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Australian Falcons Discuss the australian born and bred models here. Includes the 80's 90's and present day Falcons offered by Ford Oz.

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Old 06-26-2013, 05:37   #1 (permalink)
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NC Fairlane slight shudder under light load at 80KM/H +/- 10KM/h

Can't figure out if it's the transmission or the ignition/fuel system...

The beast is on gas, and has a number of clicks on the clock. But otherwise is a straight up and down car.

It is a NC '93 V8 Fairlane GHIA.

So, motoring along at about 80 k's the car starts to lightly shudder, as if it's hunting for overdrive... it's not a violent shudder and the taco shows a fairly steady 1600ish RPM.

Flick the switch to 'power' mode and the shudder goes away and rev adjust up to around 1900-2000 RPM.

Sometimes happens in cruise mode at around 100KM/H.

Recently serviced Auto and engine. (no tune). No change.

Starting to think it might be something with the gas tune...

Any ideas?...
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Old 06-26-2013, 18:04   #2 (permalink)
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Re: NC Fairlane slight shudder under light load at 80KM/H +/- 10KM/h

Ever change the transmission fluid and filter?
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Old 06-28-2013, 02:21   #3 (permalink)
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Re: NC Fairlane slight shudder under light load at 80KM/H +/- 10KM/h

Yes changed the auto trans fluid.

No good...

Got a bum steer with the service kit, got told there was no kit and later found out that there is a kit...

So will be having another go.
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