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GMC Sierra: Problems & Solutions
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She noted in her decision that the problem does not affect the "value, use or safety" of the vehicle... she ought to drive it 25-30 miles!
And another thing... I told her specifically that the vibration is the worst when you get to 55+ MPH, so how fast did we go on the inspection??? Anybody wanna guess??? Max 50 MPH!
Anybody know a good lawyer that wants to crucify GM?
Sorry folks... just venting, but if you know a good lawyer in GA please drop me a note!
TC
PCV valve ? Others here have had high
oil usage and a newer GM PVC valve
seemed to solve their problem.
FWIW: My 96 Caddy uses 1 qt. every
1000 miles from brand new. Caddy
said that its normal ! MY 97 350
NEVER used a drop between changes...geo
Now if gets down below 1qt/2000miles, I'd get upset.
Mike L
Maybe it's the PCV the other guys are speaking about. My driving habits are mostly in town about 35 miles a day and that 7 mile trips at a time. I'm very easy on a vehicle. Don't even go off road with the Z truck. Tow a bass boat is about the heaviest thing I do. Anyhow, my '95 didn't use any at 80,000 miles. I'm very concern about a brand new auto using oil.
Guys keep me posted if you hear anything other than the PCV valve.
Billy
Hunter
I have 24005 Miles and my truck doesnt use a drop of oil
These trucks that use 1 quart every 1000 miles though have a problem!
Hunter
Last change was done with about 2800 miles and 3 months exactly.
I have a 6qt pan. I filled the pan and after spilling a little on the floor i have 5.5 qts filled up So maybe i used .2 qts if that
Also anybody else with leather seats have problems with them cracking?
About the oil loss...I have minimal oil loss, with changes every 5000 miles. I don't think ANY amount of substantial (> 1/3 quart every 5k) oil loss is acceptable.
There was a site to find out all the TSB's issued to date but I'll be damned if I can remember the whole link it's www.crackeregg/2000cktruck or something like that.
A little help from the gallery out there.........
Sucks to get old ! Memory is the first to go they say.
Ray T.
Lean Hesitation, Sag or Stumble on Light/Moderate Acceleration (Reprogram PCM) #01-06-04-006
Lean Hesitation, Sag or Stumble On Light/Moderate Acceleration (Reprogram PCM)
1999 Chevrolet and GMC C/K Pickup Models (Silverado, Sierra)
with 4.8 L, 5.3 L or 6.0 L V8 Engine (VINs V, T, U -- RPOs LR4, LM7, LQ4)
Condition
Some customers may comment on the following condition:
A lean hesitation, sag or stumble present during light to moderate accelerations.
Usually only present on the first one or two accelerations.
The condition occurs when the coolant temperature is between -6°C and +21°C (20°F and 70°F).
Fuels with a high driveability index can also be a contributor.
Cause
Calibrations not optimized for various operating parameters.
Correction
Verify that the driveability condition is not the result of an inoperative component, or a related wiring/other condition.
Calibration Information
Old Calibration P/N New Calibration P/N Vehicle Engine/RPO
9357587 9358565 2WD and 4WD 1/2 ton PU 4.8 L/ LR4
9357589 9358567 2WD and 4WD 1/2 ton PU 4.8 L/ LR4
9357593 9358568 2WD and 4WD 1/2 and 3/4 ton PU 5.3 L/LM7
9357595 9358570 2WD and 4WD 1/2 and 3/4 ton PU 5.3 L/LM7
9357598 9358572 2WD and 4WD 3/4 ton PU 6.0 L/LQ4
9357600 9358574 2WD and 4WD 3/4 ton PU 6.0 L/LQ4
The Calibrations listed are electronic calibrations and are NOT available from GMSPO. Calibrations will be available from Techline starting November 2000, on the TIS 2000 version 19.5 TIS 00/2000 data update or later.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation Description Labor Time
J6355 PROM Reprogramming Add: Diagnosis Use Published Labor Time
© Copyright General Motors Corporation. All Rights Reserved.
The manual also tells you how to reset this reminder message too! Just gotta READ your manual.
Ray T.
Ray T.
If light does not pop before 5,000 or 6 months it will get changed.
Hopefully, the GM engineers know more about the engine and its oil needs than I will ever know, so I follow their oil change light.
Modern oils are clearly superior to older oils, modern engines are built to closer tolerances with better materials. It only makes sense that the oil change intervals should be longer than they used to be. I like the fact that the truck will call for more frequent oil changes under hard operating conditions and less frequent changes for ideal operating conditions. Makes sense to me.
Mike L
Another question- I've noticed that a lot of you say you have switched over to Mobil 1 or some other synthetic oil. Are your trucks in heavy duty use or just normal wear and tear? What are the advantages to using synthetic rather than regular oil if the major use of the truck is just normal light duty? Or is this just personal preference?
I decided to give them a try when I went into Walmart to pick up oil to do a change in both of my trucks - and the penz 5w30 I always buy was $1.67 per quart and the M-1 5w30 was on sale for $2.93 per quart. Seems like I could always buy penz for around $1.00 / and M-1 was always $4.74.
