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Chevrolet Avalanche Problems & Solutions
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Comments
Some more expensive car like Lexus have a warning chime that goes off if the traction control system engages (ie cornering on the snow). AV's dont' have that...yet.
Room - There is plenty of it.
Car Seats - I don’t believe the truck has the third attachment point behind the seat yet.
DVD/VCR - Optional in 2003; you'll have to go with an aftermarket system for 2002 (easy to install).
Leakage - Problems exist with any vehicle. The later models of the AV seem to have fewer problems. Nothing major has shown a trend yet. The one leak I had was fixed. Chevy is standing behind this truck.
Plastic noise - If it's the front window, they didn't install the bug deflector properly.
Plastic fading - Haven’t heard about this. Cladding is going to be optional in 2003/4.
BTW, does anyone know where to get the 3 rigid truck bed cover? mine came with the soft top.
thanks
You can buy the hard covers and latching rails (need them too if you’re converting from a softwcover) at any dealer. I’ve also seen them on online auctions sites from time-to-time (normal cautions apply hear). Be prepared, they aren’t cheap.
Enjoy your AV!
DId you get your Av fixed and what was done? You're right that it is not a new problem. It seems to only happen to older trucks. Any one out there get a new one that burns oil?
I've seen three fixes for the smoking avalanche. In most cases, replacing the PCV fixes the problem. If that doesn't work, replacing the lifters DOES fix the problem. I know of engine replacements that worked, but they worked because replacing the engine replaces those two parts. I don't want a dealer tearing out my engine for an oil consumption problem. I would rather burn oil.
I still really like the vehicle Hope they fix it !
I would be really disappointed to have to go thru a lawsuit to get it right. It's really a fine machine......but CHEVY ......let's get this stuff out with fewer problems like this.
Dealer service told me it was normal. They test drove a new AV off their lot and said it made the same skidding noise, so no problem. I assert the ABS should prevent this situation if it is working properly.
Has anyone else noticed the rear wheels skidding on heavy or moderate breaking?
What's New For 2003
A whole lot of changes are coming for the 2003 Avalanche. The entire Chevrolet truck line up is getting a major interior facelift. The Silverado will get an Avalanche front clip and the Avalanche gets an exterior make over with darker cladding (pictured to the right). Here is what's new and what's gone in 2003.
1500 Series - What's Gone
Front passenger side airbags (now part of an option package)
HD Trailering Equipment includes Class III trailering hitch platform and 7-pin wiring connector/housing (now optional)
Deep tinted midgate glass (now part of an option package)
Indigo Blue paint
Forest Green paint
Medium gray lower cladding, front bumper and rear bumper covers (color change)
1500 Series - What's Been Added Standard
Dark charcoal body-side cladding (medium gray deleted)
Body color power folding heated power mirrors
Driver information center with trip computer and message center
Manual dual-zone climate control
Dark Green Metallic is a new color for 2003
Dark Gray Metallic is a new color for 2003 and matches the cladding
Arrival Blue Metallic is a new color for 2003
All new interior for 2003
1500 Series - What's Been Changed
Optional Z-66 package now adds deep tinted midgate glass
Optional Z-71 package now adds deep tinted midgate glass
Optional North Face Edition package now adds deep tinted midgate glass and engine block heater
Optional front high-back reclining heated bucket seats now adds power adjustable pedals, rear seat audio controls and will be available with cloth or full leather
Optional front high-back reclining bucket seats now adds power adjustable pedals, rear seat audio controls and will be available with cloth, sport leather or full leather
Optional Driver's Convenience Package gets a face lift with auto dual-zone climate control, HomeLink universal garage door opener, power adjustable pedals, steering wheel mounted radio controls, power mirrors with integrated turn signals, ground illumination, and curb tilt - OnStar has been deleted and is now part of the Personal Security Package
1500 Series - New Options and Packages
AM/FM Stereo with 6-disc compact disc changer and Bose 8 speaker sound system
Personal Security Package with front side-impact air bags, OnStar Safe & Sound service, and steering wheel mounted radio controls
XM Satellite Digital Sound System
HD Trailering Equipment package with Class III trailering hitch platform and 7-pin wiring connector/housing
Rear Seat Entertainment System with DVD player, remote control, wireless headphones for rear passengers, auxiliary A/V jacks (not available in combination with power sunroof)
Chrome tubular assist steps (4-WD only)
2500 Series
Although the North Face, Z-66 and Z-71 packages are not available on the 2500 series, all other option changes carry over the beefier Avalanche.
