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GMC Sierra: Problems & Solutions - READ ONLY

1492 messages,  Last post on Oct 12, 2006 at 5:32 AM

You are in the Chevrolet Silverado & GMC Sierra Forum. Your Host is kcram

What is this discussion about? GMC Sierra 1500, GMC Sierra 2500, GMC Sierra 3500, Truck


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#7 of 1492
And with your new 2500, by obyone
Nov 25, 2000 (11:15 pm)
you may want to order a Lund Interceptor for it, hopefully Lund has one by then....
#8 of 1492
Sierra auto trans COLD shift problem. by pclar08
Nov 28, 2000 (10:54 pm)
Vehicle: 1999 GMC Sierra 1500, 4wd, ext cab, 5.3
l, 4.10 diffs(rear locking).
Description: When transmission is cold (below 25
degrees)the 2-3 upshift does not occur until 32-33
mph. As the transmission warms, shifting becomes
normal. Under light acceleration, approximate
normal shift is: 1st-2nd: 10 mph; 2nd-3rd: 20 mph;
OD: 35 mph. 33 mph in 2nd gear is 2500+/- rpm, way
to fast for a cold engine (or transmission). This
has been a problem since the first winter (99).
Not a problem in warm weather but the cold has
returned & it's the same as last winter.
Transmission was serviced in Sept (flushed)
w/approx 32K miles. My brother inlaw has a similar
setup (4wd/5.3/3.73/sb)& has the same problem. His
dealer said this was 'normal'. Any advice on this
problem?
#9 of 1492
pclar80 by mblrds
Nov 28, 2000 (11:26 pm)
I have roughly the same vehicle that you do, except mine's a 2000 Z71.
The owners manual(2-23) says that when the temperature gets below 32 degrees, the transmission is designed to shift differently until the engine reaches normal operating temperature. Something about improving heater to performance.
M.
#10 of 1492
Correct by vince4
Nov 29, 2000 (7:30 am)
This behavior is by design, it is not a problem even though it may be annoying.
#11 of 1492
Annoying to say the least. by pclar08
Nov 29, 2000 (1:03 pm)
This must be another 'better idea'. Oh, well. Other than that (and the other standard issues this series has had), this is one great truck: rides great, good fuel mileage, tows anything, goes anywhere.
Thanks for the response!
#12 of 1492
by gonzo7
Dec 02, 2000 (12:08 am)
Toyotas "hold" the shift until warmed up too.
#13 of 1492
Some Other Sierra Problems by wxfcstr
Dec 02, 2000 (3:45 pm)
I've got a 99 Sierra with a couple of annoying problems the dealership has totally ignored.


Has anyone had:
1) A creaking or growning sound in the front end
when making sharp turns?? This problem didn't start until I hit bout 20k. Everytime I back out of the drivewy, the front end lets loose a "somethings binding" type groan. The classic dealership diagnosis was "dirty PS fluid".


2) Erratic Fuel Level Mesurement?? Once again, not something that started until several thousand miles were logged. I can put gas in and get one reading. When I get home, it can be reading an 1/8th of tank different. Depending on gas sloshing in the tank, I've seen the gage needle travel a 1/4 tank back and forth. A low fuel gas slosh has occasionally set the "Low Fuel" light blinking off and on.
The dealer response: The tech sat in 2 new Sierra's and noticed different gas level readings each time he started them, so there is no problem. End of diagnosis.
#14 of 1492
Sierra c-3 by phillipm
Dec 08, 2000 (1:43 am)
I've been reading all the Sierra info. and wondered if anyone has any firsthand experience with the new Sierra c-3? The 6.0 sounds great but would like to know if the all wheel drive feature is as good as it looks on paper. Any comments?
#15 of 1492
Is the 97 GMC Sierra a Loser? by dkacy
Dec 11, 2000 (2:45 am)
I have a 1997 GMC Sierra purchased New in 97. It is a Regular Cab, Short bed. V6, automatic. It was bought because I wanted something safe.

This thing has had what I think are alot of problems in it's 3 year, 29,000 mile life. Here are some of the things replaced, most went bad before 20,000 miles:

Power Steering Pump
Climate Control panel
Air Conditioning compresser
Transmission tail seal
Tourqe Converter
2 Brake Master cylinders 8 months apart
left and right rear axel seals
Steering Gear Box
Fuel sending unit in tank
Passenger window channel (twice).
Seat belt buckle

I took the truck thru arbitration, the arbitrator sided with GM, deciding it did not have "4 repairs on the same item").


In addition to the above, it has lousey fit and finish (I've noticed other 97's that have varring problems with roof-line and door fit).


The mechanic's at different dealerships insist it's a good truck (they also boast they have "job security" because of GM's junk being sold to the public, and that they would not own a newer vehicle).


I'm wondering if this thing is better off being sold off at a loss before something major goes wrong (I've read the posts about vibration and transmissions).

The most irratating is a noise in the front end that started after I had the wheel bearings re-packed. A click noise everytime it goes in a driveway, or over a bump. Not as bad since the cold weather hit, but annoying just the same.

It also has a problem with the rear brakes staying "adjusted" (I had the brakes checked last week, it still has over 60 percent of the front linnings left, and over 90 percent in the rear).

Fuel Milage in town is about 13 in the summer, 18 on the highway (60 to 65 mph). In cooler weather it's about 15 city, 20 to 23 highway). I do not lead-foot it, and have "baby'd" it since new, which is why I worry about how it would preform if used normally.

Am I expecting too much from a new vechile? My old 74 Pinto did not have half the problems of this truck (for that matter I don't recall having any vehicle with this many problems, except for a 78 Subru Brat with an un-fixable 4 speed).

Any info would be welcomed. You can e-mail direct at dkacyhotmail.com .




#16 of 1492
perhaps you should go back by mgdvhman
Dec 11, 2000 (11:06 am)
to the 74 pinto?


Sounds like you just got a bad one.......results are not typical of that vehicle....


 - Tim

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