I thought what the hell -
I bought enough M-1 for 4 changes - after that we will see
Mike L
-- Don
Mobil 1 is the way to go... But I like to change my oil every thousand miles, soit would get very expensive to do that. I'll just stick with just plain ole 5w30. I tend to stick with Chevron. Mobil regular oil will leave a film, so if you use an oil cleaner later on, the film will wear off... The good thing about Mobil regular is that it is good oil. You may see a performance difference the first time but that's all.
But if you live in a climate like us, the oil will turn to goop in the pan. If you don't heat the block before, you may need a new pump at 40k.
See as I only have 5K on my truck, I think It will last a long time..... But 3k is about normal for any car/truck to be done...
tansmission. The technician that installs the new one will de-burr the output shaft of the transmission in order to allow the new yoke to slide properly. There is no discernable damage done to the splines.
File In Section: 08 - Body and Accessories
Bulletin No.: 01-08-66-005
Date: June, 2001
INFORMATION
Subject:
Availability of Pickup Box Reinforcement Kits for Toolbox/Rear Window Barrier/Ladder Rack Applications
Models:
1999-2001 Chevrolet and GMC C/K Pickup Models (Silverado and Sierra) With Fleetside Pickup Box (RPO E63)
New pickup box reinforcement kits are available for customers who may want to install a cross toolbox, side box, or a ladder rack system as an accessory.
Important: The reinforcements must be installed before adding a toolbox or ladder rack system. After the reinforcements have been installed, follow the instructions supplied with the toolbox/ladder rack system for installation onto the pickup box.
Use the following service procedure to install the reinforcements. Use the applicable reinforcement kit part number listed below.
Toolbox and Rear Window Barrier Applications Only - Front Reinforcement Installation
Important: The horizontal surfaces of the reinforcements must be flush to the horizontal surface of the pickup box top rail. Use a clamping tool when positioning the reinforcements onto the top rail to ensure flushness to the outer panel.
1. Place the front L-shaped reinforcements into position on the front top of the pickup box. For vehicles equipped with an over the rail bedliner, the bedliner should be removed with the aid of an assistant prior to installing these reinforcements.
2. Mark the holes necessary for drilling.
3. Remove the front reinforcements.
Important: Use a block of wood and/or a drill stop in order to protect the back of the cab while drilling.
4. Drill two 13.5 mm (0.54 in) holes per side into the box section of the front panel.
5. Drill 7.5 mm (0.30 in) holes into the weld flange of the side outer panel.
6. Touch-up the drilled holes as necessary using the information found in the applicable Service Manual and GM Refinish Material Booklet # 4901M-D-2001 (English) or # 4901M-D-F2001 (French).
7. Place the front reinforcements back onto the box, lining up the drilled holes.
8. Install the large shoulder (M8) bolts into the reinforcement and front panel (total of 4) and the small (M6) bolts into the reinforcement and side outer panel (total of 6) with the nuts.
Tighten
^ Tighten the M8 bolts to 25 Nm (18 lb ft).
^ Tighten the M6 bolts to 9 Nm (79 lb in).
9. Remove all metal shavings from the pickup box after installation.
10. Install the bedliner if equipped with the aid of an assistant. The bedliner may need to be trimmed in order to obtain the necessary clearance to the reinforcements.
Ladder Rack Applications Only - Reinforcement Kit Installation
1. Install the LH and RH front L-shaped reinforcements using the procedure above.
2. Remove the LH and RH rear taillamp assemblies. This is necessary to gain access to install the rearmost bolt of the rear reinforcement.
3. Place the LH and RH rear reinforcements into position on the pickup box.
4. Mark the holes necessary for drilling and remove the reinforcements.
5. Drill 7.5 mm (0.30 in) holes into the weld flange of the side outer panel.
6. Touch-up the drilled holes as necessary. Refer to step 6 under Front Reinforcement Installation procedure.
7. Place the rear reinforcements back onto the pickup box.
8. Install the M6 bolts through the reinforcement and side panel with the nuts.
Tighten
Tighten the bolts to 9 Nm (79 lb in).
9. Install the LH and RH rear taillamp assemblies.
10. Place the LH and RH center reinforcement into position on the pickup box.
^ On the 2.4 m (8 ft) long pickup box models, this center reinforcement fits over the existing center stake hole.
^ On the 2 m (6.5 ft) short box models, these center reinforcements are recommended to be installed. The reinforcements should be centered between the front and rear reinforcements on the pickup box.
11. Mark the holes necessary for drilling and remove the brackets.
12. Drill 7.5 mm (0.30 in) holes into the weld flange of the side outer panel.
13. Touch-up the drilled holes as necessary. Refer to step 6 under the Front Reinforcement Installation procedure.
14. Place the center reinforcements back onto the pickup box.
15. Install the M6 bolts through the reinforcement and side panel with the nuts.
Tighten
Tighten the bolts to 9 Nm (79 lb in).
16. Remove any metal shavings from the pickup box after installation.
Parts Information
Parts are expected to be available 6/22/01 from GMSPO.
* Maximum Equipment Weight Capacities (equipment and cargo)
^ Ladder rack and cargo - 364 kg (800 lb)
^ Cross toolbox and cargo - 182 kg (400 lb)
^ Side boxes and cargo - 159 kg (350 lb) (per side)
* The combined weight for all rail-mounted equipment should not exceed 545 kg (1,200 lb).