having an issue with my 4.7 ram

[Liam Gracey]

I'm wondering if anyone has had this issue before and is able to help, so i have a 2013 ram 1500 with the 4.7L V8 and I'm noticing when cruising the rpms will fluctuate (around 100-300 Rpms) i just recently noticed this issue.. I'm hoping that it's not a transmission issue but i'm not sure.

my truck is at 91000 kms as of right now, it is also just rear wheel drive if that effects anything.

 

[Nate4x4]

I'm wondering if anyone has had this issue before and is able to help, so i have a 2013 ram 1500 with the 4.7L V8 and I'm noticing when cruising the rpms will fluctuate (around 100-300 Rpms) i just recently noticed this issue.. I'm hoping that it's not a transmission issue but i'm not sure.

my truck is at 91000 kms as of right now, it is also just rear wheel drive if that effects anything.

It sounds like your torque converter is locking/unlocking to maintain the speed.

 

[Liam Gracey]

It sounds like your torque converter is locking/unlocking to maintain the speed.

Does that mean the torque converter is going out? Or is that just regular operation ?

 

[Nate4x4]

Does that mean the torque converter is going out? Or is that just regular operation ?

See if you can duplicate the surge without the cruise on.

Very lightly touch the brake pedal just enough to disengage tcc, without applying brakes, if the surge goes away, it is the tcc.

 

[Liam Gracey]

See if you can duplicate the surge without the cruise on.

Very lightly touch the brake pedal just enough to disengage tcc, without applying brakes, if the surge goes away, it is the tcc.

By cruising I meant just normal driving not having the cruise control on, but the other day I noticed it was doing it and I put the truck in neutral and it was still fluctuating. I find it won’t actually fluctuate if the cruise is on. I was thinking it could be a sensor or something like that.

 

[Nate4x4]

By cruising I meant just normal driving not having the cruise control on, but the other day I noticed it was doing it and I put the truck in neutral and it was still fluctuating. I find it won’t actually fluctuate if the cruise is on. I was thinking it could be a sensor or something like that.

Okay, sorry for the misunderstanding. It's more than likely the throttle body. It will need to be cleaned.

https://www.ramforum.com/threads/rpms-fluctuate-on-my-dodge.16919/

 

[Liam Gracey]

Okay, sorry for the misunderstanding. It's more than likely the throttle body...in need of some cleaning.

https://www.ramforum.com/threads/rpms-fluctuate-on-my-dodge.16919/

No worries! Thank you very much I’ll give it a try and get back to you! Thanks for the help!

 

[Nate4x4]

No worries! Thank you very much I’ll give it a try and get back to you! Thanks for the help!

Happy to help and looking forward to your feedback.