02 PM
(15-12-2016, 08:59 PM)Nexus Wrote:
- On a cold engine, 1st gear hangs for a while before a harsh shift up to 2nd (hanging can be intentional to warm the engine quicker but should be smooth) Low fluid level, there's no control from the engine ecu or sensors to the transmission other than TPS.
- Even on a warm engine, sitting in traffic 1st to 2nd, then 2nd down to 1st clunky Clunky shifting on 2nd and 1st is a sure sign that the fluid level is low or the solenoid(s) are sticking.
- Temporary, complete lose of speedometer when coolant gauge reaches roughly 70c. Speedometer reading returns after 1-2mins, occurs daily. This is most likely coincidental, Had the same thing and replacing the new sensor with a decent brand one cured it. The cheap ebay ones went open circuit when they got hot.
- With car in P or N, shifting to D or R takes a few seconds. Maybe followed by humming noise while stationary in D or R (Hydraulic pump). Low fluid level
- The obvious one: Sport & Snow icons both flashing simultaneously when ignition switched on. This is the Fluid Wear Counter or Check/Replace Fluid warning. This is by design, it's the startup check by the transmission ecu although they shouldn't flash more than a cpl of seconds. When they flash while being driven it's caused by low fluid 90% of the time.
The transmissions were supposed to be a "sealed for life" item but invariably leaked fluid.
I've had,rebuilt and worked on both the early and later transmissions and the symptoms remain constant regardless of the solenoid type.
I personally think the older solenoids are better provided the rest of the box is working well. (valve block, converter and fluid is good)
My son currently has one with 1/2 milllion Km's on it and still going strong.