A4LD automatic concerns
#1
A4LD automatic concerns
I couldnt find an exact match from any previous posts.
Transmission tends to shift hard (not enough to shake th truck just enough to feel it) upshifting and downshifting. from 45mph-65mph it feels like it might be slipping, seems like its going up and down a lot however when I put it in D it does the same thing (i put my foot on the gas to accelerate it feels what honestly feels like the driveshaft U joint clunk). I dont have a tach so I cant verify if or how much.
Also dont know if this is relevant but when I take my foot off the brake when in D it will get up to 15MPH without having to touch the gas pedal, so Im wondering if the torque converter is locked up as well?
Fluid level is ok, doesn't smell very burnt. I do plan on changing it and doing the filter as well but its going to be a month or 2 before I can get to it.
I'm not seeing anything odd MPG wise, with about 21 highway. I'm hoping I can at least get another few thousand miles out of it before it needs rebuilt/replaced.
Transmission tends to shift hard (not enough to shake th truck just enough to feel it) upshifting and downshifting. from 45mph-65mph it feels like it might be slipping, seems like its going up and down a lot however when I put it in D it does the same thing (i put my foot on the gas to accelerate it feels what honestly feels like the driveshaft U joint clunk). I dont have a tach so I cant verify if or how much.
Also dont know if this is relevant but when I take my foot off the brake when in D it will get up to 15MPH without having to touch the gas pedal, so Im wondering if the torque converter is locked up as well?
Fluid level is ok, doesn't smell very burnt. I do plan on changing it and doing the filter as well but its going to be a month or 2 before I can get to it.
I'm not seeing anything odd MPG wise, with about 21 highway. I'm hoping I can at least get another few thousand miles out of it before it needs rebuilt/replaced.
#2
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If torque converter is locked engine will stall if you stop
15mph on level road in Drive would mean idle RPMs are too high, expected is 5-7mph, not a function of torque converter
Torque converter should be locked above 45mph so should feel more like direct drive. i.e. increased engine RPM = instant mph increase, no "slipping"
What year Ranger?
1988 and up A4LD will have a TCC(torque converter lock) solenoid which should lock the torque converter when you reach a certain MPH, about 45, this requires a functioning speedometer/VSS
If a solenoid is bad that will set a code, same for bad VSS
What codes depends on the year of the Ranger
15mph on level road in Drive would mean idle RPMs are too high, expected is 5-7mph, not a function of torque converter
Torque converter should be locked above 45mph so should feel more like direct drive. i.e. increased engine RPM = instant mph increase, no "slipping"
What year Ranger?
1988 and up A4LD will have a TCC(torque converter lock) solenoid which should lock the torque converter when you reach a certain MPH, about 45, this requires a functioning speedometer/VSS
If a solenoid is bad that will set a code, same for bad VSS
What codes depends on the year of the Ranger
#3
#4
RF Veteran
iTrader: (1)
You can add some "trans fix" fluid, any brand is fine
These additives swell seal and gasket material to reduce the loss of internal pressure
All automatics run on fluid pressure
110psi need for forward and 160psi for reverse, which is why reverse is often lost first when there is a problem with internal pressure on an automatic
The pressure holds the clutches open or closed and also holds the brakes(bands) on the planetary gears
These additives swell seal and gasket material to reduce the loss of internal pressure
All automatics run on fluid pressure
110psi need for forward and 160psi for reverse, which is why reverse is often lost first when there is a problem with internal pressure on an automatic
The pressure holds the clutches open or closed and also holds the brakes(bands) on the planetary gears
#6
RF Veteran
iTrader: (1)
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