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Re: 1993 Corolla drivetrain
On Sat, 5 Aug 2006 17:38:42 -0400, "Ralph" <nospam@thanks.com> wrote:
[color=blue]
>Jack requests:
>
>1993 Corolla LE
>285,000 km (177,000 mi)
>1.8L 7A-FE engine
>A245E 4-speed automatic transaxle
>
>
>This car makes a clunk when put into drive or reverse from standing, and
>also when the accelerator is released at speed.
>
>On the hoist I can produce the noise by turning either front wheel back and
>forth. The sound is not coming from the area of the wheels. It seems to be
>coming from the centre of the car (transaxle area).
>
>Your comments on diagnosis and repair are welcome.[/color]
Slop in the drivetrain - and since it's a FWD, the knee-jerk "It's a
bad U-Joint or worn Slip Splines on the driveshaft" doesn't apply.
It has to be either a sloppy CV joint on one of the front
half-shafts, or in the final drive "rear end" gears somewhere.
Get a trained ear to listen to the clunk, but with that kind of
mileage on the car I'd check the half-shafts first.
Go over the rubber boots at both ends looking carefully for cracks
or tears. If they get torn and are left exposed the dirt and sand
gets inside and mixes with the grease, and will trash the CV joint in
no time at all.
Rebuilt half-shafts aren't expensive - around $100 new each side,
$70 remanufactured each side (not counting core charge), and they
practically snap right out, snap right in.
--<< Bruce >>--
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