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#1
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Duty Sol A?
I have a 4.44 tranny in my svx and have had it for a few months now. Every few starts the power light blinks and i get code 11 which is the Duty Solenoid A. More so when the car is cold the tranny likes to hesitate when im accelerating. It doesent seem like it is on the way out or anything but like it isnt getting the full power. When warm, this problem doesent happen as much but I can still feel it through the gears while accelerating. Im not exactly sure what solenoid A does, but would it casue the symptoms im having. Sometimes it seems to work great but more than less I can definitley feel the hesitation.
Secondly. Has anyone else had a problem with the E brake light on when cold . I make sure the brake is completley down and sometimes it goes away after warm but sure enough every morning i start the car it comes on for a while. sometimes it comes on after driving for a minute and then goes away after its warm and i shut the engine off and back on. Any way these problems are related. Any help appreciated Thanks!!
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-92 Ebony LSL, complete with all the problems -New self paint job; charcol metallic silver -4.44 tranny, Nicknamed the SexVX : ) |
#2
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Re: Duty Sol A?
The A solenoid controls transmission line pressure. If it is faulty and is not closing properly, you will have abnormally low line pressure. If it sticking closed, you will have abnormally high pressure.
P.S. A wiring or connector fault would also cause the problem and result in a code. There will be no relationship between the two problems you describe. The brake problem will most likely be caused by the switch operated by the brake pedal; i.e. being sticky, out of adjustment or faulty, on an intermittent basis. Quote:
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Trevor, New Zealand. As a child, on cold mornings I gladly stood in cowpats to warm my bare feet, but I detest bull$hit! Last edited by Trevor; 07-28-2009 at 09:20 PM. Reason: P.S. Added |
#3
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Re: Duty Sol A?
Thanks Trev. Would you happen to have a pic of the resistor. Im told its behing the battery but im not really sure what im looking for. Also when i test with a voltmeter do i have the car running. Im just not very good with electrical anything.
Thanks
__________________
-92 Ebony LSL, complete with all the problems -New self paint job; charcol metallic silver -4.44 tranny, Nicknamed the SexVX : ) |
#4
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Re: Duty Sol A?
Quote:
I believe its pushing down on the brake fluid level switch.
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www.svxfiles.com The first SuperCharged SVX, the first 4.44 gears, the first equal length headers, the first phenolic spacers, the first Class Glass fiberglass hood, the first with 4, 4.44s in his driveway Fiberglass Hood thread My locker 4.44 Swap link |
#5
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Re: Duty Sol A?
Thanks SVXfiles, ill do that today and see if that helps.
__________________
-92 Ebony LSL, complete with all the problems -New self paint job; charcol metallic silver -4.44 tranny, Nicknamed the SexVX : ) |
#6
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Re: Duty Sol A?
Quote:
It should measure between 9 and 15 ohms and is usually 12 ohms. P.S. With the plug disconnected.
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Trevor, New Zealand. As a child, on cold mornings I gladly stood in cowpats to warm my bare feet, but I detest bull$hit! Last edited by Trevor; 07-31-2009 at 06:18 AM. Reason: P.S. |
#7
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Re: Duty Sol A?
You could easily check the resistance at connector T2 for the duty A solenoid, If resistance is either 0 or infinite than there is your problem. I think the solenoid winding is around 10 or 20 ohms if I recall correctly. That the only way the computer is going to detect and display that code, it sees an open or short circuit. It does not have the ability to detect a mechanically stuck plunger. Usually, a resistor fault will display a different code than 11 but I'm not saying it isn't the cause, and its easy to check anyway. I've recently been through quite a lot of experimentation with this circuit and it's pretty simple. If someone has been inside your transmission they could have left the ground loose that grounds the solenoid pack, this might cause an intermittent error code. Good luck, you don't want a duty A failure because it can easily take out a brand new transmission in a few hundred miles.
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2007 GS 450h-Active Stabilizer/Radar cruise 1994 L Blue 3.70 VTD ASE Master Automobile ASE Advanced Level Specialist Toyota Master Diagnostic Technician (former life) |
#8
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Re: Duty Sol A?
Quote:
__________________
2007 GS 450h-Active Stabilizer/Radar cruise 1994 L Blue 3.70 VTD ASE Master Automobile ASE Advanced Level Specialist Toyota Master Diagnostic Technician (former life) |
#9
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Re: Duty Sol A?
Thanks for all the input. So it may be wise to let my svx sit and use my truck for work until i can get it taken care of then.
__________________
-92 Ebony LSL, complete with all the problems -New self paint job; charcol metallic silver -4.44 tranny, Nicknamed the SexVX : ) |
#10
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Re: Duty Sol A?
In my opinion yes. According to the repair manual the solenoid should default to a position which will allow full line pressure, which would have the effect of making the shifts very firm, but if the solenoid is not functioning properly for whatever reason and line pressure is allowed to be lower than it should be, there could be a situation in which the clutches or the band were allowed to slip due to lack of holding force, which is bad. I have had this experience first hand, and it killed my transmission in very short order. Go try and check all the measurements everyone has suggested including the measurement across the transmission connector of the A solenoid and the 12 ohm resistor and let us know what you find, replacement of the solenoid pack is not difficult and can be done at a reasonable cost should it be the root cause.
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2007 GS 450h-Active Stabilizer/Radar cruise 1994 L Blue 3.70 VTD ASE Master Automobile ASE Advanced Level Specialist Toyota Master Diagnostic Technician (former life) |
#11
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Re: Duty Sol A?
Exactly why I inserted my instruction. Why rub it in?
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Trevor, New Zealand. As a child, on cold mornings I gladly stood in cowpats to warm my bare feet, but I detest bull$hit! |
#12
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Re: Duty Sol A?
Thanks guys. I will have my electrician friend go over everythig for me. Just another ? My power light only blinks on certain starts, it doesent occur on every startup and there doesent seem to be a pattern, is this normal or does it just mean my problem is intermittent.
__________________
-92 Ebony LSL, complete with all the problems -New self paint job; charcol metallic silver -4.44 tranny, Nicknamed the SexVX : ) |
#13
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Re: Duty Sol A?
Quote:
If nothing turns up, this would indicate a possible fault within the diagnostic system.
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Trevor, New Zealand. As a child, on cold mornings I gladly stood in cowpats to warm my bare feet, but I detest bull$hit! |
#14
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Re: Duty Sol A?
The code still reads when i run the diagnostic test. It comes up code 11 in memory and current. Ive started my car prolly about 10 times today with no flashing tho...I just hope it doesent blow up on me
__________________
-92 Ebony LSL, complete with all the problems -New self paint job; charcol metallic silver -4.44 tranny, Nicknamed the SexVX : ) |
#15
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Re: Duty Sol A?
I gather you can cancel the code. If so, everything indicates an intermittent fault, as you suspected.
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Trevor, New Zealand. As a child, on cold mornings I gladly stood in cowpats to warm my bare feet, but I detest bull$hit! |
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