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Originally Posted by Dirtymech
I worked on a 1990 Toyota Corolla with an automatic transmission a few days ago. I changed the timing belt, alternator, and water pump on it.
Before, it was supposedly running fine. Afterwards, it ran fine for a day, but then the next morning developed hard idling whenever the transmission is engaged. As well as this, during hard acceleration the transmission makes a muffled grinding sound that sounds *surprisingly* like an old manual car thats putting too much load on the clutch (as when going uphill in too low RPM or in too high a gear). In neutral or park, the engine sounds just great, and you can rev it up to high RPM. Purrs like a kitten.
I don't know whether this is related to the work I did on the vehicle or not. I had to unbolt the chassis bolt at the front of the engine. It's either a 4A-FE or 4A-GE, whichever of those has the single external camshaft sprocket. Could this have been caused by missing the timing by a tooth? Like I said the engine sounds just fine in neutral, but somehow the transmission is not working properly.
The guy who owns the car is not too happy. I need to figure out whether I screwed something up during the maitenance or its just a coincidence that the transmission has developed problems. Knowing what is exactly wrong with the transmission would be great, as well as knowing what might have caused the problem to suddenly come on like this. Either way I'm probably gonna be the one who ends up fixing it.
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Hello
How many miles on this car? Is the fluid level up where it should be? What color is it? When was the las fluid/filter change done? (probably never)
No...you didn't do
ANYTHING to his trannie. What you worked on is totaly unrelated!
Take a look at the level and condition of the fluid. This will tell more.
Regards
Dan