Could knocking in engine be a major problem?


Asked by Nov 09, 2015 at 03:29 PM about the 2006 Acura TL

Question type: Maintenance & Repair

We have an 2006 acura tl that we have had two transmissions replaced in. The
car has started making a loud knocking noise which we thought was from the
crank shaft pully but that was not the case. The noise has gotten louder over
the past few months. Any reccomendations on possibly pointing out the

5 Answers


If it runs well it could be piston slap. The piston wobbling inside the combustion chamber from worn rings, bearing or wrist-pin, that can happen and not affect performance.... for a while....until something breaks. If you have a noticeable lack of power it could be a rod thrown and it will not go much farther. Surprising, that Acura is a high-end car and a 2006 is rare for that to happen unless oil changes have been neglected

2 out of 2 people think this is helpful.

your best bet would be remove the serpintine belt, this rules out anything that is drivin by the belt, If you start the engine and it knocks, and if you rev the engine slightly and the knock gets faster chances are you have a rod knock. This is not good and usualy ends up in a engine change.

3 out of 3 people think this is helpful.

Thank you for your input and I only pray and hope it is nothing major. Sad to say that this would be a great car if we hadn't had so many problems with it.

1 out of 1 people think this is helpful.

Did the noise coincide with the transmission change? If so maybe the flywheel or the torque converter have loose bolts.

2 out of 2 people think this is helpful.

The noise did start with the transmission change, yes

Your Answer

Add photo

Related Questions


Looking for a Used TL in your area?

CarGurus has 7,022 nationwide TL listings starting at $2,395.


Search Acura TL Questions

Acura TL Experts

#1 miraclemike
Reputation 880
#2 cherryscar
Reputation 590
#3 darkoM
Reputation 580
View All

Related Models For Sale

Used Honda Accord"
1,263 Great Deals out of 78,694 listings starting at $1,400
Used Acura TSX"
182 Great Deals out of 3,870 listings starting at $2,950
Used Honda Civic"
1,148 Great Deals out of 59,092 listings starting at $995
Used Nissan Maxima"
496 Great Deals out of 24,224 listings starting at $1,500
Used Acura MDX"
499 Great Deals out of 15,608 listings starting at $1,999
Used BMW 3 Series"
1,615 Great Deals out of 39,618 listings starting at $888
Used Infiniti G35"
119 Great Deals out of 3,947 listings starting at $2,499
Used Toyota Camry"
1,608 Great Deals out of 98,371 listings starting at $895
Used Lexus IS 250"
356 Great Deals out of 6,043 listings starting at $4,494
Used Acura RL"
28 Great Deals out of 829 listings starting at $2,999
Used BMW 5 Series"
640 Great Deals out of 18,796 listings starting at $1,500
Used Dodge Charger"
646 Great Deals out of 29,674 listings starting at $2,275
Used Nissan Altima"
1,360 Great Deals out of 87,464 listings starting at $1,095

Used Cars For Sale

2014 Acura TL For Sale
16 Great Deals out of 261 listings starting at $15,998
2013 Acura TL For Sale
50 Great Deals out of 971 listings starting at $12,995
2012 Acura TL For Sale
55 Great Deals out of 990 listings starting at $10,950
2011 Acura TL For Sale
7 Great Deals out of 187 listings starting at $9,000
2010 Acura TL For Sale
25 Great Deals out of 625 listings starting at $9,499