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2007 Chevrolet Silverado and GMC Sierra - First Impressions

707 messages,  Last post on Mar 04, 2008 at 11:34 AM

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What is this discussion about? Chevrolet Silverado 1500, GMC Sierra 1500, Truck

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#286 of 707 Re: Help! 4.8ltr or 5.3ltr with A.F.M. [bobberino] by dagolfer Jan 21, 2007 (3:11 pm)
Replying to: bobberino (Dec 28, 2006 7:58 pm) I too was concerned about the 80's problem with the 8/4 cylinder effort. I posed this question to the local GM service manager and was advised the old problem with that system was oil was not being distributed to the cylinders properly when 4 cylinders shut down. The new system is totally redesigned and is warranted for 100,000 miles.   Regarding the 4.8 versus the 5.3 with fuel management. I had an 05 Silverado with the 4.8 and had all the power I needed. Average gas mileage was 17.5. Now I have the 2007 Silverado with 5.3 and fuel management (2,000 miles) and have an average MPG of 14.5. You do the math. I drive alot of highway miles and do not pull anything. Replies to this message: rockylee (Jan 22, 2007 10:29 pm) dagolfer (Jan 23, 2007 9:20 am) rockylee (Jan 23, 2007 10:35 am) and 1 more... evergreen (Jan 27, 2007 12:20 pm)
#287 of 707 Re: 2007 Silverado [chrmdome] by dick2 Jan 22, 2007 (3:18 pm)
Replying to: chrmdome (Jan 17, 2007 9:23 pm) YOU SHOULDN'T HAVE ANY TROUBLE PULLING THAT WEIGHT WITH THAT HP.
#288 of 707 Re: Help! 4.8ltr or 5.3ltr with A.F.M. [dagolfer] by rockylee Jan 22, 2007 (10:29 pm)
Replying to: dagolfer (Jan 21, 2007 3:11 pm) You will get better mpg after it gets broken in. My buddy at work is only getting 13.1 mpg in his 06' Toyota on the highway. Is your Silverado shutting down to 4-cylinders on cruise control ?????   Rocky Replies to this message: dagolfer (Jan 23, 2007 9:20 am) rockylee (Jan 23, 2007 10:35 am) tpj1959 (Feb 06, 2007 1:32 pm)
#289 of 707 Re: Help! 4.8ltr or 5.3ltr with A.F.M. [rockylee] by dagolfer Jan 23, 2007 (9:20 am)
Replying to: rockylee (Jan 22, 2007 10:29 pm) Local Dealer says gas mileage should improve at 5,000 to 7500 miles. Yes, at cruise when on a level ground, the system shuts down to 4 cylinders. But as soon as there is a slight grade or head wind it is back to 8 cylinders.   DaGolfer Replies to this message: rockylee (Jan 23, 2007 10:35 am) tpj1959 (Feb 06, 2007 1:32 pm)
#290 of 707 Re: Help! 4.8ltr or 5.3ltr with A.F.M. [dagolfer] by rockylee Jan 23, 2007 (10:35 am)
Replying to: dagolfer (Jan 23, 2007 9:20 am) Yeah the DOD system I heard is quite sensitive. I'd like to see GM improve the sensitivity of this system. The good thing is this fall the 2-mode will be available and should jump fuel economy gains to 25 mpg avg. 30 mpg might be possible on a level street with the 2-mode and DOD.   Rocky Replies to this message: tpj1959 (Feb 06, 2007 1:32 pm)
#291 of 707 Chevy and GMC Look Good But??? by sky33 Jan 23, 2007 (12:27 pm)
#292 of 707 Chevy and GMC look Good But???? by sky33 Jan 23, 2007 (12:42 pm)
I have been looking for a reason to get back into a GM as I grew up on them. However, due to the many quality issues I went to foreign makes and have been pretty happy. Well now that the general has come out with these two pick-ups, I really like both of them more so the GMC styling. Now that the Tundra is coming out I think that might be the better choice. I think GM's trucks stack up well with the tundra however, as with all the generals products you worry how they'll hold up after five years. Believe me I've had my share of GM cars that at some point you have to open the passenger door to get in the car because the other door doesnt'work . How do others feel about these two pick-ups (Tundra/Chevy-GMC) Do you trust GM's quality now? Replies to this message: overt (Jan 27, 2007 5:12 am) tpj1959 (Feb 06, 2007 9:10 am) rockylee (Feb 08, 2007 5:27 am)
#293 of 707 For those who want to cpmpare... by kcram HOST Jan 23, 2007 (6:31 pm)
...we invite you to jump in the existing Toyota Tundra vs Chevy Silverado discussion. We expect this to heat up as the Tundra begins to make its presence.   kcram - Pickups Host
#294 of 707 Re: Chevy and GMC look Good But???? [sky33] by overt Jan 27, 2007 (5:12 am)
Replying to: sky33 (Jan 23, 2007 12:42 pm) I've had my 2007 Silverado Ext Cab Z-71 for two weeks now and i'm totally impressed with it. This will be my 10th Chevy pickup and other then some very minor issues that were covered by the warranty these trucks are worth the investment. My past trucks were used for Search and Rescue work hauling both team members and equipment into the "back 40" and there was never an issue. The trucks did their job. That is a big selling feature with me.
#295 of 707 Re: Help! 4.8ltr or 5.3ltr with A.F.M. [dagolfer] by evergreen Jan 27, 2007 (12:20 pm)
Replying to: dagolfer (Jan 21, 2007 3:11 pm) I have a 2000 Sierra with the 5.3 and made a trip from Oregon to Denver and back during the holidays. I got 20 mpg overall. I get about 17-18 mpg in normal mixed driving around here. I am very pleased. The truck has been trouble free except for that rear spring slap some Sierra/Silverados get. I was told I could spend $100 to have some lubricant applied which may be of some benefit but since it only happens on really rough roads I haven't done anything about it.

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