Car Questions
RepairPal is your advocate for car care advice and guidance

Loud rattle noise from engine on cold start

(2010 Acura TL)
in Spring Grove, PA on March 02, 2012
When I start the car and begin to accelerate, the engine (maybe) has a loud rattle noise like it is "trying" to work. Once it gets to third gear, the noise goes away. This only happens on a cold start, not when I am stopped at a traffic light or such. I have had it to two different Acura dealerships and have had $3K repairs done but the noise is still there. If I take it to other shops, nothing comes up on the diagnostic test. It sounds horrible and is embarrassing. This started at around 69K miles. PLEASE HELP! I do not want to be screwed out of more $$$ by Acura!
Displaying 3 answers & 1 comments
Popular Answer
on June 22, 2013
Exhaust sheild loose remove plastic engine guard and hose clamp exhaust shield up were it goes into manifold so it doesn't rattle. Rattle noise goes away when the exhaust shield expands, gets hot,and your inside the car so its quiet but faint. I hope this is your problem 10 minute fix on the hoist at any muffler shop.
Has the engine had frequent engine oil and filter changes and what is the mileage is on the car now? When this noise occurs does the oil light stay on or go off. My first fear would be bad connecting rod bearings.It's hard to comment on a noise without being able to hear the noise first hand. When you have had the previous work done did yo point out the noise to the person working on the car and what did they say when the noise reoccurred?
on March 02, 2012
I have always followed the recommended oil changes with synthetic oil. The car currently has 91K miles. The oil light does not come on. The noise is very obvious and the technician can hear it. The noise has been intermittent. Weeks can go by and I won't hear the noise but, like this week, the noise is back and very loud. I have brought it to independent shops who tell me they cannot diagnose the problem if there is not a diagnostic code on the car computer and recommend I take it to a transmission shop or back to the dealer.
on May 07, 2013
I have the same problem!
Get a repair estimate
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide.
Or interested in getting a repair? Find a Shop

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
My engine is making a loud mettalic rattling noise but,there is no loss of power whatsoever from idle through hard ac...
When i start car, exhaust very loud and even while i sit idle, it rattles and has tin like sound when accelerating. i...
Didn't find what you were looking for?