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I changed my spark plugs few weeks ago and if you follow Tblazed instructions you will be fine. Also I would suggest using 10"of length 3/8" rubber hose to get the spark plugs in or out. Check the gap .05" of each new spark plug and the old spark plugs for any unusual discoloration.
Apply the anti-seized compound on the upper thread of the spark plug – be careful do not get any on the ignition tip.
Walk4
My understanding is the average fuel economy meter is simply a value of total miles driven divided by fuel used since the last reset. It does not make sense that it needs to be reset after each fill up to work correctly.
I just returned from a 1000 mile round trip where my meter read 18 before I started, 22 after driving 450 highway miles, dropped to 17.5 after 50 city miles, and went back up to 22.3 after a 500 mile highway return trip. This fluctuation is way to much for a vehicle with 82,000 miles on the odometer.
Do you or anyone else have any insight for me?
Stephen
Does anybody know if there are ANY changes to the '06 Trailblazer
from the '05's ?
What realistically are you getting for gas mileage ?
Would you buy another Trailblazer knowing what you know now ?
Thanks for any info you can share .. We are thinking about getting
one for my wife ...
The Envoy's get stabilitrack- electronic stability control - not sure about the TB's. Possibly not.
This is all hard to explain but perhaps someone else out there has experienced something similar? So far two oxygen sensors have been replaced and the PCM was updated, all about 4 months ago. I think my gas mileage has suffered through all of this but am still watching that. Oh - yesterday my low fuel light came on at only 15 gals used; normally it comes on at abou 18 gallons used. MPG with that fillup was 14.8 with a mix of city and highway driving. Thanks for any help!
I do know that the Range (miles left before running out of gas) is figured based on the fuel economy over "recent" driving conditions.
The owner's manual is not specific on either of the above. :P
Fact of the matter for me is "Who Cares" I reset trip "A" to 0 with each refill and always refill before accummulating 400 miles. I figure my EXT avgs around 18 mpg in mixed 60/40 HW to City. I rarely push it.
Talk about practical torque. I just returned from a couple of days in the Allegany National Forest in NW Penn. I had a trailer with 2 ATV's (approx 2000#'s) pulling up grades up to 8%. Never ran out of power. Was able to achieve any desired speed with engine never exceeding 3500 rpm and temp never exceeding 210.
Now I probably only got 14 mpg but even that was not bad.
About 20 MPG on the highway, which is what i normally drive.
http://www.aero-turbine.com/seehear/seehear.html
That's great! Although I suspect your right foot is a lot lighter than mine!
Here’s the weird part: For the first hundred miles or so after the SES light came on, the Cruise Control was inoperative. I cycled its on/off switch, held the button down, made sure the brake pedal was all the way up—nothing worked. The cruise had never even hiccupped before. After a hundred miles or so, the cruise control came back to life, with the SES light extinguishing an hour or so later.
Subsequent checks of the cruise had it operating every time.
Soooooooooo, are the SES/Cruise dropout related?
Thanks,
Kurt
Although, if you think about it- it wouldn't be a bad idea to disable the cruise when the engine sensed something was wrong. So, perhaps my ghost theory is wrong... but I'm sticking to it.
That’s what I was thinking at the time—and still do. Doesn’t make sense, letting the cruise control push you around in ignorant bliss while the motor may be going south. Anybody have the poop on this? Would the PCM take out the CC for a while after seeing a P0105 and turning on the SES light?
On another note, how’s this for mileage? This is after ~200 freeway miles at night, AC compressor off, cruise set at 65. It includes going over the Grapevine @ 4,200’ too. Check out the gas gauge. Shows over 2/3 tank. I live in the hills, and am usually looking to fill up @ 200 miles when driving around locally with my crummy in-town mileage and (early 2002) 18 gallon tank .
BTW: Averave mileage for that 1,100 mile road trip was a little over 20 MPG. That included TONS of driving in 2nd gear (sometimes even first gear) on some high altitude, nasty, steep Sierra back roads.
Edit: The recently-installed new style fan clutch worked PERFECTLY, and solved all the problems I was having--including the dreaded slow AC cooldown on a HOT day problem.
Kurt
<img src="HTTP://users.adelphia.net/~kstutzman/images/MPG.jpg"
I picked up a White 2002 Envoy SLT yesterday! I had been doing a lot of research and yes, I got thru all 17,000+ posts in this thread! It still didn't deter me on my purchase but made me a better buyer! I found one with low mileage and an April 2002 build. The only options this one doesn't have is the air ride and sunroof. I sit pretty tall in the saddle and the headliner is just too low with the Sroof( and seat as low as it goes....).
I got the service records for this truck as the dealership( Stampede Pontiac) had sold it new to the original owner and he traded it in a couple of weeks ago.....guess he has nothing but money, as this truck only has 29,000kms( 18, 000 miles)! In service date is 31 Oct 02 so still have a couple of months of warrenty left too! I traded a 1996 Yukon LT.......
