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Comments
If the new i5 has essentially 84% of the displacement of our i6 and is advertised to be essentially a shortened version of the i6, why then does in only produce approx 78% of the hp??
How do they do that "whole is greater than the some of the parts thing?"
Frank
Thanks
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"This engine features pressed in cast iron liners. The installation process includes chilling the liner prior to placement and sophisticated precision force monitoring to insure proper installation. The press-fit, ground outside diameter of the liner against the precision bored aluminum cylinder provides optimal heat transfer. After installation, the iron liner is bored to a mass saving 1.5 mm wall thickness." 1.5mm.
Here is an example (not sure if this one is applicable to the TB):
http://www.etrailer.com/faq/wiring.asp
Who's to say that the I-5 uses the same type of cam and heads? They could have tuned it for more low end torque to make up for lower displacement. This would sacrifice some of the high end.
Also, now that it's no longer an inherently balanced inline 6, they may have added a balance shaft which would cause more drag.
78% power from 84% displacement?
Even though this type of math isn't meaningful, I don't consider those percentages to be off too much.
Sorry this took up alot of space.
Connector Part Information 15354653
7-Way F Metri-Pack 280 Sealed (BLK)
Pin
Wire Color
Circuit No.
Function
A
LT GRN
1624
Trailer Backup Lamps Supply Voltage
B
WHT
22
Ground
C
DK BLU
47
Trailer Auxiliary Supply Voltage
D
DK GRN
1619
Trailer Right Rear Turn/Stop Lamp Supply Voltage
E
RED
742
Battery Positive Voltage
F
BRN
2109
Trailer Park Lamps Supply Voltage
G
YEL
1618
Trailer Left Rear Turn/Stop Lamp Supply Voltage
http://photos.msn.com/viewing/photo.aspx?GXjoJRPv*Lq8VA9E0sByrJt5- - - *7HJCBP*fkko0q1HEqG*xWdz57vawQhs9wUfaMS0!cUw!G!hBIEZywMMNEKcuDrGx- - - 8CpXEvrDDWzmjqQLmQ6LQjssKyOCA$$
I am also assuming this is the receiver end (the part on the car)?
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.
Frank
There was no fault ever proven against the manufacturer.
It was 20 years ago - sounds more like something that would happen these days, huh?
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?
Frank
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.+
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.
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.)
Frank
"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.
http://www.gm.com/automotive/gmpowertrain/vortecinline/shaft.htm
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
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?
Thanks!
http://www.msnbc.com/news/910943.asp?0ct=-30a
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.
Sudden Acceleration & Stuck Throttles (Mechanical Forensics Engineering Services)
Steve, Host
And gee Steve, can we stick to topic? :^)
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.
GAM
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!
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
Frank
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.
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.
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.
Dean
Frank
What about the stalling at highway speeds problem?Is it still an issue.
Has anyone had the vibration problem really fixed?
Has anyone had to replace brake pads yet and at what mileage.
Frank
GM plant to be rebuilt (Oakland Press)
Steve, Host