Guest bpnm
Hi,
I have 2001 corolla CE, 5 speed, 67000 miles.
I hear rattling noise when I shift from 3rd to 4th gear (noise in both gears).
It's louder after an driving it for a while. I hear it only when I am pressing accelerator,
when I take the foot off of the gas pedal, no noise. I hear it in gear 3 or 4,
little bit in 5th gear. No noise on 1st or 2nd. gear.
This noise starts at bbout 1800 to around 2200 rpm, on 3rd and 4th gear, noisier when warmed up.
I took it to transmission shop, they could not make anything of it. They lifted the car, engaged gears,
the front wheels were spinning like on the road, but I could not hear the noise outside of the car.
The mechanic could hear it inside, but only slightly. The transmission oil was fine, the color of it was
as it should be; they "kind of" excluded transmission/differential problem. They told me that the clutch
may not be the problem either. They did not know what it is. 3 mechanics looked at it, 2 of them drove it.
If I hit gas pedal in neutral or while idling, I hear no such noise.
Could it be the engine valves or something loose in camshaft area, needing to be adjust?
Another shop (over the phone) told me that the valves don't need to be adjusted,
they have hydraulic system (I dont understand that). From what i told this shop guy over the phone,
he thinks it may be a throw bearing. But the tranny shop did not say it.
The CV joints look OK, no noise when I turn the wheel. Thanks ahead for advices or opinions.
I bought the car 1100 miles ago, started noticing this 500 miles ago.
I've read somewhere in the boards about timing belt tensioner, could that be doing this rattle?
I wander why I don't hear the rattle the moment I take my foot off the gas.
It seems to be louder when driving for a while - 40 minutes or so. I don't think gears would be louder
after driving for a while if it had something to do inside the gearbox.
