Have a 2006 Mazda 3 MPS with a very lound and consistent thump/bang.Any help or assistance appreciated.
3 reputable mechanics including 1 Mazda rep and some thousands of dollars later the thump remaind. In the last month have replaced tyres, wheel alignments, new shock absorbers front & rear, new sway bar bushes, new strut bearings/plates and new mounting strut top & thrust bearing. No improvement noticed.
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I have not received a response as yet.
Welcome to Just Answer. My name is XXXXX XXXXX X will be glad to assist you.Hello and sorry for the delay. I hope I am wrong and someone didn't take all that money from you because of lack of knowledge!!!If the thump/bang only happens one time after the vehicle is started and driven the first 10 seconds and never happens while, then that is normal. It is the ABS/HCU running a self test after the vehicle reaches 10mph after the vehicle is first started and driven every time. This is normal and there is no repair for the normal ABS self test noise. Please let me know if you have any additional questions by hitting the reply button. ThanksDrewDrew(supermazdatech)41106.1864161227
No the banging is continual on all road surfaces and at all speeds. But is not at a consistent speed, configuration/weight or attitude/cornering/straight line. The mechanics who have worked on the vehicle all acknowledge that the noise is there during subsequent road tests.
Correct me if I'm wrong, you can hear the noise at 5mph going straight, 20mph going straight and same noise at 70mph. Noise stays the same at every speed. All road types flat, smooth or rough, the noise is the same. 1. Have you had it to a Mazda dealer or all aftermarket shops?2. Can you tell if the noise is coming from the front, center or rear of the vehicle??3. Can you shut the engine off and coast at 30mph and still hear the noise?4. Can you raise the front of the vehicle off the ground on jack stands and duplicate the noise??5. Have you inspected all the heat shields around the exhaust and gas tank? I have had several make a flapping noise on windy crosswind days or above 50mph. 6. Are all the plastic under engine covers installed and secured properly?ThanksDrew
I repeat all road surfaces, all vehicle speeds.
Responses in numerical order are: (1) Mazda, KMart, Repco (Royal Automobile Club Queensland) authorised repairer. (2) Front most predominately the left hand passenger side (3) Never tried it (4) Yes. Noise disappears when sway bar is disconnected. (5) Yes, on numerous occassions (6) Yes, also checked on numerous occassions.
I probably seem to sound a bit cynical but I have answered these questions with many "reputable" mechanics.
Do you have anymore ideas?
Since the noise goes away when the sway bar is disconnected, I suspect that you have faulty sway bar link ends. I see that you replaced the bushings (which are the rubber pieces that bolt the sway bar to the frame) but the links on the ends that attach to the struts will need to be replace. ThanksDrew
#1 Rated JA Mazda EXPERT, L1 Advanced ASE Master, 18yrs exp.