Last post on Jul 16, 2013 at 4:58 PM
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Chevrolet Blazer, GMC Jimmy, SUV
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#1041 of 3676 humming sound
Mar 08, 2005 (4:48 pm)
I am hearing a humming sound on my 1997 jimmy GMC and it seems that the sound is coming from under the vehicle, but i'm not quite sure if it is from the engine because you can hear it loudly when you listen to the under the vehicle near the rear tires. The sound happens all the time when the engine is on/idling or the car is running.
Has anyone have a problem like this, can someone give me an idea what causes the problem. I don't have problem with the tranny or pull/power of the vehicle.
#1042 of 3676 Re: humming sound [rich25]
Mar 08, 2005 (8:24 pm)
Remove the gas cap and listen in. If it's louder, it's the fuel pump. Don't leave it running too long with the cap off, might set an EVAP code.
#1043 of 3676 still humming sound
Mar 09, 2005 (9:58 am)
Thanks for the info alcan but I still got the humming sound. I wasn't able to say earlier that the humming sound only happens during the hot environment, because when i go to work in the morning with about 40degF outside temperature the humming sound is not there. But during noon when we have about 65degF outside temperature that's the time I can hear the humming sound and it's really annoying.
#1044 of 3676 Service 4WD dashboard light
Mar 09, 2005 (1:49 pm)
The service 4WD service light on my 2000 Jimmy comes on intermittently. I took it to a transmission place and they can't find anything wrong with it. They are not getting any error codes. I'm down in Florida now and will be returning home to NJ in about 6 weeks and am concerned about the transmission on the long ride home. Anyone else have this problem and know how to deal with it?
#1045 of 3676 Re: 1999 Jimmy 4wd [willp]
Mar 10, 2005 (11:20 am)
I recommend you have your present battery throughly checked for static voltage and voltage under load. While touching the positive and negative jumper cables together is ill advised, it should have resulted in more than a "snap". It would have been a more memorable event with a fully charged battery. If your battery is OK, cable connections should be checked, cleaned, and torqued. Although you examined your obvious fuses, there is a battery fuse (175 amp)located under the battery. It is bolted to the radiator support panel (the battery must be removed to access it). All voltage to your underhood fuse box and dash fuse box goes through the battery fuse. The connections at the battery fuse should be clean and snug. The blowing horn symptom is an uncertain one. However, low battery voltage to the computer (Powertrain Control Module)can result in random toots and rings.
#1046 of 3676 Re: POSSIBLE COMPUTER OR ELECTRIC PROBLEM???
Mar 10, 2005 (1:49 pm)
I have a 2000 Blazer, recently when driving, when I push the door lock button- it locks all doors except driver doorlock- yet if the key is out of ignition it will lock all. Also, my dome light (when opening doors) wont go on, unless I manually do it. When I turn the car off, the radio and windows would still work for about 30 seconds or until I opened the door- they no longer work when the key is removed. Any ideas? I did check the fuses, they are fine. Please help!
#1047 of 3676 Re: POSSIBLE COMPUTER OR ELECTRIC PROBLEM??? [mtreese]
Mar 10, 2005 (2:33 pm)
First guess would be a defective left front door ajar switch or a broken wire in the conduit between the body and left front door.
Mar 10, 2005 (5:11 pm)
My 96 Blazer started making a chirping sound when the wheels were rolling, and the smell of brakes grew stronger every day for the past month. We took it to two mechanics who said nothing was wrong. Then, this week, I started getting all kinds of grinding sounds that shook the vehicle when I used the brakes, and they would stick when I started to move again.
I took it in to the shop today, and they thought it was a dead caliper on a front rotor. So they replaced it, but it still had the same problems. They said it must be the ABS brakes and I would have to take it to a Chevy dealer. That's usually an expensive way to go so I would like to know if anyone out there has experience with this. I saw a similar post from 2003 in which they paid $1,500, but they didn't mention any alternatives. Thanks.
#1049 of 3676 Trouble changing Spark plugs
Mar 10, 2005 (5:16 pm)
S-10 Blazer, 4wd, 5 spd. I can't seem to get at the second one on the drivers side. Please help.
#1050 of 3676 99 blazer fuel problems
Mar 10, 2005 (7:38 pm)
I have a 99 2 door blazer. A few weeks ago my gas guage read that it had no gas and i had just filled up and for about a week it would bounce from completly full to empty. Now after 3 weeks it always just says low fuel and says its on empty. I've heard it could be a bad ground, blown fuses, or sensor, but im not sure. Also my front right wheel when I gradually turn left to merge a lain or whenever the wheel hardly goes to the left it makes a buzzing noise like the wheel is rubbing the wheel well is what it sounds like. Not to sure on that one either, but any help would be greatly appriciated, thanks.