Question about 1998 Buick LeSabre

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1998 Buick LeSabre when heat is off there is a loud rattling noise when heat is on the rattling noise goes away what is this

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Something is stuck in your blower fan. There should be a access door behind your glove box. Drop your glovebox down out of the way, open the panel, there may be a filter for you to pull out, clean it all out, and re assemble.

Posted on Dec 02, 2014

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5 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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lebones337
  • 152 Answers

SOURCE: Re: Location of the radiator drain plug on a 1998 Lesabre

its in the lower right or left hand corner of radiator.
refer to this links diagram for more help.
http://www.autozone.com/addVehicleId,2380201/initialAction,repairGuide/shopping/repairGuide.htm?pageId=0900c152800b1cd7

Posted on Jan 04, 2009

  • 462 Answers

SOURCE: wheel noise or roar in front end with increased road speed

THIS NOISE IS USUALLY THE HUB. HAVE SOMEONE GO WITH YOU ON A TEST DRIVE. GET THE ROARING TO HAPPEN AT ITS LOUDEST AND GENTLY SWERVE THE CAR LEFT AND RIGHT. DON'T BE SURPRISED IF YOU THINK BOTH HUBS ARE BAD. LIFT THE FRONT OF THE CAR AND PUT IT ON JACK STANDS. PULL OUTWARD ON THE BOTTOM OF THE TIRE WHILE PUSHING INWARD ON THE TOP OF THE WHEEL. IF THE WHEEL MOVES EXCESSIVELY YOU FOUND THE HUB THAT IS NOISY. USING A MECHANICS STETHOSCOPE YOU CAN SOMETIMES HEAR A ROARING TYPE NOISE ON THE BACKING PLATE SIDE OF THE HUB WITH THE ENGINE RUNNING AND THE TRANS IN GEAR. TRY NOT TO GET THE SPEED UP TOO FAR ESPECIALLY IF YOU CAN HEAR THE NOISE AT LOW SPEED, YOU DON'T WANT TO VIBRATE OFF THE STANDS.

Posted on Jun 15, 2009

phc411
  • 1 Answer

SOURCE: where is pcv valve 1998 buick lesabre

Remove the sight shield from the fuel rail. (it's the large plastic shield that dresses up the engine) As you stand in front of the car the alternator is located on rear left side. In front of it is an electrical connector to the MAP sensor. Remove it. Press the PCV valve cover down and rotate it 1/4 turn counterclockwise. It is actully on the intake manifold. Lift the cover, the upper O-ring and the spring from the housing. Remove the pcv valve and the lower O-ring from the intake manifold.

Posted on Mar 23, 2010

cool78259
  • 228 Answers

SOURCE: 1995 buick lesabre getting a loud constant noise

You might just need a fan bellt or serpentine belt, get an empty spray bottle mix a small amount of
dish soap and water, spray on belt, then start your engine if the noise stops just replace your belt.,
if it does'nt it could be another pulley or the tensioner pulley, then i would suggest removing the belt
and spin each pulley to determine which one is making the noise. if it turns out to be the alternator, you
will have to replace the whole thing. they don't normally sell just the pulley, and even if you can get one
requires special equipment to pull it off, if needed just replace it and save yourself time and trouble.
plus parts normally come with some kind of warranty. good luck!

Posted on Aug 03, 2011

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Related Questions:

1 Answer

When I start , makes a clunck sound then after running theres a loud rattling noise what could be wrong with it ?


It depends on where the noise is coming from. Could be any engine part such as a valve, piston, or flywheel plate.

Aug 04, 2014 | 1995 Buick LeSabre

1 Answer

My 1990 buick Lesabre started making a loud clicking/ rattling noise yesterday and now it will not start. Then i turn the key it sounds like it wants to start but just doesnt turn over.


Sounds like the alternator. You might want to try seeing if the lights and radio have power. If not it is probably the alternator.

Sep 21, 2013 | 2000 Buick LeSabre

1 Answer

I have a bearing noise on start up, goes away within 20 seconds when idling down.


You may have an internal bearing issue, which will be less apparent once the oil pressure builds, after the first few seconds of running. Typically this is a camshaft bearing issue, but I'm sorry, I can't be certain without inspecting the vehicle.

Nov 14, 2012 | 1998 Buick LeSabre

1 Answer

Loud rattling sound top of engine near or below the alternator when idling, goes away if accelerator is pressed


Hello: Remove the serpentine belt, see if the waterpump pulley wobbles/makes noise when you spin it. If thats not it then start the engine, belt still off see if noise is there also while engine is running see if vthe crankshaft pulley wobbles. Also check the A/C compressor pulley (engine off, belt off) spin it by hand and check for noise and wobble. If all the previous is ok then it could be the balance shaft front bearing and or the timing chain.

Oct 18, 2011 | 1998 Buick LeSabre

1 Answer

Loud rattle noise started on cold start up but goes away.Now makes noise on/off throttle all the time.Sounds like cat internals or heat shield,inlaws have same car,same noise


Sounds like the Cat could be bad. Get under the vehicle and hit the cat with your hand. If it rattles then you know what your problem is, if it doesnt rattle then start check the belts and tensioners

Jun 22, 2011 | Suzuki XL7 Cars & Trucks

1 Answer

It sounds like a lifter i was told it was the harmonic balancer by several people i replaced it car stick making ticking noise and picks up speed slow


I am curious why they said harmonic balancer and you replaced it, there is a crank sensor near the harmonic balancer was it rattling or loose they have a tendency to get loose,the harmonic is the big main pulley when that breaks because it is vulcanized then yes it tick and your car looses power.You check sparkplugs for being loose and not being tighten up,check the air filter too,I am sticking with the Harmonic balancer this time remove the drive belt but dont do it too long or it will overheat just for 2 minutes maximum see if the noise goes away. 2 minutes only battery wont charge also

May 06, 2011 | 1998 Buick LeSabre

1 Answer

98 Ford Explorer engine/exhaust noise


When catalytic converters go bad, the porcelain matrix inside comes loose and is noisy.
But you can just unbolt it, break up the loose chunks, pour out the pieces, and it will run better than ever.
If you don't pass the next emissions test, then replace it.

But it could just be the heat shield rattling instead.
Take the shield off first, to see if it goes away.

Jan 03, 2010 | 1998 Ford Explorer

1 Answer

Engine Rattling


Try checking the heat shield on your exhaust system. You should have one over the manifold and one over your cat converter under the car.

Mar 25, 2009 | 1993 Oldsmobile Cutlass Ciera

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