Other Information
The engine and transmission lineup remains the same in 2003. Horsepower and torque numbers also remain the same. The automatic transfer case is suppose to be improved and will offer slightly better gas mileage over the 2002 model. No information is available on interior colors but the headliner is now listed as being "slate" instead of "neutral" in color. There is a strong rumor that the North Face Edition interior will no longer be green with orange trim, but this is not confirmed. New pricing is not available at this time.
Ordering A 2003 Avalanche
Chevrolet dealers are accepting orders for 2003 Avalanches at this time although dealers do not have pricing available. Lead time is running eight to ten weeks with first delivery estimated on August 5, 2003.
thanks for all the postings it really helps to deal with service advisors who claim they never heard of such problems with av's in there experience. HUH !!! Don't believe it !! There are to damn many of these av's blowing smoke to not have heard of it. And it's amazing after showing these people the copies of the postings that all of a sudden my av is fixed....He he he !!
Read many post on the avalanche leaking even before I bought one. I now own one anyway. I have discovered something about the midgate that MAY be a solution to fixing many of the leaks encountered on the avalanche. When I first got the truck I checked for any wetness of signs of any leaks and found none. I drove the truck for a few weeks before actually converting it due to busy scedule. Before I converted it I inspected everything....every joint the midgate made with the surrounding seals, the window etc. Everything was nice and tight, and the window and the midgate bar had no play at all. I took the truck to the drive in and while there converted it so that we could hear the radio better out the back. I converted it back in the dark and all SEEMED to go well. The next day however I inspected the midgate and all the seals. There were small gaps around the edge of the window/midgate bar on the out side....I though "well shucks...looks like water could get in there!" I proceeded to check all the things I checked the day prior. I opened it back up and then closed it up again. Guess what, still had gaps. I looked closely at the gaps, and the 2 at the back window would leak water into the cab if water were to hit them. I followed the trail and the water would seep into the back down the "sides of the midgate" and wet the carpet and floor. Now I thought this odd....why were they sealed fine from the factory but after I converted it, there were gaps that were potential leaks? I figured it must be something I was doing wrong. Well guess what, it was.
My inspection prior to opening the midgate had tight seals and the midgate bar and midgate had no play, nice and tight as I mentioned. After my twilight conversion and even several other conversions while inspecting and following leak trails, I discoverd this. When I closed the midgate, and put the back window back in, I noticed the back window now had some play in it, it was not tight. I'll bet it would even rattle while driving. I also noticed that the midgate bar also had some play in it. It was tight before. I assumed that maybe the latches came out of adjustment and this left the midgate and back window "loose". Well being the optimist I am, I figured that it could not have just "popped out" of adjustment so I took the old fassioned approach....I opened the midgate, then I slammed it shut harder than I had been doing in previous closings. Guess what? The midgate bar no longer had any play, same with the window...tighter than...well you know......it was tight! The gaps on the outside at the bottom of the rear window were gone....and it passed the water test.
So folks, before having the dealer replace seals or adjusting anything(which since they do not have experience doing it much can make your problem worst) check the seals and the midgate bar and midgate for "play" and check for gaps around the seals on the outside of the back window, then slam that darn midgate a good one (don't slam it into next week, but don't be a wuss about it either) and then re-check. The midgate bar and midgate should not move when you tug on it. This may indeed fix you leak problem.
Hope this helps.
