transmission adjustment
2003 silverado shift problem
i lost 1st and 4th gear in my 03 1500 4.8 silverado, it has the 4l80e tranny with the 16 bolt pan. i checked the wireing going to the tranny, and all the fusses. i am going to replace all 4 controll solenoids, what do you think? the tranny has allso been makeing a loud buzzing sound for a long time now when its cold when you start it and when it shifts, any ideas?
Re: 2003 silverado shift problem
First off, you would have a 4L60 trans, not a 4L80 in your truck. The buzzing noise sounds like a possible bad trans fluid pump and/or torque converter. I doubt replacing any solenoids is going to fix your problem, as it's rarely an electrical/solenoid issue on those transmissions. You've more than likely got some internal damage that has caused 1st and 4th gear to go. You would be looking at a disassembly and teardown to really determine the cause. If you have had a pump failure, debris has gone completely through the trans including the torque converter...same if the torque converter is about to fail. I'd be willing to say you're going to need a complete overhaul.
GM Dealer Technician For 18+ Years
In the automotive industry for 20+
In the automotive industry for 20+
Re: 2003 silverado shift problem
well i replaced both shift solenoids, the converter lock up solenoid, and the converter clutch pwm solenoid and the tranny works like new, plus no more noise. well you had one thing right, i do have the 4l60e not the 4l80e, thank you protech.
Re: 2003 silverado shift problem
Glad it was an easy fix, you definitely lucked out on that one!
GM Dealer Technician For 18+ Years
In the automotive industry for 20+
In the automotive industry for 20+
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Re: My truck will only drive in first & second gear, and rev
Looks like you've smoked the transmission, probably a band or clutch pack. Either way, the trans will have to come out, be taken apart and diagnosed. Good luck.
GM Dealer Technician For 18+ Years
In the automotive industry for 20+
In the automotive industry for 20+
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- Joined: Tue Feb 12, 2013 5:42 pm
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Re: My truck will only drive in first & second gear, and rev
Are u throwing any codes?
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2006 silverado will not go in drive
i have a 2006 silverado and the other day when i was backing up i took it from reverse and put into drive and heard a loud popping sound. Now my truck want drive will i put it into drive or 3rd but it will go when i put it in first and reverse. what could it be?
Re: 2006 silverado will not go in drive
Sounds like something broke inside the transmission. A pop sound is never good. There is nothing like a simple shift solenoid that can cause the problem you are having. There is an internal problem inside the transmission.
transmission adjustment
tv cable adjustment for a "89" silverado 5.7l ?
Re: transmission adjustment
depress the metal lock tab on the TV cable and move the slider out away from the throttle body until it stops at fitting. Let the metal lock tab go and then make the throttle body lever move to full throttle. that should auto adjust the cable to the correct setting.
if you have a Throttle valve cable
if you have a Throttle valve cable
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