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Comments
good results. Should I use the GM recommended 5w-30 or can I keep using the straight 30w. Will there be any lube problems using the 30w. The truck will have Texas summers to deal with! Any suggestions? Thanks.
For the yr 2000 model 5.3 they went up from 270 to 285 which for the 2001 model yr is the same
The smaller motors already put out power higher in the rev range, and produce more hp per cubic inch than the 6.0. You could probably get more power in the 6.0 by putting the cams from the 4.8 or 5.3 in it.
I have owned both the 4.8 and the 6.0.
Ken
markbuck #460 -- I read (in Machine Design magazine, I believe) that the HP/torque increases were attributed to the smaller engines getting the cam from the 6.0.
Sorry for any misinformation I am responsible for here. I stick by my comment about the same camshaft in all 3 engines.
BigJohn
BigJohn, your truck, no matter what engine you have, has either a transmission or a sensor problem. GET IT CHECKED OUT, if you have to, change dealerships. No, you should not be useing tow haul with that little a load. The rule is kinda like half of rated towing capacity, or about 4000 lbs towing with a 5.3l. Or whenever you want to use it. It changes the shift firmness and points. Doesn't change how the transmission runs at 70 mph at all. I have put 40,000 miles on a 99 and 2000 Ext Cab 4x4 5.3l, never seen any warning lights, except, change engine oil indicator, and low washer fluid. I have towed loads around 10,000 for 50 miles, 55 mph no problem. Have also towed 13,000 at 30 mph many times. Towed even heavier loads at low speed. This is more prone to running into a problem and never seen it.
Good luck to you, You may have to change dealers
Hunter
500lb load should not even be NOTICED, let alone call for "tow/haul" mode. That mechanic is an idiot.
Hans
Stan
Just purchased my new 2001 2 WD 1500 LS extended cab with 4.8L, Auto Trans and locking 3.73 differential. I have faithfully read these and other posts over the last 3 months prior to buying my new truck. There were several exchanges dealing with
Silverado "Sag". Thinking I would avoid problems up front, I checked my truck out before taking
ownership and found it to sit half an inch higher on the right. I was prepared to kill
the deal, but after measuring the other 15 similar trucks sitting on the lot, I found
90% of them to be off > half an inch also. In fact there were 2 with > one inch of
difference. Most of the trucks were higher on the right but not always. So I
purchased the truck anyway and had my concerns/findings written up in order to
make sure it was covered in the warranty.
My question is: Does this problem correct over time? and if so, how many miles
should I wait before having the dealer correct the problem? What type of corrections
have worked and not worked? The dealer's suspension guy looked mine over before I
bought it and said he would place a stiffer coil spring on the front driver's side if he
were to fix it now.
64roadster
Out of curiosity, have you ever measured the difference between left and right on any of your cars? Just wondering cause in my opinion, 1/2" is not a big deal. For now, I would let the truck break in and from time to time check on the difference after you've carried loads or towed or whatever you bought the truck to do. BTW, keep the initial measurements just in case you do have a case of the sagging springs.
Now for the unlevel truck, you'd be hard-pressed to find a vehicle that sits perfectly level, new or used. I agree with obyone, get some miles on it, and if the measurements change alot, then have it checked.
The prices i have gotten for a 5/100 with zero deductible have ranged from $2150 to $3275. I have no idea why i get such range of prices for buying the same warranty (all the dealers claim that the price they quotes me was their cost). But, i have also been told that if i would have purchased the warranty at the time i bought the truck it would have been significantly lower cost on the warranty. I would say that if you are going to keep the truck and want to get the warranty, get it now. I think i am going to go with 1source cause the same warranty is only $1200. I would have more faith in the GM warranty, but not for an extra $1000.
again, not saying if it's the reason for the hp/torque increase or not, just that i heard the same thing.
bco
Other than this incident and the hard to close doors when cold, which I am having fixed thanks to the great posts on this message board, I have loved this truck. Having a couple hick-ups with a truck this complex does not surprise me. Its been a pleasure to drive.
Let me put it another way. Under full throttle, does the truck vibrate at 28 mph? or 35mph?
On oil filters....Bought a Wix 51522 today. The counter man said it crosses with an AC PF59.
Thanks!
Did they replace the whole drive shaft? You said "front" drive shaft. Does that mean the forward part of your shaft?
I believe there is a TSB to replace the entire 2 piece shaft with a 1 piece shaft (Obyone can confirm this). It requires some work by the dealer. If you still have a 2 piece shaft, and there is a TSB to replace the entire shaft, make them do it. Until you get that fixed or eliminated, you may be missing a major source of your problem.
By-the-way.....what kind of rims and tires do you have?
John
What's this "subscribe to this discussion by email" thing edmunds has? Has anyong tried that? What's that all about?
John
they replaced the forward driveshaft only. I asked the service mgr. about any service bulletins to convert to a single shaft he said it wasn't necessary. The wheels are steel (chromed) and the tires are Goodyear Wrangler 235/75R 16. A while back they replaced one of the tires because it failed a load force balance job. One dealer claimed I had a bent wheel another said they were OK. Something to remember; the vibration comes and goes and it's worse after removing a 500 pound load from the bed.
I just looked at mine. No leaks. I did notice that the paint on the diff cover is coming off in sheets.
tit2
Can you explain why the paint is coming of my diff cover?
Scott