Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!

Buick Rainier, Chevy TrailBlazer, GMC Envoy



  • richlavoierichlavoie Posts: 56
    Thanks nuyorkah. I am assuming this is unique to GM. This connector doesn't look like a normal 7 wire connector (V shape at 5 O'Clock and a larger ground connector at 9 O'Clock.

    I am also assuming this is the receiver end (the part on the car)?
  • nuyorkahnuyorkah Posts: 100
    "Thanks nuyorkah."

    Your Welcome

    "I am assuming this is unique to GM. This connector doesn't look like a normal 7 wire connector (V shape at 5 O'Clock and a larger ground connector at 9 O'Clock."

    Never assume. But yes it is. The picture is the back of the connector where the factory wiring connects too. NOT what you see when looking into the connector.

    "I am also assuming this is the receiver end (the part on the car)?"

    Yes and answered above

    Your GM Dealer sells a 7 way Round to 4 way flat adapter if you need one.
  • ficussficuss Posts: 541
    and had one in the 80's 5000 series. They said it gave fuel economy of a 4 cyl. and power of a 6 cyl. Remember the car that had a propensity to rear-end other cars. Everyone blamed a stuck gas pedal. I think they ultimately figured out the car had more "go" power than stopping power, ie: weak brakes.

  • zueslewiszueslewis Posts: 2,353
    driver error, then people who owned Audis tried to get on the band wagon and collect as part of a class-action lawsuit.

    There was no fault ever proven against the manufacturer.

    It was 20 years ago - sounds more like something that would happen these days, huh?
  • ficussficuss Posts: 541
    I was in a foreign car body shop in the mid 80's and saw 5 or 6 Audi's with the exact same damage to the front ends. When I asked the shop owner to speculate on why each Audi had the exact same front end damage, his answer was the weak brake answer. So yes, it may have been driver error, but the weaker than prudent brakes contributed to the problem. Imagine if the Tripletts had Chevy Vega capacity brakes.
     After driving my TB for 16 k miles, I still feel the brake pedal is mushy compared to other cars. The TB stops ok, it just feels like the brakes are soft, especially in the morning when the car is warming up and the revs are a little high.
     Does anyone else share this opinion about the triplet brakes?

  • cebtebcebteb Posts: 138
    Over 4,000 miles on the odometer. Warmer weather and no oxygenated fuel (no alcohol added). Gas mileage on my daily commute has increased from 14.2 mpg to 15.2 mpg for the past 4 weeks. Still nothing to brag about.

    BTW DIC average mpg continues to match my computed (from trip miles driven and gallons purchased) mpg. I guess my Bravada has a better average mpg computation system than some others on this board. However, if you try to squeeze the last drop into your tank during a fill-up, the DIC mpg will read higher than actual.

    No problems to report after 7 months of ownership. Very secure feeling driving my Bravada at highway speed during spring rain and wind storms around metro-Denver. Can't wait to take the Bravada on a long summer vacation trip.+
  • cebtebcebteb Posts: 138
    I find the brakes on our '03 Bravada to be the best of any vehicle I've driven in the past 40 years, sports cars included. The linear relationship between braking power and foot pressure is what I like in brakes and the Bravada's braking seems linear from first touch to hard stomp. To me the Bravada's brakes make it feel like I have "mirco-control" of my braking. Hard stops on rain-soaked highways or snow/slush covered roads result in short, straight line stops with no skidding. I can't imagine what else I'd want from a braking system.
  • st1100v4st1100v4 Posts: 96
    My Bravada's brake pedal has a soft feel, compared to other cars I drive, especially the initial application. Braking itself works great.

    From my memory, the Audi 5000 issue had nothing to do with brakes (except that people claimed they were "stomping as hard as I could" on the brakes and the car still wouldn't stop); it was all about "unintended acceleration." This UA occurred at startup. As stated above, this was determined to be operator error, perhaps exacerbated by pedal position. The people were applying the accelerator when they thought they were on the brake.
  • ficussficuss Posts: 541
    cebteb: that is just what I don't like about the brakes. There doesn't appear to be much power assist to the brakes. If you have to push much harder to apply harder braking, you don't have power assist. The whole idea behind power assist is that it assists. Your foot applies a little force and the brake system assists you with added force. Linear braking is what cars used to have before power brakes. Back then, the harder you pushed the brake pedal the faster you stopped. Just like I said, they just don't feel right.

    st1100y4: which brings us to my point, which is stronger, the brake system or the engine? Which time (distance) is shorter, 0 to 60 or 60 to 0. At startup, cars will typically idle much faster than when warm. If the audi drivers pushed both the gas and the brakes at the same time because of pedal positioning causing the engine to rev even higher, should the car have stood still or accelerated? It may have been operator error, but the brakes should have held. Remember brake torquing you old cars. They would hold in place even if you were intentionally hitting the gas and brakes at the same time. ( You young readers, do not try this at home.)

