Ask the Car People.SM


Buick Rainier, Chevy TrailBlazer, GMC Envoy

18329 messages,  Last post on Apr 30, 2012 at 8:10 PM

You are in the Buick Rainier Forum.

What is this discussion about? Chevrolet TrailBlazer, GMC Envoy, Buick Rainier, GMC Envoy XL, Isuzu Ascender, Oldsmobile Bravada, SUV

Messages Page 1188 of 1833

#11871 of 18329 Re:AC QUESTION by nuyorkah

Jun 23, 2003 (3:23 pm)

"can anyone tell if there is any bulletin on ac that blows ice cubes most of the time and warm only once in a while. any info will be helpfull thanks"
 
Air Conditioning (A/C) Inoperative/Intermittent, A/C Blows Warm Air (Replace A/C Low Pressure Cycling Switch) #03-01-39-007 - 05/29/2003)
 
2002-2003 Chevrolet TrailBlazer, TrailBlazer EXT
2002-2003 GMC Envoy, Envoy XL
2002-2003 Oldsmobile Bravada
 
Condition:
Some customers may comment that the A/C system is intermittently inoperative or blows warm air.
 
Cause:
An intermittent inoperative (open) A/C low pressure cycling switch may be the cause. This is an intermittent condition and temperatures may play a critical role if the vehicle is in the failed mode or operating as designed.
 
Correction:
Make a service appointment
 
OR
 
HVAC System Inoperative for a Drive Cycle, Poor HVAC System Performance in High Ambient Temperatures (Update HVAC Control Module Software) #02-01-39-005 - (09/23/2002)
 
2002-2003 Chevrolet TrailBlazer, TrailBlazer EXT
2002-2003 GMC Envoy, Envoy XL
2002-2003 Oldsmobile Bravada
 
Condition:
Some customers may comment about no cold air from the heating, ventilation and air conditioning (HVAC) system during a drive cycle. This concern may occur at any time during the drive cycle and at any temperature setting. The HVAC system operation returns to normal after the vehicle has been keyed to off and restarted. This concern is intermittent and most likely to occur on hot days. This concern may be found on vehicles equipped with manual (CJ2) and automatic (CJ3) HVAC systems. Other customers may comment about poor HVAC system performance in high ambient temperature conditions. This concern may be present in automatic (CJ2) HVAC systems only. An HVAC control module software update was put into all production vehicles beginning in September 2002. Vehicles built in September 2002 and earlier may need this software update.
 
Correction:
Make a service appointment

#11872 of 18329 GOT MY BABY by richlavoie

Jun 23, 2003 (3:47 pm)

Finally picked up my Trailblazer 2003 on last Thursday. Before I begin, let me tell you that I am a real winner and will never hesitate in reporting a problem. In fact, I will be fast on this board if anything comes up.
 
The experience at the dealership wasn't an easy one. We had agreed on the price, but their mechanics are on lock out. The car was poorly prepared. Tires unballanced, alignment off, engine light and 4x4 light came up. In any case, it was all fixed easilly. Engine light was caused by the fuel cap.
 
I don't know why car salesman need to lie, even if the truth is not that bad? It seams that telling the truth scares them, even if that truth is quite fine. I have received the 3.42 although I had asked for the 3.71 axle rating. But I asked for the 3.71 after i had ordered the car, and I was too late making the change. But instead of giving me that story, the salesman tried to convince me that 3.42 was so much better and could even tow more then 3.71. I had to tell him no to even try.
 
They were also very surprised when I toom by air thingy out to check the tire pressure, which was at 37 and 38 PSI when it should be at 32. They were also surprised when I checked the trailer wiring 9which was fine). Lovely when you hold the knowledge (thanks to this board).
 
What do I like I (remember that I had a one week rental on a 4runner, a explorer and a Grand Cherokee in the past 2 months)
 
Great ride. If you don't like the ride, you don't want a truck but a minivan or a CUTE-UV. This ride is outstanding for a truck. Beautiful vehicle. The seats are very comfortable (unless you use to drive a BMW). The inside finish is excellent (except for a few exceptions). Lights come on and off by themself. Power remains on for 20 minutes inside after you turn off the engine. Very quiet (those ventvisor do a great job). Engine is very quiet and very powerful 9no problem with my 3000 lbs trailer). Doors lock and unlock properly when you start and put on park. Sound system is fine on the LS for the price. Rear and front wipers work excellent (up to now...). No vibration on the gaz pedal (but it isn't cold yet...). Gaz mileage is better then expected. It cost me only $10 more for a 600km drive (about 420 miles, and about $7.20 US). Not bad for a truck this powerful. This is not an off road vehicle like the Jeep or the Toyota, but it is much more comfortable on the road. It is powerfull, but will not take a Civic at a red light. Its power is constant (I guess they call it torque...).
 
What I would suggest GM improves for next time:
 
Don't start on a new vehicle, but improve the TB like Nissan has done on the pathfinder, which is now a perfect vehicle (hope they don't Ford it up with their new model). Add the little things that you expect in a vehicle of this price. Look at Toyota and the new Sienna which has all the goodies of other minivans (and I mean all). The difference between low end and high end should be limited to leather seats, navigation system, rearward drive assist (cameras), automatic ac and heat, etc... things like compass, outside temperature, leather steering wheel should be included. Pls remove some functions from the flasher stick. G that thing is busy. Hope it doesn't break...
 
But wow, I love this vehicle. GM has a real winner if they can make it reliable. Can't wait to take my trailer out.
 
