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On-Road Test Drive and Diagnostics

5:05
17:41
45.4K views

At 5:05 in

Twin Turbo Escalade First Drive: LSXcalade Is BACK! We Take It Out For a Quick Test Drive..

What happens here

The presenter takes the Escalade for its first on-road test drive. He explicitly notes the lack of power steering and the extreme manual valve body in the transmission, which is responsible for keeping the 4L80 transmission together under high power. He continuously monitors the engine's vitals on the HP Tuners laptop, specifically pointing out the coolant temperature and air-fuel ratio. He highlights the distinct whining noise from the straight-cut gears in the transmission at low speeds, comparing it to older M22 'Rock Crusher' transmissions. He also mentions the need to adjust the shifter linkage, as it's not engaging gears as expected.

Goal: Evaluate the Escalade's performance and identify immediate issues during its first on-road test.

Tools and materials

  • Cadillac Escalade Cadillac — The vehicle being test-driven
  • HP Tuners Laptop HP Tuners — Real-time monitoring of engine parameters
  • Straight-Cut Gears — Internal transmission components that produce a distinctive whine

What they say

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yeah i've never driven this thing without power steering by the only time i'd ever have is whenever it flings a belt we're getting up to uh where's the coolant temperature out there over there 174. thing has a extreme automatics full manual valve body in it it's the only reason the 4l80 is able to stay together right now we're not going to do anything crazy we're just going to you know drive around some back roads here make sure everything all the temperature all the oil pressure and everything is up the park okay the air fuel ratio just like flushed red that was the only time it did it oh yeah i have the tune analyze live on which is ms3's term for auto tune so it's gonna have a little bit of trimming around to do with the new cylinder head combination feel a lot more vibrations than or like i feel so much more of the road without power steering is odd it's weird because my brain is in uh manual mode now i'm looking for a clutch pedal and there isn't one 69. nice i let off at 69 miles an hour yes it's just like i guess that's just habit i don't know i just knew it in my soul that that was 69 apparently do you hear that whining whenever we're at low speed yeah that's the straight cut gears if i'm being honest it was really funny because i thought that there was a cop behind us with her siren on and then i realized quickly that it wasn't a cop yeah every time you are at low speed and this thing goes because the planetary gear set in the transmission is billet it's like pro mod gears they're straight cut they're not helical so they make noise like you hear the old four-speed m22 they called the rock crusher because it made noise it's because they had straight cut gears in that transmission too the shifter linkage needs some adjusting i could feel it's not quite landing in the gates like it's supposed to i would imagine it may have gotten tweaked or bent around a little bit when the transmission was all like ratchet strapped up to the um the body uh yeah yeah it ruined from texas north carolina like that everything in here works better than it does in elvis the daily driver the dom lights are better the sound system's better the heated seats are better everything's better this thing is like literally it's the nicest vehicle we have we're gonna daily drive it for a while just order some wheels for it you think you're gonna like them it's not what you would normally nobody would ever guess what we're doing so we'll just have to wait and see does anybody know…

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