  • tblazedtblazed Posts: 945
    I-5 "245 hp" haven't read any specs yet. Will be interesting what they do with the 4 and 5 cyl versions for trucks. And what RPM they spec the HP at. Lots they can do with cam tuning and timing, PCM programming etc.

    "5 cylinder engines are not new"... also Mercedes and Volvo have 5 bangers although I think only in Diesels.

    5 cyl "no longer inherently balanced " just the opposite as I recall. One of the supposed advantages of the inline 5 cyl configuration is its inherent balance without adding balancing shafts etc.

    "4.3L was a sawed off 350" Tell me about it. That's what I have in my '88 S-10. The year before they added a balance shaft to the 4.3. The 90° displacement btwn the cylinder banks configuration works great with 8 cylinders, but with 6 cylinders it wants to vibrate. A 60° placement works better with a V6.

    "braking seems linear from first touch to hard stomp" my sentiments exactly. GREAT brakes. Very predictable. Just glad I went out and learned what they feel like when the ABS kicks in before I was faced with an emergency.
  • m2icemanm2iceman Posts: 27
    Anyone know the part number for the fog lights? I have been looking for the part to see if I can replace them with brighter lights. I would like to add HID's if they are available for the fogs, I know they have them for the HB.
  • scottc454scottc454 Posts: 356
    They done gots balance shafts:

    5 cyl "no longer inherently balanced " just the opposite as I recall. One of the supposed advantages of the inline 5 cyl configuration is its inherent balance without adding balancing shafts etc
  • tblazedtblazed Posts: 945
    Hmm.. musta slept since then. Coulda sworn I read that referring to one of the other I-5 engines as to the advantages of 5 vs. 6 cyl etc. Thanks for posting the link! Sounds like a smaller engine with more internal moving parts to make it work right.
  • hillflahillfla Posts: 90
    I've recently noticed a couple of things about my 2003 Envoy - I'm looking for some advice if you have any to give.

    First: my parking brake handle seems really crooked. I had not had any reason to use it until last week. When I went to release it so I could drive off, all of my fingers that were curled around the handle got smashed because they were pinched between the handle and the side of the console (the area where the handle resides when it is down). Looking closer, I have noticed that the brake handle and shaft is totally crooked and is almost touching the side of the console. Does anyone else have this problem? I am going to take it to the dealer soon and have them look at it and hopefully straighten it out so I don't smash my fingers any more!

    Second: My drivers side door is way out of alignment - its difficult to open the door some days. And this past weekend when I went to open it it opened all the way and bounced against the stops and I happened to be looking at the hinge when it did this and I saw a big crack forming where the hinge is welded to the door! How in the heck did that happen and can it be fixed?

  • "GM next year will add DOD to V8 engine versions of the Chevrolet TrailBlazer, GMC Envoy and GMC Envoy XUV sport utility vehicles."
  • tblazedtblazed Posts: 945
    I guess GM thinks everyone's forgotten about the Cadillac V-8-6-4 from the early 80's. Hpoefully 20+ years later they finally figured out how to make it work.
  • funitsfunits Posts: 55
    My Envoy is back from the dealer and I found out that the "dark stuff" in my coolant expansion tank was dried coolant. They drained the system, removed the expansion tank, cleaned the expansion tank (tech indicated it took 45 minutes!), flushed out cooling system, and filled with new Dex Cool. All performed under warranty (would have cost $113). Service Manager could not tell me WHY this happened (but he seems to have seen it before). I would suggest everyone look at their expansion tanks and checking them out before the warranty expires.
  • jr45jr45 Posts: 45
    Sounds great on paper, but according to the article if will boost fuel efficiency by 8%. So that means if a vehicle gets 20 MPH on the highway without DOD, it gets 21.6 MPH with DOD? Makes you wonder whether it's worth the extra cost and headaches.
  • st1100v4st1100v4 Posts: 96
    If I remember correctly (remember this is eons ago!), what was surmised in some of the most severe cases (hundreds of feet of uncontrolled motion in some cases), was that the driver was pressing only the accelerator. Regardless of the driven wheels (normally the engine should stall before the brakes are overwhelmed), the non-driven wheels would definitely lock on full application of the brakes, and skid marks where never found. And yes I know about Quattro drive; many 5000s were FWD only.