Mark
Thanks for responding.....all is well.
Like Mark, I fiddled around with the bar, the window, and the lift gate. I parked it downhill and had my wife spray the back window with a garden hose. Sure enough, in came the water on the passenger side of the rear window and dribbled down onto the carpet. No leaks, however, around the lift gate. Since I've never removed the rear window in the year I've owned it, I got out the clear silicone caulk and caulked the rear window tight like an aquarium. No more leaks and I can still lower the lift gate for carrying sheets of plywood.
So, take it to the dealer if you dare, and if all else fails, before the carpet rots, and the floor rusts through, seal that window shut.
Oh yeah, I also had the tailgate fall open on the road giving me a few more gray hairs. The posters are right, you've really got to slam that tailgate a good one applying pressure on one side or the other.
One thing I haven't seen posted yet is about the air conditioning. Both me and a friend had our air conditioning stop working in our 2002's after about a year because of a leaking valve. If your air conditioning seems like it's not as good as it used to be, have it checked before it stops altogether.
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?
Check around for other forums...lots of people have posted about this problem...they have CHEVY ... trucks .... AVALANCHE ..... specifically .... FAN CLUB ... most are located in NORTH AMERICA ....
WINK WINK......
Will have to wet vac and dry out the cab but there is no way to get down into the slot and technician at the dealership had no clue as the gas tank blocks access from the bottom.
Wet weather climates beware. At least I can count on several months of sunshine to dry out the interior. I would caution every owner to inspect under the grate for debris
Here are some of the reasons for your mileage:
Huge vehicle size, high curb weight, huge engine, extra weight of the 4WD components, low rear end gear ratio, automatic transmission, and shoebox aerodynamics. Normal laws of pysics at work.
If you want good fuel economy get a VW Jetta Wagon with a manual transmission and turbodiesel engine. It gets about 44 MPG in town and 50 MPG on the highway. You may not keep up with the Joneses with this car but you get good fuel economy (for a lot less money I might add).
If your hubs were locked all the time, this would certainly have a big negative impact on fuel economy. I would also try different brands of fuel. I have found that not all gasoline formulations work the same in all engines. Some of my vehicles run the best and get best mileage on Chevron gas, for example.
I am surprised that more people who must have a huge vehicle for whatever reason, are not looking at Silverado 1500 HD crew cab pickup as a practical alternative to Avalanche. It is cheaper, has four real doors and has even more heavy duty powertrain than Avalanche (6.0 liter engine and heavy duty 4 speed transmission with the tow package). It also has better quality cloth seats than Avalanche. I could not believe the lousy quality of the Avalanche seat cloth. At $ 38K, this vehicle's seats looked like those of an entry level Hyunday car. And I believe fuel economy of the 1500 HD truck is comparable to that of Avalanche (lousy either way).
Enjoy!
I purchased a 2003 AV in November 02 and it has been in the shop four times due to the steering wheel vibrating & shuttering and low speeds, usually in a parking type situation where you turn hard. On two occasions they found nothing, they changed gears the second time and just a couple of weeks ago Chevy called and advised they had "a fix".They ended up changing more steering gears and draining the system but it still has the same annoying vibration.
Does anyone have the same problems on hard turns at very slow speed????????? Chevy cant seem to figure it out.
I would appreciate any info.
thanks
Did you switch stations lately?
I use to fill up at a Sunoco(15-16) MPG, they use 10% Ethanol with there regular 87, I switched to MOBIL my MPG went from 15-16 to 19MPG 50/50 highway/city, 100% Highway got 23 MPG!!
STAY AWAY FROM STATIONS THAT BLEND WITH 10%ETHANOL, IT KILLS YOUR MPG!!! They do not tell you that!
I own 2003 Trailblazer LS 4X4 FYI
I thought I should tell you guys!
Rust fro luggage rack is also a TSB about when dealer installs they leave drill shavings on roof and they rust...so no they hgave to claybar and clean up....