The records show the usual come-backs such as the transfer case select switch, problematic rear wiper( finally replaced), tailamp TSB, front links done on control arm, and a couple of PCM/ECM reprograms. No sign of the early teething/infant mortality problems you guys talk about in the 01 built versions but even these late 02's have little gotya's........
Pleased so far.....
A question, if I may...? Did these trucks come with any literature from the factory for the DVD entertainment system? There is nothing in the owner's manual and just a supplemental onstar package and warrenty guide was all that was in the pouch besides the OM....I did get the 2 headphones and remote........
I can't help but think there must be a guide as we ARE dealing with the general public here Does anyone have one? I sure would like to see a copy......
Off to play with my DIC........ :P
Greg
No better 4WD solution on the planet for someone forced to make a living in the City that I'm aware of.... (If I'm heavy footed, it'll drop to 20... technique is everything..).
- WPK
- WPK
Wanna hear something funny? After taking the picture showing 24.6 MPG, I drove another ~100 miles up the valley, and the MPG rose to 25.0, so I took another picture. I didn’t post it because I thought nobody would believe me LOL!
I love the freeway mileage this thing gets, but the stop-and-go, around town mileage here in the hills east of LA is ~12-14--which stinks! Still, this is a good all around SUV.
BTW: The Trailblazer is used mostly for trips and towing the boat. A Honda Accord does most of the city driving.
Kurt
Tell us you've checked it yourself, and I'll believe you.
Thanks.
FWIW- humid air is actually lighter (less dense) than dry air. I know it doesn't feel that way to humans, but it's true. :shades:
After wading thru 17,000+ posts and from what I have seen on other forums, I am quite sure, now, the theory is true that only the people with problems, issues and axes to grind post in large numbers .........I would guess it approaches 80+% of posts in most threads........
Seems like the conversation on this envoy/trailblazer thread has all but dried up because there are no or very few problems left.........and the few questions that do pop up are not enough to spark any posting.........
I am a happy 2002 envoy SLT owner( so far....) and I found the answer to my question from my inaugral(sp!) post(#17249).......The DVD rear entertainment system info apparently never made it to the 2002 envoy manual......I did find the info in a PDF of the 2003 manual on the myGM website.
I may have a few more questions or observations about this truck in the future...hope they are worthy or............. flammable....... or something.......;)
reguarding the fuel economy thread:
I did trade a 1996 Yukon for this truck. I guess a few more MPG and 200,000 less Kilometers on the clock was my over-riding reason and also all the toys!!!!!!
Gas prices here in Calgary are C$1.15 per litre.--about US$3.70/us gallon( I'll show my work if you need to see the conversion :P
And we in Alberta produce most of the oil in Canada!
Greg
It's a holiday weekend (Labor Day) in the states so expect it to be a little quieter on the boards than usual!
tidester, host
Anyhow, there is a place in Alberta, Tilley I think, where Wester's Garage is located. Wester produces a PCM tune for the 4.2L I-6 now, and says that an increase of 4 to 5 mpg is possible.
http://westers_garage.eidnet.org/Index2.htm
It was a long weekend here too. labour day.......still doesn't make up all the reasons there are so few post in the last few months......
Most of our stat holidays are the same day as yours....some for different reasons and some, really different, like Thanksgiving, at the end of harvest....mid Oct.
We didn't go anywhere so ENVOY! stayed in Garage.
Yes, all the oil in the world is just north of you! Just bring your checkbook! No shots required........
Seriously, yes, the official reserves have now been pegged at more than anywhere else except for Saudi Arabia. Unoffically, they think there is more oil here than all the rest of the world combined! Most is locked up in the Tar Sands north of Edmonton. Present extraction capacity is at over 1 million barrels a day and growing everyday.......Most of the natural gas you use also comes from Alberta!
Most people in the US are surprised when they find out about the oil and gas and the fact that 300 miles north of barren Montana lays a city of over 1 million people( Calgary) and 200 miles north of there is another city of a million people( Edmonton). Population of Alberta is over 3 million.
Still paying high gas prices to fill the ENVOY but that is an international problem with the free market for oil. Just because we have lots of oil, we pay the same as everyone else. WE do benefit in other ways by low taxes, no provincial sales tax, booming economy, etc.....
Greg
Sorry for the unrelated political comment, but I just could not resist!
tidester, host
Anyway, my parking brake seems to need adjustment. The dealer tells us that there is no adjustment on the TB and when the brake no longer holds it's time for new shoes which they will install for a mere $370. Seems a little excessive to me and furthermore, I don't think parking brake shoes "wear out" but cables do stretch.
Anyone out there know if there is an adjustment on the TB? Don't see one on the underside cables and there are no inspection holes on the rear drum part of the rear discs. Thanks in advance for input.
"This process enables the auto adjuster.":
1. Lower the park brake lever.
2. Raise the park brake lever.
3. Lift the park brake lever boot to gain access to the multiplier lever at the front of the park brake lever assembly.
4. Pivot the multiplier lever up and down 3 times.
5. Cycle the park brake lever up and down 3 time for the auto adjustment.
6. Lower the park brake lever boot.
Good luck and let us know if it works.