    What some wanted to claim was that at a given moment in time the throttle opened wide on its own and simultaneously the brakes totally failed. This was never replicated in 100s of tests.
  • steverstever Posts: 52,572
    Manufacturing the Audi Scare (Manhattan Institute)

    Sudden Acceleration & Stuck Throttles (Mechanical Forensics Engineering Services)

    Steve, Host
  • scottc454scottc454 Posts: 356
    Just a point of clarity - if you've got tons of torque, the brakes don't win when you press both pedals. I haven't tested this on my Chevelle yet, though.

    And gee Steve, can we stick to topic? :^)
  • gam2gam2 Posts: 316
    Volvo is making gas I-5's for their cars. I think they may be the only one with any I-5's these days. I-6's and V-12' are the best of the bunch for ballance.

    As far a Audi 5000's, I remember Car and Driver doing a test where they ran the Audi to 70 mph, floored it while hitting the brakes. While it took more brake pressure to stop the car, it did stop, and only took about 10-20 ft more than with the throttle released! THAT test never got much public attention.

  • 2002slt2002slt Posts: 228
    My Envoy finally showed its first defect after 15 months and 15,000 miles.
    My wipers decided that they wiped their last raindrop. At least they made it through an extremely wet day here in Chicago on Saturday before retiring. I went out Sunday morning and as I turned on the washers, all I got was washer fluid sprayed on the windshield. I had to pull over and wipe it by hand. After checking the fuse and tilting the steering wheel up and down repeatedly, thinking it was a wiring harness thing, I gave up.
    I took in in today after work. They said that the wiper motor had shorted out and fried. The mechanic claimed that water had been seeping onto the electrical contacts/connector of the motor, which corroded and caused the short. He said that he's seen this before, so beware.
    I have to wait 2 days for the parts to come in. I'm praying for blue skies!
  • steverstever Posts: 52,572
    Sorry Scottc454, all that Audi talk got me curious. I did refrain from posting the other 6 or so links I found :-)

    I'd post a link about "displacement on demand" but y'all beat me to it...

    Now the question is whether the incentives will be suspended since the plant is closed due to the recent tornado.

    Steve, Host
  • johntrjohntr Posts: 71
    My TrailBlazer turned 40k this past weekend. Still running strong!
  • ficussficuss Posts: 541
    2002slt: did your wiper motor act up before quiting. Recently, my TB wipers hesitate mid wipe if in the slow or auto rain sense mode. I was wondering if this is normal to the auto rain sense mode.
  • 2002slt2002slt Posts: 228
    They have worked flawlessly since last June. Back then I had a problem where they came on during a car wash while the switch was in the off position. Each time the spray hit the windshield it did this. I don't have the rain sense option, so it was really strange. It never happened since, so I just ignored it.
  • tblazedtblazed Posts: 945
    with all their years of experience, GM would have figured out how to make reliable windshield wipers:

    From Edmunds

    GM Recalling Pickups for Wipers
    Date Posted 05-08-2003

    Faulty windshield wipers are again causing General Motors to issue a recall on its vehicles. The company will recall nearly 1.77 million pickup trucks, SUVs and vans in an extension of an earlier recall that replaced wiper circuit boards and wiper-motor covers. The problem hasn't caused any fatalities, the company said in a release. The vehicles affected include the 1994-1997 Chevrolet C/K and GMC Sierra trucks; Chevrolet Tahoe and Suburban/GMC Yukon SUVs; 1995-1997 Chevrolet Astro and GMC Safari vans and Chevrolet/GMC full-size crew cab trucks; 1996-1997 Chevrolet Blazer and GMC Jimmy mid-size SUVs, and Chevrolet S-10, GMC Sierra and Isuzu Hombre compact trucks.
  • dlaredlare Posts: 43

    My wipers started acting up last week as you describe. On fast, they work great, on intermitant speeds they work great - BUT on the regular setting (one below fast), they have a mind of their own! They may stop altogether, they may run a ramdom intermitant cycle, it varies from day to day.

  • kpp14kpp14 Posts: 62
    Had the same problem (twice)when I picked up my 2002 Envoy. Whats happening is that there is water inside the wiper motor!! As you go around a corner or in some cases over a bump the water makes the contact that activates the motor!! The second time it happened I watch the mechanic open the motor housing and no less than a cup of water come pouring out. They put a new motor in and it has not occurred since.....that was 10 months ago.
Sign In or Register to comment.