: 2009 Escalade Changes:



hcvone
04-09-08, 05:39 PM
UPDATES:

AWD and 2WD Hybrid models
AWD and 2WD Escalade and ESV Platinum Edition (ULT); implemented fourth quarter of 2008 model year

(L9H) Vortec 6.2L Variable Value Timing V8 SFI engine

(E85) FlexFuel capability

Magnetic ride control suspension on vehicles with 22" wheels.

Side Blind Zone Alert

Power-Tilt Steering Wheel

Express-Up window feature

Bluetooth phone interface capability through OnStar

(UBS) XM NavTraffic

Next Generation OnStar navigation downloads to onboard navigation system

(394) Light Cashmere interior with Cocoa seats

(12U) Black Cherry (January-March 2008)

CHANGES:

(U3R) Audio system w/navigation now standard

(UVC) Rearview camera system now standard

Temperature and compass move from inside rearview mirror to Driver Information Center (DIC)

Front seat head restraints change from 4-way adjustability to 2-way

Second row headrests change to Protein Vinyl

Third Row center seat changes to Protein Vinyl

AWD Escalade GVWR changes from 7100 lbs. to 7300 lbs.

2WD Escalade GVWR changes from 7000 lbs. to 7100 lbs.

RGAWR changes from 4100 lbs. to 4200 lbs.

DELETIONS:

(304) Cocoa/Very Light Cashmere Interior

(AW2) 2-passenger third row seating (Escalade and Escalade ESV)

(YQ3) AM/FM/XM stereo with CD/DVD/MP3 player

(L92) Vortec 6.2L Variable Valve Timing V8 SFI engine

Dr. SS
04-12-08, 04:24 AM
whats the difference between the L92 and the L9H

Eldo1953
04-12-08, 07:30 PM
L9H is capable of running E85 ethanol. That's the only difference I can see.

GM-4-LIFE
04-14-08, 12:08 PM
The 2009 Escalade will also have AFM or active fuel management. That is another reason for the new engine designation. AFM shuts down 4 of the 8 cylinders in situations where you don't need half of the cylinders in an effort to save fuel.

SG

Palomar9
04-15-08, 12:09 AM
I heard about AFM but always wondered what is the basic mechanism. When 4 cylinders shut down, what exactly happens? Are they still reciprocating or do they stop moving? Do they just shut off the injectors? Seems like that would cause unnecessary friction as air is still being compressed and expanded.

lordkevork
04-15-08, 10:14 AM
http://www.chevrolet.com/pop/avalanche/2008/afm_en.jsp

Palomar9
04-15-08, 08:17 PM
http://www.chevrolet.com/pop/avalanche/2008/afm_en.jsp

So, it looks like the 4 deactivated cylinders continue to reciprocate, but the valves are closed and injectors shut off. I guess that's really the only practical way to do it. Seems like you would gain considerable efficiency if the deactivated cylinders could stop moving but that would be a much more complicated mechanism and maybe subject to power hesitation. Maybe the valves could be operated in such a way that you're just moving cold uncompressed air through the engine. Additional oxygen could help the catalytic converter. What do I know...

S u f D a d d y
04-29-08, 12:15 AM
This should be similar to the GMC Yukon. "Displacement on Demand"

We have a 2007, its pretty seamless.
You get a drop from V8 to V4 on the DIC and the MPG to see too.
EMS to increase above 72MPH.
At this point 2,000 RPM FEELS like where the torque curve can support moving the truck well enough along the freeway.

I notice when going ~60 MPH, & the RPMs are under 1700 or so, the vehicle can't make the slight up hill grade well without dropping back to V8 mode.

So the V4 ~21 MPG then drops down to (V8) and 15 or so MPG, with slight (squeezing the throttle) speed increases, but getting just 12 MPG on the DIC.

Essentially the vehicle seems to loose momentum slowly (from V4 and under 72 MPH) when the lower FREEWAY speed range is stuck to:
55 - 65 MPH, and it eventually drops into gas guzzling V8 mode.

Above 72 MPH and below 50 MPH (flat roads) the mileage seems like the "advertised" 21 MPH is obtainable, but here in New England its a seal-evel to 1,000 foot roller coaster hill climbing good time.

As a POINT:
for the last 15,000 miles the DIC says we are getting 16.4 MPG, combined towing, city and mostly highway 0 -1,000 ft elevation FWIW. GM Yukon 5.3L on 87 octane gas.

YMMV

-Suf

S u f D a d d y
04-29-08, 12:27 AM
I read the piece, it seems like its confusingly written as "valves" in the later paragraph.

SIMPLY PUT:

I suspect only the fuel injector solenoid & spark plug in a specific cylinder, isn't fired, causing the (apparently changing) V-4 mode to run without fuel in different cylinders (for even temp/cyl cooling?) until a decent demand like accel or uphill is needed, then the fuel inj., solenoids spray fuel to all 8 cylinders.

Stopping the "Valves" as in cam / valve train (intake and exhaust) from opening and closing as normally in the combustion cycle of each cylinder, would be a super complicated system of questionable reliability, if not impossible to do without having a NON-interfering (valve and pistons) engine design.

