Hard shifting to 1st 2nd and 3rd (1 Viewer)

[jeffKerala]

Hard shifting to 1st , and 3rd 105 1HZ with R151F gearbox
New transmission fluids changed nylon bushes new master and slave cylinder
On the original clutch, Would it be the clutch?

 

[blinkerfluid]

Hard shifting to 1st , and 3rd 105 1HZ with R151F gearbox
New transmission fluids changed nylon bushes new master and slave cylinder
On the original clutch, Would it be the clutch?

Is it hard to shift with the engine started, vehicle stationary or vehicle moving - or in engine off condition as well?

 

[jeffKerala]

hard when vehicle

Is it hard to shift with the engine started, vehicle stationary or vehicle moving - or in engine off condition as well?

When moving and the engine starts

 

[blinkerfluid]

hard when vehicle


When moving and the engine starts

If you're not moving are they good to shift in / out?

 

[jeffKerala]

If you're not moving are they good to shift in / out?

YES

 

[blinkerfluid]

YES

You probably have a worn bearing or two, worn synchro of 1st and 3rd and / or worn gears - transmission needs to be disassembled and checked

 

[jeffKerala]

You probably have a worn bearing or two, worn synchro of 1st and 3rd and / or worn gears - transmission needs to be disassembled and checked

 

[take123]

Did you double, triple, check the fluid level if it's in compliance with the Spec? Or did you hire a mech to do it for you?

What oil did you use?

Does your transmission have a dip-stick under the hood or is it a sealed transmission? What year is your truck?

I had slippage or hard shift problems from stop to go. It turned out my fluid levels were not right (too low), filling it to right level fixed it. Make sure the transmission is running at the right temperature when checking the fluid on my 2006 the FSM mentions 97F to 115F (you can use a ScanGauge tool to read the sensor readings from OBD, using a heat gun on the tranny case won't be accurate at all). It has to be in a certain range or the fluid can be expanded too much. Also you need to check the transmission fluid while the engine is RUNNING, which pushes the fluid through the system. If you're checking fluid while the engine is off it will look over filled causing you to let too much oil out.

Make sure when checking fluid level, your car is FLAT, if it's on an incline you can risk losing too much oil when checking the level.

 

[blinkerfluid]

Did you double, triple, check the fluid level if it's in compliance with the Spec? Or did you hire a mech to do it for you?

What oil did you use?

Does your transmission have a dip-stick under the hood or is it a sealed transmission? What year is your truck?

I had slippage or hard shift problems from stop to go. It turned out my fluid levels were not right (too low), filling it to right level fixed it. Make sure the transmission is running at the right temperature when checking the fluid on my 2006 the FSM mentions 97F to 115F (you can use a ScanGauge tool to read the sensor readings from OBD, using a heat gun on the tranny case won't be accurate at all). It has to be in a certain range or the fluid can be expanded too much. Also you need to check the transmission fluid while the engine is RUNNING, which pushes the fluid through the system. If you're checking fluid while the engine is off it will look over filled causing you to let too much oil out.

Make sure when checking fluid level, your car is FLAT, if it's on an incline you can risk losing too much oil when checking the level.

he has a 5-speed manual transmission,

 

[nissanh]

Try a good branded gear oil.

 

[jeffKerala]

Try a good branded gear oil.

Did you double, triple, check the fluid level if it's in compliance with the Spec? Or did you hire a mech to do it for you?

What oil did you use?

Does your transmission have a dip-stick under the hood or is it a sealed transmission? What year is your truck?

I had slippage or hard shift problems from stop to go. It turned out my fluid levels were not right (too low), filling it to right level fixed it. Make sure the transmission is running at the right temperature when checking the fluid on my 2006 the FSM mentions 97F to 115F (you can use a ScanGauge tool to read the sensor readings from OBD, using a heat gun on the tranny case won't be accurate at all). It has to be in a certain range or the fluid can be expanded too much. Also you need to check the transmission fluid while the engine is RUNNING, which pushes the fluid through the system. If you're checking fluid while the engine is off it will look over filled causing you to let too much oil out.

Make sure when checking fluid level, your car is FLAT, if it's on an incline you can risk losing too much oil when checking the level.

You probably have a worn bearing or two, worn synchro of 1st and 3rd and / or worn gears - transmission needs to be disassembled and checked

The issue was sorted out by adjusting the clutch pedal nut.
Thank you guys for the suggestions

 

[blinkerfluid]

This doesn't add up.. but congratulations anyways

 

[John Young]

The R151F is adequate but is weaker than that H series that goes into the gas engined 105. I had both of my 105 diesel transmissions taken out and inspected and both had significant wear and both had in excess of 400k km. I also took the opportunity to put in a taller 5th for more comfort on the highway. I strongly suspect you need to have your tranny out and inspected closely.

 

[jeffKerala]

The R151F is adequate but is weaker than that H series that goes into the gas engined 105. I had both of my 105 diesel transmissions taken out and inspected and both had significant wear and both had in excess of 400k km. I also took the opportunity to put in a taller 5th for more comfort on the highway. I strongly suspect you need to have your tranny out and inspected closely.

My problem was different, the clutch pedal was not fully engaging