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flakey 4-speed. need theories 

 

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 Post subject: flakey 4-speed. need theories
Posted: Thu Dec 02, 2010 8:57 pm 
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Age: 32

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Joined: 23rd Apr 2009

Ride: Ba Falcon XL Ute

Location: Hobart
TAS, Australia

evening fordmodders

Yesterday my BA 4-speed trans was slipping so badly, i could not get any forward movement uphill from a standing start, while cold. I could not test reverse as i had a car behind mine. I tried for 30 seconds to get movement, but no luck.

today however, it had forward movement from standing start while cold.

My box has been flakey at best, with it consistently sitting at around converter stall speed (2250rpm) at around 1/4 to 1/3 accellerator application once warmed up.

I recently installed a reconditioned torque converter as i suspected this to be the cause. At the same time i also installed a trans cooler.

Oil level is full and is checked regularly.

Vehicle has done 160,000k

can anyone shed some light as to which components are failing in the transmission (bands, clutches, etc) if any at all?

i believe im in for another 4-speed.

cheers
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 Post subject: Re: flakey 4-speed. need theories
Posted: Thu Dec 02, 2010 10:51 pm 
Getting Side Ways
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Any fault codes in the ECU?

 

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 Post subject: Re: flakey 4-speed. need theories
Posted: Thu Dec 02, 2010 10:56 pm 
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Age: 32

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Joined: 23rd Apr 2009

Ride: Ba Falcon XL Ute

Location: Hobart
TAS, Australia

nope, non showing up.

I have even used a scantool, with no ECU codes registered
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 Post subject: Re: flakey 4-speed. need theories
Posted: Fri Dec 03, 2010 1:33 am 
Getting Side Ways
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Ride: 66 Coupe

Location: Perth
WA, Australia

have you had the pan off the gearbox?
might be the pump on the trans, they are common for failing
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 Post subject: Re: flakey 4-speed. need theories
Posted: Fri Dec 03, 2010 8:58 am 
Getting Side Ways
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Power: 175 rwkw

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NSW, Australia

mate my BF does exactly what you described occasionaly, it like it doesnt engage drive when on a hill cold. I usually just give it a bit more gas and change gears manually and it sorts itself out. As for sitting a revs etc it doesnt do anything like that however on the very first take off in the morning if i give it some gas it almost stalls where as if i let the idle take off and then press the accelerator it takes off fine.

I just put it down to the s**t 4sp auto and live with it, would have gotten a manual if i could, i have always said if my auto s**t itself i would weigh up the cost of getting a new one or converting it to manual, i think i would go with the latter though ;-)

 

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 Post subject: Re: flakey 4-speed. need theories
Posted: Fri Dec 03, 2010 3:27 pm 
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Age: 32

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Ride: Ba Falcon XL Ute

Location: Hobart
TAS, Australia

think i may just get an auto trans specialist to take a look.

just need to find a good one in hobart
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 Post subject: Re: flakey 4-speed. need theories
Posted: Sat Dec 04, 2010 12:43 am 
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Ride: Kia Rio - 1.4L Auto

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VIC, Australia

You 100% sure its full.

Should be checked when warmish, but with the car running, preferably with trans in drive.

Can be a 1 to 1.5l difference between this method and checking when cold or not running.
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 Post subject: Re: flakey 4-speed. need theories
Posted: Sat Dec 04, 2010 3:26 am 
Getting Side Ways
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Location: Hobart
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theres a transmission overhaul specilist out glenorchy, they do lpg conversions also

 

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