I'm no engine expert, but this seems the way they did it.

I think they should sell the engine management systen V4/* to big CID classic car buffs who don't mind fuel injection:
Light throttle is fuel economy, floor the peddle and get V8 performance.

-Suf



So, it looks like the 4 deactivated cylinders continue to reciprocate, but the valves are closed and injectors shut off. I guess that's really the only practical way to do it. Seems like you would gain considerable efficiency if the deactivated cylinders could stop moving but that would be a much more complicated mechanism and maybe subject to power hesitation. Maybe the valves could be operated in such a way that you're just moving cold uncompressed air through the engine. Additional oxygen could help the catalytic converter. What do I know...

Bozzzo
05-02-08, 09:38 AM
No panoramic sunroof planned for the Escalade?

mczurales
05-02-08, 10:34 AM
The order guide just changed saying that the engine is a Non-AFM Engine. The Hybrid is still a 6.0 AFM Engine though.

GM-4-LIFE
05-05-08, 07:56 PM
The order guide just changed saying that the engine is a Non-AFM Engine. The Hybrid is still a 6.0 AFM Engine though.


Can you provide a link to the 2009 ordering guide?

GM confirmed that the new L9H 6.2L engine will have AFM.

SG

GM-4-LIFE
05-06-08, 01:03 PM
mczurales,

It has been confirmed that the 2009 Escalade L9H engine WILL HAVE Active Fuel Management in addition to the E85 capability.

Here is a link that lists it under official Cadillac changes:

http://www.cheersandgears.com/forums/lofiversion/index.php?t23499.html

Also, I just confirmed this with Scott Pratt at Superior Cadillac. He seems to have all the good insider info.

Hope this helps!

SG

mczurales
05-22-08, 01:40 AM
This is directly from GM:

L9H NEW! Engine, Vortec 6.2L V8 SFI (403 hp [300.5 kW]
@ 5700 rpm, 417 lb-ft of torque [562.9 N-m] @ 4300
rpm)
S S S S -- --

LFA NEW! Engine, Vortec 6.0L Hybrid, SFI, LIVC with AFM
(332 hp [247.6 kW] @ 5100 rpm, 367 lb-ft of torque
[495.5 N-m] @ 4100 rpm)

-- -- -- -- S S

GM-4-LIFE
05-24-08, 02:20 PM
This is directly from GM:

L9H NEW! Engine, Vortec 6.2L V8 SFI (403 hp [300.5 kW]
@ 5700 rpm, 417 lb-ft of torque [562.9 N-m] @ 4300
rpm)
S S S S -- --

LFA NEW! Engine, Vortec 6.0L Hybrid, SFI, LIVC with AFM
(332 hp [247.6 kW] @ 5100 rpm, 367 lb-ft of torque
[495.5 N-m] @ 4100 rpm)

-- -- -- -- S S

According to GM, that listing hasn't been updated to reflect the L9H's AFM feature. GM stated that when the update is completed, the L9H will be listed with AFM.

Hope this helps!

SG

JJJ93z
06-01-08, 10:51 PM
When is the 09 set to release?

GM-4-LIFE
06-02-08, 05:04 PM
When is the 09 set to release?

Usually, GM ends production of the current year at the end of June and the new production year begins either the first week of July or Mid-July. It depends on how fast they re-tool the factory for the new model year.

I am sure we will start seeing 2009 Escalades at the end of July or the beginning of August.

SG

italianospeed
07-19-08, 07:17 PM
AWD Escalade GVWR changes from 7100 lbs. to 7300 lbs.

2WD Escalade GVWR changes from 7000 lbs. to 7100 lbs.

RGAWR changes from 4100 lbs. to 4200 lbs.

So did the AWD system get upgraded? I see it gained an extra 100 lbs. I know both models gained extra weight from all the extra add ons...but the extra hundred must be mechanical? because if the hybrid models have now been added then their should be 2 separate weights for 2WD & 2 for AWD. Am I right? Im curious how much the hybrid system adds...

HALO
07-20-08, 01:45 PM
I'm glad to see that GM is offering AFM in the lade and automatic windows...and my favorite standard navigation system. Infiniti has enjoyed success with offering a standard navi....I'm glad GM decided to join the party.

BlGHUMMER
08-01-08, 12:37 PM
will the changes be very noticable between the model years?

GM-4-LIFE
08-03-08, 03:06 PM
will the changes be very noticable between the model years?

I just picked up an 09 Escalade and I can tell you that the changes are worth the wait!

The 2009 has enough changes to make it more of an enjoyable SUV.

I had a 2007 Escalade for exactly 22 months of the 24 month lease term and the 2009 is a better quality vehicle and the changes for 2009 are what make it even better!

SG

HALO
08-09-08, 12:00 AM
The 2009 Escalade will also have AFM or active fuel management. That is another reason for the new engine designation. AFM shuts down 4 of the 8 cylinders in situations where you don't need half of the cylinders in an effort to save fuel.

SG

I'm glad that they did that for 2 reasons...I hope that they have figured out what has caused the engine fires and have corrected it and also because of the AFM technology...which I think is a great thing that GM is doing.