I'm in truck driving school and cannot downshift for a ####. I was driving down some major roads yesterday and had to constantly stop since I couldn't downshift and was coasting out of gear. I suck at downshifting at higher (35+) speeds more than lower speeds but I'd probably still fail the CDL test for coasting even if I never took the truck above 20mph.
My instructors showed me how to downshift, they gave me tips to downshift but for whatever reason it is still not clicking. It doesn't matter what transmission (I drove both a 9 & 10 speed).
Any help?
Downshifting
Discussion in 'Questions From New Drivers' started by prosidius, Nov 5, 2016.
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Take the Jake off
Let the rpms get lower
Double clutch
For me, I don't use the clutch
Go by feel
I know how to juice it between gears
But that won't work for you yetTROOPER to TRUCKER and street beater Thank this. -
First, type downshifting into the search bar, there are tons of threads on this.
Its hard to give advice with such vauge information, be more descriptive. Everything changes the scenario, speed, are you failing when going up or down hill? Is the jake on? Are you pushing the clutch to far and grabing the clutch brake? What rpm are you at when attempting the downshift... the more you can describe the better -
And the double clutch has to be quick
Boom boomdiesel drinker Thanks this. -
I can downshift with the jake on, i turn it off for up shifting, i can do it... had to learn.. but i have a habit of coming to far off the go pedal to leave it on for going up the gears...Rusty Trawler Thanks this.
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I know, but he's new and trying to pass a test
He can leave the Jake on laterstreet beater Thanks this. -
Point taken,
for the record, i only use the clutch to get moving in either direction. Dont know that I could pass the test tomorrow if i had to dc
Rusty Trawler Thanks this. -
Me neither
Everything I do is by feel
Only use the clutch from a stop
A lot of new drivers have trouble with the double clutch on a downshift
It's two actions done as one action
Needs to be fluid. -
Yup yup, and realizing you may need to at the same time, tap the go pedal to get your rpms up... downshifting using dc downhill under load ... with no miss's or grinds? Now thats skill!diesel drinker and Rusty Trawler Thank this.
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I don't recall if the jake was on. The roads I tried to downshift on were flat with no down/upgrade. I'm not engaging the clutch brake while downshifting, no.
My process for downshifting goes:
1.) Clutch, shift to neutral
a.) If I know I'm going way too fast, I'll hit the brakes before clutching to neutral.
2.) Rev RPMs to about 1500.
3.) Clutch, try for lower gear.
a.) If gear won't engage, brake a bit, rev engine and try again.
a.) If gear still won't engage, try for the same gear I just left or even a higher gear.
a.) All else fails, stop and start from scratch
I think my problem is I'm going too fast for the gear I want to downshift to.
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