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Chevrolet Avalanche Care and Maintenance

76 messages,  Last post on Oct 02, 2008 at 9:48 AM

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#47 of 76 Break-in oil by metalgear Feb 05, 2002 (3:24 pm)
Does anybody know if chevy uses a special break-in oil? This was the case with my VW VR6 GTI. VW said to go the full 5000 miles for the first oil change. I'm from the old school of building motors and getting that oil out ASAP along with any build residue,metal shavings etc.,also any opinions on how many miles before switching to synthetic oil?
#48 of 76 oil by ygmn Feb 06, 2002 (7:15 am)
I do not think they use a special oil as I have not read anything about it in the manual.   I changed mine at 3k.
#49 of 76 Washing the cladding by whitevette01 Feb 19, 2002 (1:56 pm)
Read through some of the post. I may have missed it but didn't see any discussion on washing the stuff.   Just washed the truck for first time since took delivery in Oct. A light mist fell this morning so was not a heavy coating of road film.   With a sponge and car wash it was hard to clean. Is this 303 item people are talking about a wash or wax. Is the cladding designed to be cleaned with a stiff brush. The would give reason for smooth cladding.
#50 of 76 303 by ygmn Feb 21, 2002 (2:21 pm)
303 is a protectant.   I use wash soap and a wash brush like some use on their paint for the cladding and have had no problems cleaning.
#51 of 76 PCV LOCATION by slayer69 Mar 30, 2002 (10:19 am)
WHERE IS THE PCV LOCATED ON THE AV????????
#52 of 76 re to slayer 69 on pvc by johnnycat8 May 23, 2002 (10:41 pm)
its located on the drivers valve cover in the rear if your having the oil smoke problem ask your chevy parts department for the restricted pvc valve they may have to ask the service department for the part number tell them their is a service bulliten out on this problem it works i have two avalanches and have had to do this to both..
#53 of 76 Wheel Balance/Rotation Question by houstonguy Jul 10, 2002 (2:13 pm)
Earliers posts implied that after 7500 dealer would perform tire rotation and wheel balance at no cost...is this correct? If there is a cost, what is it? Thanks!
#54 of 76 transfer case by belljo Aug 18, 2002 (9:38 am)
Anyone know how often the transfer case fluid should be replaced? I hear every 30K, but can not find anything in the chevy manual.
#55 of 76 Lousy Gas Mileage by GSB Feb 07, 2003 (7:31 am)
Bought my 02 AV in August 02 (4WD 3.73 rear). Best mileage to date is 16.6 mpg all highway (70-75 mph)for 300 miles. Most driving is mixed city/highway and averages 12.0 to 13.0 mpg which is way below the 15 mpg I expected for this type of driving. EPA rating is 13/17.   I have towed a 4000 lb trailer and got about 12.5 mpg which I consider reasonable. However, the last three tanks of gas I have averaged about 10 mpg which I consider lousy. These tanks included a mix of city/highway with occasional auto 4WD selected (10-20% of driving time). Recent outside temps 25F to 35F.   I'm looking for reasons for the low mileage. My AV is running smooth. No misses noted with good all around driveability. Could the front hubs be locked? What about an emissions controls system problem? Cold temps? Any ideas why my mileage is so lousy?
#56 of 76 Smoking Av by loyalfan1 Feb 24, 2003 (5:45 pm)
My Av is smoking upon start-up occasionally and I have read messages on this board about a Chevy service bulletin for this problem and replacement of pvc valve as the cure. My dealer claims to have no knowledge of this bulletin and said if I could provide him with it they would honor it. Can anyone tell me where I might find this bulletin? Thanks.

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