Question about 5.3 liter LS4 V8

jpstax · 04-07-2007, 12:44 PM

I test drove an Impala SS and Pontiac GXP and was very impressed with their performance, but not their seating comfort. I then tested a Buick LaCrosse CXS and liked its seating comfort, but not its performance (240 hp isn't enough for me). I read Buick is coming out with the new LaCrosse Super sometime this summer, and it will have the same seats as the CXS but with a significant increase in power. My question is, has anyone heard of any problems with the 5.3 V8's Active Fuel Management (aka DOD) system? I posted the same question on Impala SS and Pontiac GXP boards but haven't had any replies yet. I'd appreciate a reply. Thanks in advance.

Corr69 · 04-07-2007, 12:50 PM

So far, I haven't read or heard of any problems with the AFM(dod) in the Tahoes. Surburbans, Impalas, GXPs.

I drove an 07 Yukon with the E85 capabl 5.3L with D0D, it was a capable motor, and watching the v4/v8 mode was addictive.

GM LS-X · 04-07-2007, 03:06 PM

While we are on it:

How do you identify a pulled out LC9 Engine (the E85 capable All Aluminum 5.3L with D0D). Or the the Truck where it still sits in. I assume one letter is a "Z"? What about the rest?

87aero · 04-09-2007, 05:08 PM

As long as ya maintain oil change intervals, they've not been known to give any trouble.

04-07-2007, 12:44 PM	#1 (permalink)
jpstax 1.8 Liter ECOTEC Join Date: Mar 2007 Posts: 53	Question about 5.3 liter LS4 V8 I test drove an Impala SS and Pontiac GXP and was very impressed with their performance, but not their seating comfort. I then tested a Buick LaCrosse CXS and liked its seating comfort, but not its performance (240 hp isn't enough for me). I read Buick is coming out with the new LaCrosse Super sometime this summer, and it will have the same seats as the CXS but with a significant increase in power. My question is, has anyone heard of any problems with the 5.3 V8's Active Fuel Management (aka DOD) system? I posted the same question on Impala SS and Pontiac GXP boards but haven't had any replies yet. I'd appreciate a reply. Thanks in advance.

04-07-2007, 12:50 PM	#2 (permalink)
Corr69 5.3 Liter Vortec V8 Join Date: Jun 2005 Location: Ontario Drives: Buick Regal GS Suzuki RM-125 Posts: 1,370	Re: Question about 5.3 liter LS4 V8 So far, I haven't read or heard of any problems with the AFM(dod) in the Tahoes. Surburbans, Impalas, GXPs. I drove an 07 Yukon with the E85 capabl 5.3L with D0D, it was a capable motor, and watching the v4/v8 mode was addictive. __________________ 1997.5 Buick Regal GS : 3'' Fenderwell CAI, 2.5'' Hogan Catback, Dynomax Superturbo Muffler, Flipped motor mounts. 14.4@96.71mph on the worlds crappiest tires.

04-07-2007, 03:06 PM	#3 (permalink)
GM LS-X 3.5 Liter V6 Join Date: Apr 2006 Location: Bavaria (Germany, Europe) Drives: 1991 Potiac Firebird 1987 VW Polo (Rabbit) Posts: 227	Re: Question about 5.3 liter LS4 V8 While we are on it: How do you identify a pulled out LC9 Engine (the E85 capable All Aluminum 5.3L with D0D). Or the the Truck where it still sits in. I assume one letter is a "Z"? What about the rest? __________________ I'm in Europe, but it ain't an Opel

04-09-2007, 05:08 PM	#4 (permalink)
87aero 3.8 Liter V6 Join Date: Sep 2004 Location: The garage usually Drives: 96 GTP Special Edition 87 Monte Carlo SS Aerocoup Posts: 494	Re: Question about 5.3 liter LS4 V8 As long as ya maintain oil change intervals, they've not been known to give any trouble. __________________ 1987 Monte Carlo SS Aerocoupe. 150,000 miles on L69 5.0 V8 -stock 1996 Grand Prix GTP Special Edition. 140,000 miles on LQ1 3.4 DOHC 24valve -not exactly stock

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