Question about 2002 GMC Sierra

1 Answer

High speed sound that sounds as though something is hitting a fan,or a main bearing that has gone

I have a 2002 duramax GMC. I was driving down the highway and this sound occured, it only lasted about 3 seconds and happened 3 times on a short hour trip, twice on the way there and once on the way back. No visual effects were noticed as a result of the sounds, all guages remained the same and no lights came on. I just had all injectors replaced, the front diff out to change a seal,all shocks changed,intermeadiate shaft replaced and an exaust leak fixed the day before. Before all this work was done I never heard this noise before ????? Any Ideas anybody. Thanks in advance

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

If its a whisleing sound it is nothing more then the turbo

Posted on Dec 02, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

The fan in my 2002 GMC Savana cargo van doesn't work. I lost low, then medium speed, and finally the high speed.I checked the fuses and relays.I changed the blower resister, still no fan. The heat


Hi Jim, If the vehicle is fitted with climate control it will have electronic management. However it can be wired by someone knowing electrical circuitry to by pass the control. It will save you some cash but will need manual control. Make sure whoever does the job knows what he or she is doing. Have a happy new year. Regards John

Dec 31, 2012 | 2002 GMC Savana

1 Answer

I drive a 2002 Honda Accord and within the last week it has started to make a squealing sound at low speed. It is coming from the front of the car and sounds like the drivers side, but I am not sure. It...


Sounds like you have a cv joint problem, or the front brake pads are worn down to metal and rubbing against the rotor, also could be the wheel bearing. Better have it checked.

Feb 13, 2010 | 2000 Dodge Neon

1 Answer

2.5 tbi sounds like air chisel hitting anvil, very loud, very fast, engine still runs fine. Was intermittent, now constant. engine load does not change sound.


You mention that engine load does not change the sound. How about engine speed? My guess is that the frequency of the "chisel" sound increases with engine speed.

Has this engine been run without any oil? How much oil is in it right now?

From your description, it sounds to me like a burnt up engine bearing (rod or main, it hardly matters). It could even be excessive wear between a wrist pin and piston or piston slap. In any case, it sounds like you have been driving like this for some time, which means that rebuilding this engine is probably no longer an option (especially if it is a main or rod bearing).

If it is a burnt bearing, you'll probably need to look for a remanufactured or salvage engine. In a '91 GA, unless you find a good salvage engine for less than $500, it probably isn't worth fixing.

That said, I suppose it could be something else.

Jul 14, 2009 | 1991 Pontiac Grand Am

2 Answers

2002 GMC Yukon a grinding sound and feel just started on drivers side front while driving and it's deffinately not the brake rotor.


If its not the brakes then it could be a wheel bearing. Jack it up and spin the wheel. Listen for noise. If it has lots of miles or possibly been driven in high water at some point the bearing could need to be replaced. You should get it fixed and don't wait too long.

Jul 03, 2009 | 2002 GMC Yukon XL

1 Answer

2002 GMC Sonoma shakes


fan clutch may have a bad bearing or it is a cracked flywheel

May 27, 2009 | 2002 GMC Sonoma Extended Cab

2 Answers

2002 Chevy Avalanche ABS kicks in at low speed braking.


maybe a wheel bearing gone bad so sensor reads different speed causing the computer to think wheel is slipping then abs kicks in I have seen this problem with a 2002 gmc 2500 duramax diesel

Jan 07, 2009 | 2002 Chevrolet Avalanche

Not finding what you are looking for?
2002 GMC Sierra Logo

76 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

61037 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

Are you a GMC Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...