Ford Ranger qustion

[jack707]

There a problem in the tyranny or back end I don't know witch one. When I am driving it bucks like it's trying to go into a gear and this happens a few times but I am noticing more now. I also flipped over in this truck a few years ago! So can someone help out? I check the tyranny the fluid was to the line and I added. Some gear oil in the back diff. to.

 

[sld]

There a problem in the tyranny or back end I don't know witch one. When I am driving it bucks like it's trying to go into a gear and this happens a few times but I am noticing more now. I also flipped over in this truck a few years ago! So can someone help out? I check the tyranny the fluid was to the line and I added. Some gear oil in the back diff. to.

Better get Barbara Billingsley to translate that jive!

Seriously, how about some more details. Year? Engine? Tranny? miles? etc....

 

[jack707]

4.0 engine 4x4 13th xxi auto

 

[smstonypoint]

Better get Barbara Billingsley to translate that jive!

:laughing:

Good one!

Steve

 

[Red Horse]

There a problem in the tyranny or back end I don't know witch one. When I am driving it bucks like it's trying to go into a gear and this happens a few times but I am noticing more now. I also flipped over in this truck a few years ago! So can someone help out? I check the tyranny the fluid was to the line and I added. Some gear oil in the back diff. to.

Well I have an 04, FX4 4.0 Super Cab. 75,000 miles-been in the family since new. Every now and then it won't shift out of say 2nd.- rpms will hit 3000-too much throttle pressure and it will buck. I took it to dealer and they ran codes and said..."no issues". I've since learned to pull over, shut it off and restart-end of problem-until next time.

Trans fluid looks good-color and no smell.

 

[jack707]

Well I have an 04, FX4 4.0 Super Cab. 75,000 miles-been in the family since new. Every now and then it won't shift out of say 2nd.- rpms will hit 3000-too much throttle pressure and it will buck. I took it to dealer and they ran codes and said..."no issues". I've since learned to pull over, shut it off and restart-end of problem-until next time.

Trans fluid looks good-color and no smell.

Yup tyranny fluid looks good not burnt

 

[mjw357]

Well I have an 04, FX4 4.0 Super Cab. 75,000 miles-been in the family since new. Every now and then it won't shift out of say 2nd.- rpms will hit 3000-too much throttle pressure and it will buck. I took it to dealer and they ran codes and said..."no issues". I've since learned to pull over, shut it off and restart-end of problem-until next time.

Trans fluid looks good-color and no smell.

Had a Dodge Dakota p/u at work, did the same thing. About once a month you'd have to pull over and shut it off, then it was fine.

 

[truckdiagnostics]

still trying to figure out what year you said it is, but if it is EFI engine I would look at your Mass air flow sensor and TPS(throttle position sensor) signal. When you loose the tps signal the engine thinks you let off the throttle and then reengaged, same idea with the mass air flow sensor. if it is not turning on the check engine light it has to be something not throwing a code. Typically bad coil or plugs or plug wires will throw a code. May not be drive train related been down this road before. Can be hard to find after all if it ain't broke can't fix it.

 

[KubotainNH]

Doubtful bucking is a diff issue, the diff bearing went on my son's ranger. It was loud then the rear end locked up. On the tranny side, it could do that if the torque converter was not working properly, basically lockup/unlock/lockup. Try different things like running in D3. Any other things you notice like it happens at certain rpms, temps, 10 mins after starting are examples. My Jeep used to buck like crazy 1 mile down the road from my house then after a couple mins it would be fine. No codes. It ended up being the front o2 sensor which controls fuel/air mixture. Right when it went into closed loop it would buck until the sensor warmed up a bit. It took me a month to figure out.

 

[sld]

still trying to figure out what year you said it is, but if it is EFI engine I would look at your Mass air flow sensor and TPS(throttle position sensor) signal. When you loose the tps signal the engine thinks you let off the throttle and then reengaged, same idea with the mass air flow sensor. if it is not turning on the check engine light it has to be something not throwing a code. Typically bad coil or plugs or plug wires will throw a code. May not be drive train related been down this road before. Can be hard to find after all if it ain't broke can't fix it.

Good call on the TPS. Back probe with an analog voltmeter and watch the needle sweep. If it's anything but smooth as you open and close the throttle it needs replaced. If the needle drops at some point along the otherwise smooth sweep it means your computer thinks you suddenly let off the gas.