1999 Silverado K1500 Z714X4 Issues.

I just bought one of these (Extended cab, 5.3L 323V8) last Friday and I've a couple of Q's for anyone who may know. 1st. It seems like a good, strong running truck but occasionally when I shift
into drive or reverse, once the gear engages I hear a 'clunk' coming from underneath. Its not loud and it don't sound like something serious and I've had a couple of people I know say its normal for a Chevy tranny to sound like this (never owned a Chevy before myself). Should I have it looked at? Under normal driving conditions, it shifts fine with no noise or noticeable shifting problems. It has 60,500 miles on it and the tranny fluid level is normal and looks clean. 2nd. Is there any way to bypass the automatic headlights on this truck? There is no knob or button that does so altho the manual lists one. I would much prefer to be in control of when the headlights come on. Thanks for any info.
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is it an old body style or new body style? i ask cause the old body style headlights double as DRL. NBS have separate DRL. i just simply unplugged mine.
other than that, the only way i know to disable them is to engage the emergency brake before you turn the ignition on. i wouldn't drive long distances with your brake on but one click for a short distance shouldn't hurt.
the tranny sounds pretty normal. mine does the same thing...and i've been told over and over that its nothing to worry about. however, a spot check by a tranny guy would do wonders for your peace of mind.

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| is it an old body style or new body style? | i ask cause the old body style headlights double as DRL. | NBS have separate DRL. i just simply unplugged mine.
Its the newer body style and the DRL's are merely brake-light looking bulbs and seperate from the headlights. Theres a sensor on the dash that detects night or day to turn them on or off. I found a fuse for it but it also powers several other things and the check engine light came on when i pulled it :\ maybe I can rewire that sensor to think its daytime all the time lol.
| the tranny sounds pretty normal. mine does the same thing...and i've been | told over and over that its nothing to worry about. however, a spot check by | a tranny guy would do wonders for your peace of mind.
The dealership i got it from just fixed a few minor things on the truck and I told them to check the tranny also. They said everything was fine but I'll get a 2nd opinion over the weekend. thanks for your help.
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The clunk is probably caused by the driveshaft slip yoke where it enters the transmission. Its a known problem and it will get worse. The first repair is to take it to the dealer, get out your vaseline, and pay about $800 for them to replace it with a nickel plated one. The other option is to take about 15 minutes to pull the driveshaft and lube the inside of the slip yoke. Here's the fix for the headlights: To disable the lights, carefully pull the light sensor out of the dash to expose the 2 wires running in to it. Place a 100 ohm resistor in parallel with the sensor. Tape it up and stick the sensor back in the dash. You will now have complete control of when your headlights turn on and off. My truck is the same as yours and I bought an aftermarket package that I can use my headlight switch for the headlights. Hope this helps! .

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Thanks. I'll give that a shot. perhaps the dealer can lube the yoke for me 1st, repair later. thanks again! AA
| > | is it an old body style or new body style? | > | i ask cause the old body style headlights double as DRL. | > | NBS have separate DRL. i just simply unplugged mine. | > | > Its the newer body style and the DRL's are merely brake-light looking | bulbs and | > seperate from the headlights. Theres a sensor on the dash that detects | night or | > day to turn them on or off. I found a fuse for it but it also powers | several | > other things and the check engine light came on when i pulled it :\ maybe | I can | > rewire that sensor to think its daytime all the time lol. | > | > | > | the tranny sounds pretty normal. mine does the same thing...and i've | been | > | told over and over that its nothing to worry about. however, a spot | check by | > | a tranny guy would do wonders for your peace of mind. | > | > The dealership i got it from just fixed a few minor things on the truck | and I | > told them to check the tranny also. They said everything was fine but I'll | get a | > 2nd opinion over the weekend. thanks for your help. | > | > | |
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