Once and for all, 80 MPH at 4000 RPM is this Normal?
12-31-2017, 06:05 PM
#1
Junior Member
Thread Starter
Join Date: Dec 2017
Posts: 2
Once and for all, 80 MPH at 4000 RPM is this Normal?
I just bought a beautiful 2004 manual Scion xA,I already did a full tune up ..
-PCV valve
-Full synthetic oil change
-Air filter
-Iridium spark plugs
-Clean Air Mass Sensor
-Clean the trothle
-Checked transmission oil
-Checked diferential oil
-Repalced thermostat
-Flushed the radiator
and when I drive it on the freeway at 80 MPH the tachometer gets all the way up to 4000 RPM.
Is this normal? If not how can I fix it?
____
-PCV valve
-Full synthetic oil change
-Air filter
-Iridium spark plugs
-Clean Air Mass Sensor
-Clean the trothle
-Checked transmission oil
-Checked diferential oil
-Repalced thermostat
-Flushed the radiator
and when I drive it on the freeway at 80 MPH the tachometer gets all the way up to 4000 RPM.
Is this normal? If not how can I fix it?
____
Last edited by MR_LUV; 05-13-2020 at 07:29 PM. Reason: typo
12-31-2017, 08:29 PM
#4
Junior Member
Thread Starter
Join Date: Dec 2017
Posts: 2
01-01-2018, 01:11 PM
#5
Senior Member
SL Member
Join Date: Jun 2007
Location: Rochester, New York
Posts: 342
Yea, unfortunately, it's perfectly normal. Mine screams along just like yours. I've often said that I wish they put a sixth gear in the manuals. Trust me though, the engine will run pretty much forever if you take care of it.
05-13-2020, 05:34 PM
#6
Senior Member
SL Member
Join Date: Mar 2019
Location: Newark, New Jersey
Posts: 267
Hi, I drove today on highway. I like the engine noise to one point. In the past I notice in neutral Scion xB 2004 usually with new clean regular oil gets to about 650-750 RPM. When the regular oil need change, in neutral speed will have RPM (revolutions per minute) close to 1,000 RPM. I replace the oil with full synthetic few years ago (The oil filter, need to be now special, compatible with the synthetic oil). So, on full synthetic oil, I get all the time 650 to 750 RPM in neutral. At 2,800 RPM the car will have like 65 Miles per hours. At 3,200 The car will have 75 miles per hour. To get 80 Miles per hour will be less than 4,000 RPM in my car for some reason. Also, I found that if I drove between 37 and 49 Miles per hour and took my leg from the gas pedal, the transmission gets some how disconnected and the RPM's will drop to about 800-900 RPM. The car will run in very efficient mode. Best speed to get more miles per gallon looks like is at 55miles per hour. I replace twice my transmission fluid and filter, to get a smooth engine RPM's. Never get a transmission flush on old models!.
Last edited by Birsan; 05-13-2020 at 05:56 PM.
05-20-2020, 01:57 AM
#8
Senior Member
SL Member
Join Date: Mar 2019
Location: Newark, New Jersey
Posts: 267
Hi, looks like is not perfectly normal in 2020. Scion xB 2004 at 80 Mile per hour have RPM shows 3,250. Can some one please let me know what the manufacturer documents have listed for this behavior? Thank you.
05-20-2020, 03:42 AM
#9
Hi, it looks like is not perfectly normal in 2020. Scion xB 2004 at 80 Mile per hour have RPM shows 3,250. Can someone please let me know what the manufacturer documents have listed for this behavior? Thank you.
From: https://www.clubxb.com/threads/auto-...l.27638/page-2
Calesta - Yup, the gearing is taller on the auto in 4th than the manual is in 5th.
Code:
Gear | Manual | Auto
Code:
1st | 3.54:1 | 2.84:1 2nd | 1.90:1 | 1.55:1 3rd | 1.31:1 | 1.00:1 4th | 0.96:1 | 0.70:1 5th | 0.81:1 | – R | 3.25:1 | 2.34:1 FD | 4.31:1 | 4.15:1
Code:
Code:
Gear | Manual | Auto 1st | 15.25 | 11.66 2nd | 8.18 | 6.43 3rd | 5.64 | 4.15 4th | 4.13 | 2.90 5th | 3.49 | 0 R | 14.00 | 9.71
Code:
Code:
rpm man1 man2 man3 man4 man5 1000 5 9 13 17 20 2000 9 17 25 34 40 3000 14 26 38 51 61 4000 19 34 50 68 81 5000 23 43 63 85 101 6000 28 52 75 102 121 7000 32 60 88 119 142 rpm auto1 auto2 auto3 auto4 1000 6 11 17 24 2000 12 22 34 49 3000 18 33 51 73 4000 24 44 68 97 5000 30 55 85 122 6000 36 66 102 146 7000 42 77 119 170
Code:
Code:
rpm auto4 man5 1000 24 20 2000 49 40 3000 73 61 4000 97 81 5000 122 101 6000 146 121 7000 170 142
Code:
Code:
speed aut4(rpm) man5(rpm) 10 411 494 20 823 989 30 1234 1483 40 1645 977
Code:
50 2057 2472 60 2468 2966 70 2879 3460 80 3291 3954 90 3702 4449 100 4113 4943
But the manual will let you use your power more efficiently as you accelerate because of the tighter ratios, so you'll spend less gas (and less time) going from 0-60mph with your foot on the floor driving the manual.
