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1

In newer automatic cars, you won't be hurting the engine by switching from reverse to drive because the car will wait in neutral before actually going into gear. So if you don't have this feature, you could potentially damage things connected to the drivetrain by putting so much force on the torque converter.


2

A slight RPM increase when shifting from "D" to neutral is normal. The reason for this is the engaged transmission is putting a slight load on the engine and slowing it down. In neutral the engine is doing less work because it is not trying to turn the drivetrain.


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Yes, overheating the engine can damage head gaskets and warp or crack the head(s) (4 cylinders have one head). On these types of engines, the heads mounts to the top of the engine and are (typically) made of aluminum. The engine, on the other hand, is made of cast iron and is very thick and heavy. So, when the engine gets too hot it can withstand the ...


3

If the gauge went all the way to the "H" you have no idea how hot the motor actually got because the gauge was at it maximum. If you had a leak the cooling system was low on coolant. the more coolant lost the hotter the engine ran. There is a good chance some damage was done from the motor overheating. There are tests your mechanic can do to confirm a bad ...


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Strangely, after about 1500 miles the problem went away. I'm not sure why this is, though I was told by the individual that helped me with the replacement that new pumps sometimes require a "break in" period. I haven't heard that opinion echoed anywhere else, however it seems to have been the case for me... If it changes I will update! Thanks again for ...



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