Highway RPMs seem high?
#1
Highway RPMs seem high?
Hi there, first off my sig is my mods. Truck pulls fine around town and seems like the tranny isn't slipping.. I get on the highway, doing 100 km/h (60 mph I think?) my truck is seeing 2400 RPM consistently ! I can verify it is in O/D as it will go in and out and I have to pedal it to get it into O/D so I can do 100.. I have an A518, 3.54 gears as far as I know, and this seems obnoxiously high.. Any advice or anyone else seeing these kind of rpms?
#3
#4
Truck fuels past 3500.. I can free rev to 4K (not that I do) but I have verified at more than one stoplight that it will fuel up top . Anyway to check the TQ? I'm doing a fluid/filter change as we speak and am going to turn up the line pressure and tighten the bands..
#6
#7
Even with 4.10s your rpms should be about 1800.
You can check ratios using this calculator at the bottom of the page : Engine RPM Calculator
You can check ratios using this calculator at the bottom of the page : Engine RPM Calculator
#9
Any sure fire way to check rpms besides another tach? I don't think it could be out almost 1000 rpm, but then again it does spin off the alternator..
---AutoMerged DoublePost---
Well, I changed the fluid, filter, adjusted the bands on the tranny and bumped the line pressure a bit and now it seems to run 2300 or so. There were very very few metal shavings in the pan, and the fluid was in tip-top shape.
---AutoMerged DoublePost---
Well, I changed the fluid, filter, adjusted the bands on the tranny and bumped the line pressure a bit and now it seems to run 2300 or so. There were very very few metal shavings in the pan, and the fluid was in tip-top shape.
Last edited by No_chip_92; 10-05-2013 at 10:43 AM. Reason: Automerged Doublepost
#10