Hi guys,
When I start my car, there's a weird noise coming from the exhaust, then it disappears, but as soon as I switch on the A/C it comes back and it stays on as long as I'm driving, unless I speed or switch off the A/C.
What is causing this sound?
and is this a problem?
if yes, what should I do to fix it?
Thanks,
Aymen
Could be turbocharger or exhaust pipe clogged with ash from exhaust smoke. In any case, service is paramount.
SOURCE: I had my distributor replaced
sounds like your timimg is off either by a tooth or at least a few degrees, does it make a rattling sound when you come on to the fuel hard? Also check to see if your coolant level is going down if so you could have a bad head gasket.
SOURCE: Weird car experience
fit new exhaust ,its rotted away in the internal tube in silencer and now the fibre wool is coming out.dont you have an anual roadworthyness check where you live??
SOURCE: While driving; the vehicle runs fine and all of a
ignition switch elecrical part of it is bad change it will take care of it
SOURCE: 2000 GMC SIERRA 2500 LIFTER NOISE
Try a cup of tranny fluid, Dextron, or whatever, in the crankcase. Or there are lots of lifter products at your local part store. I would certainly try that first. I assume your oil has been changed recently, and the level is good. You don't have to pull the heads, but you do have to remove the intake, and valve covers.
SOURCE: My Denali is making a weird screeching/grinding
If it is screeching while driving and not when the brakes are applied it's the "sensor" that is designed to provide warning when the brake pads need to be changed.
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The weird noise, is like a Buzzing sound of metal, that comes when I first start the car and then disappears, but always come when I start the A/C.
Hope I clarified it enough!
Thanks
Describe the weird noise.
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