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Location:
Melbourne
Registered:
May 2002
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Automatic Transmission Diagnosis
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Sun, 27 October 2002 08:51
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I have had a replacement FWD Auto put into my Nova/Corolla, which thuds when going up into 2nd gear from 1st (with an exception being when the car's temperature is about half way up the dial)...
The "mood" of the 1st-2nd shift changes with the temperature of the oil... When hot, it is smooth, when warm/cold it is a thudding nuisance!
The 2nd-3rd change is nice and smooth though.
Now, after 4 months of using the car like this, with only about 15 or so high-rev shifts from 1st to 2nd. There is traces of silver on the dipstick...
If I take off quick and get to high revs the shift is stupidly quick, infact, my poor 67Kw 4AFC nearly shits itself as the tranny drops it way back down in the rev range heheh.
Question:
Anyone know what is causing this shift to be so quick?
The auto was over-filled by a mechanic...
I can see bubbles on the dipstick after a hot day, or a hard day's driving.
Could the increase in fluid level cause this quick shift?
PRICES? Anyone had the clutches replaced, solenoids fixed etc?
Thanks in Advance!
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Location:
Montrose, VIC
Registered:
May 2002
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Re: Automatic Transmission Diagnosis
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Sun, 27 October 2002 10:16
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If you're friendly mech overfilled it, how much was it by and is it still overfull? Overfull auto's generally don't behave that nicely.
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Location:
Melbourne
Registered:
May 2002
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Re: Automatic Transmission Diagnosis
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Sun, 27 October 2002 10:27
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Draining it out tomorrow mate...
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Location:
Melbourne
Registered:
May 2002
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Re: Automatic Transmission Diagnosis
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Mon, 28 October 2002 14:50
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Found this sight 
http://www.autorepair.about.com/library/weekly/aa0 72702e.htm
Harsh 1-2 Upshift
Intermediate band adjustment incorrect.
Intermediate band seal or piston damaged.
Intermediate band friction element or lever rod damaged.
Direct clutch drum damaged, outer diameter out of specification.
Main control assembly gaskets damaged or bolt out of torque.
Main control separator plate damaged.
Main control solenoid stuck or damaged.
Please be because it is overfilled! Frickin exams!
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