BTW, there is a special letter gone to Canadian customers for the engine on the 2002. GM is taking responsibility for the engine break up up to 160 000 Km (100 000 miles).

#11873 of 18329 Congrat's richlavoie & Ohhhh Noooo..... by iexplore2000

Jun 23, 2003 (6:22 pm)

Congrats on your new baby Rich... Best of luck to you.. Hopefully she will give you many miles of trouble-free driving!
 
Also.. my first UH-OH's! Well.. this past weekend I experienced my first set of problems at 1600K on the odometer.
 
1st.. My steering wheel control volume control button has begun to intermittently fail. It will sometimes work ONLY when it wants and at other times, it will not work at all. Very odd indeed considering that the other buttons on the steering wheel will work?? After letting the vehicle sit for a few minutes and then restarting, the problem seems to go away? Anyone else experience this?
 
2nd... Wandering mirror trouble again? My driver's side mirror has started to do some very odd things.. I have the "curb view" feature activated on both mirrors because I wanted to make sure that I did not experience any issues with repositioning like I had in my 2002 Envoy. For starters, once I shifter into reverse and the mirror tilted UPWARDS towards the sky, then when shifting back into drive, the mirror went back to it's original position? I was a little spooked by this.. To correct the problem, I fine tuned the mirror while in reverse and so far it's held the correct position. Additionally, I've noticed on several occasions that the driver's side mirror would be off by a hair when returning to it's original position, so once again I would fine tune and hold down my memory #1 button. Does anyone know if GM has done any additional fine tuning to correct this problem? My vehicle was manufactured in March 2003, therefore I know that it's pretty current in terms of past-posted software calibrations and mirror actuators.
 
3rd... Hmmm.. sometimes I notice that when I go over 70 mph, I get that awful steering wheel shake from the tires as if they are unbalanced? Some days are worse than others but today was by far the worst! I had both hands on the steering wheel and it felt like I was getting a arm massage? I have yet to check the wheels to see if maybe a weight had been thrown, but I will. I am guessing that maybe the wheels developed flat spots in them while sitting on the dealer's lot? I am kinda afraid to have the dealer rebalance the tires because they don't use the same weights from the factory, plus if they do what they did on my 2002 Grand Am GT, after they removed the original weight, there were severe visible scratches from where the original weights used to be. It was not appealing at all. Can I continue to drive the vehicle (if the weights are intact) and will the flat spots eventually become ROUND again? Ha, ha.
 
HELP!
 
Thanks!
 
IExplore2000

#11874 of 18329 Thanks nuyorkah by ltz2003

Jun 23, 2003 (6:52 pm)

I told the dealer it was that low pressure switch and they looked it up and said there is nothing on that. I can hardly wait to get there in the morning and show them the info. thank you very much

#11875 of 18329 Motion during start up by hambone7

Jun 23, 2003 (7:48 pm)

Sometimes when I start the engine my 2002 TB lurches forward as if someone pushed the whole vehicle from the back one time. The motion feels like the vehicle moves forward about 5 inches then it settles backwards.

#11876 of 18329 Rear end by aldan93

Jun 23, 2003 (9:42 pm)

I was amazed but I think this is the first vehicle to have an aluminum pumpkin/carrier, the axle stems/shafts are steel of course, but the carrier is aluminum? how in the heck is it welded together? is screwed on? LOL, the first AL/FE combo in history? Care to comment! This is the rear axle I'm talking about.

#11877 of 18329 rear end by scottc454

Jun 23, 2003 (11:09 pm)

That's not what the carrier is. A carrier is something that's inside the pumpkin. It's probably just the differential cover and/or housing that's aluminum. There should be 12 bolts holding the cover to the housing.
 
The cover can be anything, chrome plated steel, aluminum - it doesn't matter except that aluminum will dissipate heat better.

#11878 of 18329 re: Unattached wire by dlare

Jun 24, 2003 (3:20 am)

Regarding the "unattached" pin 4 wire under the hood...what does it connect to? And why would they not have connected it at the factory?
 
Dean

#11880 of 18329 A/C issues by tblazed

Jun 24, 2003 (11:36 am)

Watching this thing for over for a week now with a test light hooked up to the a/c compressor relay, it ALWAYS does exactly the same thing when it is really hot. I think the high-pressure sensor is cutting out the a/c when it exceeds a set pressure limit. Start up, cools down a little,, takes a break from cooling, blows warm tepid air in my face, then resumes cooling when the pressure drops. The hotter the air is across the evaporator in the afternoon the more likely it is to cut out the a/c compressor from the high pressure. Run the fan on 1 and it stays on longer or doesn't cut out at all. Run the fan on 5 and it cuts out almost immediately. This is NOT the same symptom as the a/c low pressure cycling switch intermittently sticking. Once it cools down enough to keep the high side pressure lower than the cut out point, the normal cycling takes place and it cools fine for the entire drive cycle and it really works quite well. I have also compared mine and a friend's TB that just had his serviced 3 weeks ago
 
This is a PCM programming issue the gurus at GM need to work on. I am afraid though it may be just the nature of the beast. The pressure WILL get high with +100 to 110°F air moving across the evaporator. Kick in the engine cooling fan duty to 100% before the pressure gets too high to move more air across the condenser coil would help keep the high side pressure lower, but then everyone would complain about fan roaring noise.

Messages Page 1188 of 1833

To POST a message, please Sign In.

Advertisement

Browse by Category

Browse by Vehicle
   View All Vehicles

Browse by Board
Browse by Topic
View All Topics

Edmunds Community

Advertisement