sounds like you ac compressor is about to crap out.
Heat shields often corrode and become loose but they usually cause a tinny rattling sound. Eventually they fall off as witnessed by the dozens of them found along highways. Mechanics often remove them (with your permission) if they are loose, because they serve no purpose other than to protect the technician from a very hot catalytic converter that he/she knows not to touch anyway. A "knocking" sound, however, is more likely caused by a worn or broken exhaust hanger, allowing the exhaust system to bump the underside of the vehicle. Be sure the engine isn't causing the knocking sound, driving around a car with a knocking sound in the engine can cause MAJOR damage. Knocking from your undercarriage can also be caused by suspension components that have gone bad or are leaking fluid.
The Hummer H2 is a 2005 SUT with the 6.0L Vortec and a Magna Charger supercharger. It runs great with plenty of power, but I'm concerned about some noise I'm getting out of it. When I first start it up, everything sounds fine. After running a mile or so, I start to get a knocking sound. I only notice the sound when idling, not when running.
Perhaps a worn CV joint (usually more of a clicking sound when turning), but there are many components in the front end of a motor vehicle that could cause a knocking (or similar) sound, including suspension components, brakes, steering components and bearings. Worn tie rods, by the way, do not normally cause a knocking sound, but result in very loose feeling steering and noticeable drift, especially at highway speeds. A knocking sound is more likely to be an engine problem, such as pre-ignition. If you are not accustomed to diagnosing these sounds, you will best best off to see a qualified mechanic, or a friend who is more familiar with the front-end components of a motor vehicle.
What is the closest us capital to Canada?
What is 8 divided by 2(2 plus 2)?
Give me food and I will live give me water and I will die what am I?
What's the most outdated thing you still use today?
How old is Pamela McCoy of ShopNBC?
Who would you swap lives with for a day?
What does program mean in brain teaser?
If you are 49 years old what year did I graduate from high school?
Can you get sunburned in the shade?
What are the dog days of summer?
What is the toughest academic course according to the Guinness Book of World Records 2011?
Why do so many foods "taste like chicken"?
Who invented Lincoln Logs?
How did chickenpox get its name?
What is doomscrolling?
How did the Wiffle Ball get its name?
What investment is necessary for a yield of 500 dollars per month at 6 percent interest?
When two pieces of cui or other unclassified information are posted online together?
How do you transulate happy independence day in konkani language?
How many ODD DAYS IN DECADE?
Ano ang mga salik sa pagkakaroon ng Bilinggwalismo?
What is the meaning of the poem TO A LOVELY WOMAN To A Lovely Woman Angela Manalang-Gloria Shall I compare you to a rainbowed shower Drawing to earth the very arc of dream Or shall I say you are an or?
Ano ang pagkakapareho ng panitikan at kasaysayan?
WHAT IS THE EXPECTATION ON THE SUBJECT NSTP AND TO THE INSTRUCTOR AND CLASSMATE?
Copyright © 2020 Multiply Media, LLC. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply.