RPMs at highway speeds?

[gloch]

What are your RPMs at highway speeds? My 03 V8 has been making an odd sound recently at 70mph+ almost like it needs to shift, but the RPMs are at around 2k. Is this normal for this speed?

 

[Drift Monkey]

What are your RPMs at highway speeds? My 03 V8 has been making an odd sound recently at 70mph+ almost like it needs to shift, but the RPMs are at around 2k. Is this normal for this speed?

Around 2k, maybe slightly higher but I have the 5sp transmission.

Maybe you need a transmission fluid exchange?

 

[gloch]

This is what I am wondering. How often should the tranny oil be changed?

 

[4Runner4Runner4]

I just had my transmission fluid changed at 200k. I suspect it's probably a good idea to do it before then, though. No off-roading, no towing, just a highway warrior.

 

[Drift Monkey]

This is what I am wondering. How often should the tranny oil be changed?

60k if towing or harsh conditions...100k otherwise should be fine. People have gone longer, however. Toyota originally said “lifetime fluid” but I don’t buy it.

I just recently did mine at ~130k but I had no prior issues. Under $60 for 12 quarts of Valvoline MaxLife and I did it in my driveway.

 

[Brutalguyracing]

What are your RPMs at highway speeds? My 03 V8 has been making an odd sound recently at 70mph+ almost like it needs to shift, but the RPMs are at around 2k. Is this normal for this speed?

03 v8 here
Mine is about the same

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[Montego Murph]

03 v8 here
Mine is about the same

Agreed, that sounds about normal.

I wonder if your torque converter isn't going into lockup mode and that's the "need to shift" feeling you're describing.

 

[AuSeeker]

Agreed, that sounds about normal.

I wonder if your torque converter isn't going into lockup mode and that's the "need to shift" feeling you're describing.

I'm pretty sure if the torque converter isn't locking up the RPMs would be higher than normal, but I could be wrong, at the very least the RPMS would fluctuate at a constant speed if the lockup clutch friction plates are slipping.

I also think it would throw a code.

 

[MrSeth]

04 V8, granted I'm on larger tires but I usually run 2200-2400 at 75mph

 

[gloch]

Thanks all. I'm going to start with a transmission oil change and see if that helps.

 

[cbailey1523]

04 V8, granted I'm on larger tires but I usually run 2200-2400 at 75mph

I have the same setup with the same RPM.

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[NorthWesty]

Usually keep it around 2k RPM on the highway, v8 5spd. I find hills to be annoying and it constantly shifts into 4th and wont get into 5th for longer than I want it to. In cruise control it has to be flat, whenever the cruise control tries to pick up speed, it drops down 4th and gives it full beans!

 

[rdruss]

Sounds like you need your cruise control adjusted.