Too much transmission fluid symptoms/ how to check A/T fluid level without a dipstick

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  Transmission fluid is the lifeblood of transmission. It ensures the smooth running of the engine and keeps the   transmission temperature   down since gear usually generates alot of heat. but what happens if you put too much fluid in the transmission? What are the signs of an overfilled automatic transmission? leakage of transmission seals puddles of transmission fluid underneath the vehicle foamy transmission oil transmission overheating  failure to shift properly, causing a jerking sensation what are the consequences of an overfilled automatic transmission? oil starvation  reduced lubrication reduced cooling increased frictions damage to parts damage to seals increased wear what are the signs of overfilled manual transmission? leakage of transmission seals puddles of transmission oil underneath the vehicle puddles of transmission oil inside the vehicle foamy transmission oil  tansmission overheating clutch chatter or slipping when applying the clutch difficulty pushing in the clutc

Why some Car's Engine Failed To Rev Above 3000 RPM

Most of the the new model vehicles now are equipped with many accessories, aimed at improving the power output, fuel economy and reducing emissions. 
By the time these parts/accessories begin having faults due to aging or accumulation of dirt, the vehicle will start to malfunction. There're many reasons for a problem of acceleration for many vehicles but few cases are discussed below

If your car's engine not rev up more than 3000 rpm when you pressed throttle pedal down completely, check the following parts of the engine:

Catalyst

A catalytic converter is a car's component that's used for emission and polluton control. It's a metal canister installed in the exhaust system. It's filled with chemical catalyst, usually a platinum and palladium mixture, and helps to convert  the vehicle's emissions into non harmful gases.

 The blockage of the catalyst will cause the engine to breath hard and consequently, will have revving problem. To test whether a catalyst is free, just poor water into it, if it leaks freely to the other side, then it's free.
When you detect that the catalyst of your engine is bad, quickly replace it to avoid a severe damage to the engine. After this repair you'll see that the engine will rev up normal. A usual way of detecting that catalyst is faulty is when you start noticing excessive heat inside the car compartment while driving. 

Fuel pump

For normal combustion to take place, there must be enough:
  1. air
  2. fuel
  3. spark
A reduction in any of these three components will result to abnormal work of the engine.
 If the pumping pressure of the fuel pump is low,  it'll be hard for engine to rev up, sometimes it'll off itself, when you dwell too much on the throttle pedal while trying to rev the engine up.
When replacing the fuel pump of an engine do replace the fuel filter also. use OEM spare parts always  or the original parts of accidented vehicles imported (tokumbo).

Camshaft position sensor and Crankshaft position sensor

These two sensors control the valve timing and the ignition timing respectively.
They detect when the valves are opened by the rotation of the camshafts and crankshaft, then send the signal to brain box (ECU) of the engine to supply the needed  amount of fuel and the spark needed for effective combustion of the engine.

When the two readings of these sensors are not correlated, the engine will malfunction, sometimes your engine will not be able to rev up above 3000 rpm, depending on how severe is the condition. This case will trigger a code  P0016 on toyota vehicles

Bending or damaged timing plate of the timing teeth of the crankshaft can also cause the vehicle  not to rev above 3000 rpm. 
There was a time  I replaced the  crankshaft of one 2013 Hyundai Elantra. after starting the engine, they was a check engine light, which I had to scan to know the reason.  It was  P0335 which was so severe that I couldn't rev the engine above 3000 rpm. I inspected everything, tried to change the  crankshaft sensor, inpected the wires, all to no avail until I loose back the engine. it was then I detected that the sprocket attached to the crankshaft  was pressed. I replaced it with the one on the old crankshaft, that's  how I solved the problem.  
Paying attention to every parts of the engine is very necessary when you're rebuilding an engine to avoid double work and waste of energy trying to figure what's the cause of the problem, due to your negligence.

On this same Hyundai engine, the crankshaft sensor wire has the same design as the its knocking sensor, care should be taken not to exchange them, as the engine will not be able to start, and will not rev up, even if it manages to start. 
Having OBDII scanner, even if it's a cheap one will greatly help you to pin point the likely areas of the fault on your engine. 

Incorrect timing

If you've recently worked on the engine that involved altering the valve timing or the ignition timing, just check it. normal timing of an engine is between 10 -0 degrees before TDC. The best result is at 0 degrees. Just check to confirm this and the timing marks of the camshafts must also align correctly as the  misalignment  will cause the engine to loose its revving power to the desired rpm.

symptoms of incorrect timing are:

  • shooting
  • hard starting
  • hard acceleration
  • difficulty to climb hills
  • engine vibration on idling
  • check engine light

dirty or bad injector nozzles

When you usually allows fuel to dry completely  from the tank, injectors will draw up dirts that'll block their holes. when this happens engine will not rev up fine, at times idling rough. 
when your nozzles are dirty, service them.
 
They're other things that may cause an engine not to rev up above 3000 rpm, kindly commment below if you have any contribution, or facing this kind of problem in your car, let's solve it together.

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