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1993 chevy 4x4 gas pressed humming noise constant
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alienshadow
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Aug 28, 2009, 1:19 PM
Post #1 of 6
(3347 views)
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1993 chevy 4x4 gas pressed humming noise constant
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93 chevy 1500 4x4 has new spark plugs rebuilt engine and trans. Replaced distributor but found out it didnt need it just replaced distributor cap. Anyway when driving or in park I hear a humming noise that is constant when gas is pushed it gets a little louder any ideas? My mechanic thinks its between the engine and transmission I hope not .. It might cost alot to fix...Oh also replaced egr valve..When you get down in the floor board where the gas pedal is located you can hear it really well..Push gas and it reves up a little in idle whether park or in drive you hear it also Please help....I just bought this truck last friday...Also how do you put it in 4x4 mode shifter is in floorboard?
If you cant fix it then dont mess with it...
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Guest
Anonymous Poster
Aug 29, 2009, 10:39 AM
Post #2 of 6
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Re: 1993 chevy 4x4 gas pressed humming noise constant
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Anyone? Any odeas?
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alienshadow
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Nov 6, 2009, 1:13 PM
Post #3 of 6
(3276 views)
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Re: 1993 chevy 4x4 gas pressed humming noise constant
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Ha I finally found my problem.. To anyone here who has a noise that hums and seems to get louder as the gas is pressed and does not go away.. Try this my gas lines where touching the truck body I pulled them down wrapped with a rubber hose and bam the noise was gone.. After replacing lots of things something simple is all it was......
If you cant fix it then dont mess with it...
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Loren Champlain Sr
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/ Moderator
Nov 6, 2009, 3:29 PM
Post #4 of 6
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Re: 1993 chevy 4x4 gas pressed humming noise constant
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alien; Thanks for letting us know that you got 'er fixed. Just so you know, if no one has any bright ideas or suggestions, we won't respond rather than sending you on an incorrect path. It's not that we are ignoring you. Thanks for letting us know the fix. I've never run into that symptom/fix before, but I'll put it in the back of my tired mind, just in case someone else runs into it. This is the first I've read your original post. Are you still having problems with figuring out the 4X4? If your truck has locking hubs, you'll need to turn them to the 'Lock' postion. Then, with the vehicle stopped, in neutral, move the transfer shifter to the 4H positon. If you get any 'grinding', turn off the engine, put it in park, then restart and try again. Some work fine in neutral, while others don't like things spinning while trying to engage. If yours doesn't have locking hubs, just ignore that part. Four wheel drive needs to be used even in the off-season to keep things lubricated. It's best to find a gravel road to do this, of course. If not possible, maybe a rainy day. If not, pick a straight stretch of road, at under 40mph, and drive it for a few miles. 4X4 does not like dry pavement. I try to run mine once a month. If my tired mind reminds me. Have a great weekend.
Loren
SW Washington
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alienshadow
User
Nov 6, 2009, 5:48 PM
Post #5 of 6
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Re: 1993 chevy 4x4 gas pressed humming noise constant
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Thanks, yes i got the four wheel drive going.. Altho i didnt know to do it monthly and not to do it on dry road thanks for the important tip... I reposted what I found because I was told it was just a Chevy but my mind is to cautious to believe that, the humming was getting louder.. I think it was done when the engine was put back in who knows.... But is was for sure the gas lines.... This has been a resourceful place for me I find myself reading the post daily lol... Should of taken that auto class in my twenties...
If you cant fix it then dont mess with it...
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Loren Champlain Sr
Veteran
/ Moderator
Nov 7, 2009, 3:15 PM
Post #6 of 6
(3253 views)
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Re: 1993 chevy 4x4 gas pressed humming noise constant
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alien; >>Should of taken that auto class in my twenties...<<
Although I agree that basic auto should be mandatory, no class would've helped you on this one. LOL...You figured it out on your own and should be proud for doing so.
Have a great weekend.
Loren
SW Washington
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