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Old 03 Nov 2011, 03:01 am
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Join Date: Nov 2011
Posts: 2
Default Desperatly looking for helpful advise for my Honda Civic (2007) 1.8 liters ,automatic drive?

I have just modified a tyre in this car of mine, recently i had changed my all four tyre's and added new tyre's and 17 inches rims (original size of the car rims was 15 inches before) later when i was driving on the humps (speed breaker) my car use to give a metal sound i think the tyre use to touch the above part of the car i could see and feel the the tire too ,,now after taking my car to the garage the mechanic advise me to put a rubber (bush)in the bottom of the springs (suspension) i did as per his advise,,, 24 hrs later when i started the car it gives a very powerful sound only in neutral and reverse (sounds like i have just started a 8 cylinder sports car heavy and powerful sound) but when i am driving in the drive mode the car sounds normal like 1.8 size engine

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adding to the above comments i was advise by the mechanic to put a normal rubber (bush) at the bottom of the suspension spring it did work actually but the fact that it actually brought the car level high so the tyre would not touch the upper layer of the car at times when i pass by the speed breaker

but my real concern is why does my car sound heavy like 8 cylinder sports car at the time when my car is in neutral or when i reverse but when i move forward on drive mode the sound its back to normal again ,,, i think my mechanic misplaced something here at the time fitting my car during the process i even saw him removing and again putting in the small barrel of the suspension ,,Guys looking for your valuable suggestion and advise
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Old 03 Nov 2011, 03:16 am
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Join Date: Aug 2007
Posts: 1,338

you need to check to see if the exhaust system or heat shields was affected by the change in ride height. from your description, it sounds like the exhaust system is grounding out (contacting) on the body when the the engine torques in neutral or reverse. either that or a heat shield for the catalytic converter or exhaust manifold may have broken a rivet allowing the sheid to move or vibrate when the engine torques (moves) in reverse or neutral.

you also want to check your motor mounts as they can allow the engine to move too much under torque and that can cause a properly aligned exhaust system to contact the body to cause the noise your report.

those are the most likely causes of your new noises.

hope that helps
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