Last post on Oct 17, 2006 at 8:34 PM
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Chevrolet Silverado 1500, Chevrolet Silverado 2500, Chevrolet Silverado 3500, Truck
#129 of 1497 Chevy Silverado 2004 Trans slips out of Gear on Inclines and Hills
Dec 21, 2004 (3:35 pm)
I have a Chevy Silverado 2004/2500 crew cab 4x4, and everytime I'm on any type of incline or hill and have to stop once I take my foot off the brake it rolls backwards, the transmission is no longer ingaged, does anybody else have this problem? The dealer told me this normal and I should not worry about it, I told him this is a safety hazard and should be corrected.
#130 of 1497 Re: Chevy Silverado 2004 Trans slips out of Gear on Inclines and Hills [big
Dec 22, 2004 (12:04 pm)
When on level ground does the truck roll forward when the brakes are released? Depending on the slope of the hill, I would think most vehicles would roll backwards unless your idle is set to 1500 rpm.
#131 of 1497 Re: Chevy Silverado 2004 Trans slips out of Gear on Inclines and Hills [bigdave007]
Dec 22, 2004 (2:06 pm)
Just about every vehicle I've driven with an electronic auto tranmission does this.
#132 of 1497 Re: Chevy Silverado 2004 Trans slips out of Gear on Inclines and Hills [bigdave007]
Dec 23, 2004 (11:11 am)
It's not that it slips out of gear but rather, as Obyone says, the revs are not high enough to hold weight of vehicle with no brake applied on an incline. I think if you tried it with any auto trans vehicle you would have the same results.
#134 of 1497 2000 Silverado Tranny Woes!!!
Dec 28, 2004 (6:41 pm)
I purchased my 2000 Silverado Z-71, Ext Cab with: 5.3,auto and tow package new in Nov 1999. My first problem with the tranny felt like axle wrap up and occurred at 19,981 miles. Chevrolet's fix was, power flush tranny 3 times and problem was gone. Sometime after 38,000 miles, I addressed a drivetrain clunking noise when I brought the vehicle in to a GM dealership service department for an oil & filter change and was told that everything was in spec (no excessive play in any drivetrain components) and backlash in rear end was within specification. There were two other subsequent oil & filter change visits to the same GM dealership and again I asked the service department to check out the clunking in the drivetrain to make sure that the U-joints did not need to be replaced and each time I was told that everything was fine. I brought my vehicle to a different dealership around 73,000 to have them look into the clunking noise and I was advised of the service bulletin on slip yoke. New slip yoke was installed and the dealership Service rep advised me that the GM service bulletin also required the tranny shift pattern to be re-programmed which they did. Around 91,000, I got the "Service 4WD" message and had to replace an electronic selector component and re-program the shifting pattern again. At 92,347 miles, I got a brief "Service 4WD" message light immediately followed by the "Service Engine Soon" message and a whirring/whining noise became audible from the tranny. I drove the vehicle approx. 8 more miles to a Chevrolet dealership and along the way, the message went out but the noise changed into the sound of grinding metal.
Because of the significant investment at the time of purchase and the fact that I planned to keep this vehicle as long as possible , I have been dilligent in having the the required service work done IAW the specified GM schedules. The service work I had performed included the change of the transmission fluid at each of the 30,000 mile intervals following the first transmission fluid change that was performed by the dealership at 19,981 miles.
Any one else had similar history on these types of problems and what has Chevrolet done to rectify the problem?
#135 of 1497 gurgling moises
Dec 29, 2004 (8:06 pm)
The noise is coming from the heater core. Their
are two restrictors on the engene side of the fire wall the TSB says to remove them I had this done
and the noise went away I live in northern new york
and cant see any differace in the heat or the engene
warmup time in below zero weather.
#136 of 1497 Re: Chevy Silverado 2004 Trans slips out of Gear on Inclines and Hills [bigdave007]
Jan 03, 2005 (9:33 pm)
You haven't come back for clarification so I am guessing you may be satisfied with the answers.
If you have to move the shift lever to get it back in gear, IT IS A PROBLEM.
If applying a little gas to up the RPMs makes it move forward again, it is normal.
It has to do with the function of an automatic to not need a clutch depression to stand still. There is a "stall speed" that makes the fluid pressure inside the converter cause the transmission input shaft to turn.
Same thing on sedans.
If you need more detail, just ask and there are many out here who could provide a better explanation.
Enjoy the convenience of not having to do the clutch deal on a hill.
I think there was a model or two of cars that had the "hold" on a hill feature. Somehow, it hasn't spread to other vehicles.
#137 of 1497 Slipping Tranny
Jan 08, 2005 (7:54 am)
Just as a note of interest, I tested my truck after reading the above complaint and it does indeed hold on a fairly steep incline. It should also be noted that it's an Allison 1000 which likely has a different "stall speed" than the one previously mentioned.
#138 of 1497 CRANKSHAFT SENSOR
Jan 12, 2005 (5:09 pm)
I have 2000 Silverado pickup and the crankshaft sensor is leaking oil. I had checked out by the Dealer. Does anyone have a mechanical manual and provide a picture of where this sensor is located? I know it's around the area behind the fan. Has anyone had trouble with this sensor? I thought maybe it may need a little tightening.
Any suggestions are appreciated.