Last edited by JakeAut0; 05-20-2020 at 03:52 AM. Reason: missing quote
05-20-2020, 06:02 AM
#10
Senior Member
SL Member
Join Date: Mar 2019
Location: Newark, New Jersey
Posts: 267
@ JakeAut0, your posting is extremely clear. My trany is auto. When starting from zero speed, I use the gas pedal up and down to save the gas and to go fast from the first gear to the next gear.
Also, what I find that if the car driving at 70 MPH on neutral, the gear put in drive is smart. He chose the #5.
Question: If moving the gear from Drive to Reverse, how much time need for a good transmission to take?( in seconds). So, the reverse RPM will be 650?
Thank you.
Last week one of my neighbors had a problem with the car in the morning. He have a new car. The new cars are made with biodegradable materials and the rats are eating them. Scion xB 2004 have the transmission sensors and the wires made the old fashion, will last forever.
Also, what I find that if the car driving at 70 MPH on neutral, the gear put in drive is smart. He chose the #5.
Question: If moving the gear from Drive to Reverse, how much time need for a good transmission to take?( in seconds). So, the reverse RPM will be 650?
Thank you.
Last week one of my neighbors had a problem with the car in the morning. He have a new car. The new cars are made with biodegradable materials and the rats are eating them. Scion xB 2004 have the transmission sensors and the wires made the old fashion, will last forever.
09-06-2020, 08:39 PM
#11
Junior Member
SL Member
Join Date: Aug 2012
Posts: 3
Flushing vs. Replacing
I'm about to attempt this for the first time. What's the difference ? I thought it was the same thing.
___
Last edited by MR_LUV; 07-15-2021 at 02:03 PM. Reason: Awarded 5 Yr Badge
09-07-2020, 02:10 PM
#12
Senior Member
SL Member
Join Date: Mar 2019
Location: Newark, New Jersey
Posts: 267
@TNhands , Hi the automatic transmission have a complicate business inside. The red color fluid is circulating inside and also going in the front radiator to get a lower temperature. Many parts are depending on this transmission fluid. According with Scott Kilmer from youtube never attempt to flush an old automatic transmission. When the flushing machine is doing the work, puts lots of pressure inside to remove all the old red color liquid. Not all old transmissions will "survive" to this treatment. By replacing the transmission filter, like half of the red (or black) color will needed to be replace. After the second filter replacement looks like other 25% will be replace. In this way the transmission liquid will be replace using the natural gravity, no other power sources that may damage the transmission. Today my Scion xB 2004 have a nice driving sound, changing the speeds up and down with no problems. Also to help the transmission to work in good conditions, be sure your throtle is clean (the car radiator coolant liquid have free passing way), and on the other side the cylindrical magnet is turning easy. This way the oxygen and the returning exhaust gasses can do their work too. I can not talk about prices here because my post will be remove.
07-07-2021, 10:37 PM
#14
Not to threadjack, but I've never had an issue doing a drain + refill on a high mileage transmission but flushes are something you generally want to avoid. Doing a drain and refill every 30k is best practice and greatly helps the performance and longevity of your trans. If it has an in-line filter, I typically replace every other fluid change (every 60k). Generally they're pretty easy to do in your garage and keeps everything in the gearbox happy. Might be a little overkill for some, but I drive pretty hard and never had a trans blow up - some upwards of 300k miles.
Re: the initial question, on those older 5speeds 4k @ 80mph is normal. Very happy my tC2 is a 6MT. Still a little over 3k @ 80 but beats 4k.
Re: the initial question, on those older 5speeds 4k @ 80mph is normal. Very happy my tC2 is a 6MT. Still a little over 3k @ 80 but beats 4k.
07-15-2021, 09:44 AM
#18
Senior Member
SL Member
Join Date: Apr 2021
Location: Redlands, California
Posts: 125
9 times out of 10, Scotty Kilmer is wrong, and so is Birsan… But this time, flushing a high mileage transmission being bad is actually correct. Draining and refilling is okay, as well as changing the transmission filter (This is for automatic transmissions of course), but flushing a high mileage automatic is a bad idea because any of the friction material could be flushed out, which results in slipping and eventually failure of an automatic transmission. I don’t know why anyone watches Kilmer’s videos for anything other than a good laugh at his idiocy. Mechanics and car enthusiast alike that know what they are doing do not take him seriously.
Last edited by Low_Kei; 07-31-2021 at 03:39 AM.
07-16-2021, 05:34 PM
#19
Super Moderator
SL Member
SuperMod
Join Date: Aug 2006
Posts: 1,050
I've got my suspicions that he's also a raging alcoholic as he always sounds borderline hammered in his videos.
