It sounds like a rod knocking and now it wont start at al...

It sounds like a rod knocking and now it wont start at all Mechanic's Assistant: Where exactly do you think the noise is coming from? And how long has this been going on? Just happened and i think the sound is coming from...

It sounds like a rod knocking and now it wont start at all Mechanic's Assistant: Where exactly do you think the noise is coming from? And how long has this been going on? Just happened and i think the sound is coming from the motor Mechanic's Assistant: What is the make/model/year of your car? 2006 Buick lacrosse Mechanic's Assistant: Are you fixing your Lacrosse yourself? What have you tried so far? I haven't done anything yet trying to figure out what is wrong with it Mechanic's Assistant: Anything else you want the Mechanic to know before I connect you? The check engine light wasn't on then all of a sudden it came on

Automotive Expert
Hi, my name is\*\*\*\*\* to justanswer. I will be assisting you with your question today. I am sorry that you are having difficulties with your vehicle and will do my best to help you out. Have you had the opportunity to do any visual checks around the engine? Checked oil level, anti freeze, etc? Does this knocking noise speed up and slow down with throttle response? **\*\*As far as phone calls, If you didn't request it, it is most likely the Website prompting you, not me. A Live Call is a "Premium Service" and will cost more money. I prefer communicating via this site, but in some cases a phone call may be recommended\*\***

the knocking does speed up \*ü\*JessicaüNüChrisüNüKids\*ü\*it does speed up and slow down with the throttle response
Automotive Expert
Have you had a chance to check for codes?

What is that \*ü\*JessicaüNüChrisüNüKids\*ü\*
Automotive Expert
You said the check engine light came on. An electronic scanner would be used to retrieve codes from the vehicles computer to help diagnose the problem.

No I haven't done that \*ü\*JessicaüNüChrisüNüKids\*ü\*
Automotive Expert
I would also check and see how much motor oil is in the engine. To me it sounds like the motor had an internal failure and is not operable.

will I have to replace the whole motor \*ü\*JessicaüNüChrisüNüKids\*ü\*
Automotive Expert
If it is something like crankshaft bearing failure or piston and connecting rod failure, yes, it would usually require an engine replacement.

alright thank u
Automotive Expert
You are very welcome! Best of luck with your repair, and thanks for using justanswer.

how would i be able to tell if i need to replace the whole motor
Automotive Expert
I would get a mechanic or mechanically inclined person to take a look and verify what I have suggested and go from there.

alright thanks
Automotive Expert
Have a good night.

u too
Automotive Expert

ur welcome
Automotive Expert
thanks for using justanswer.

What others are asking

What do I do if the engine in my Honda Civic overheats?
Overheating is a very serious situation. Too much heat could severely damage your engine. If the needle of your temperature gauge is pushing into the red, here’s what you need to do: Find a safe place to pull over. Put...
How do I clean the rearview mirror?
The rearview mirror can be easily damaged. Never use glass cleaner on the mirror, and do not spray a cleaning solution directly on the mirror. Instead, dampen a very soft towel with water, and lightly clean the mirror with that....
Car engine shakes when in idle or Drive
Hello. I am assuming that your motor mounts are collapsed since there is no Check Engine Light on.
Where is thermostat located in 2006 DTS
The thermostat is located inside the water outlet housing fastened to the upper radiator hose. The thermostat is on the engine side of the hose. If you need some help with this repair, consider hiring one of our mobile experts...
Brake pads - replacing them voids warranty?
They probably quoted you the price "per axle" - meaning $320-$400 for front and $320-$400 for rear. Brakes are always replace per axle - meaning front or rear. You never just replace one side only. Replacing brake pads with non-Infiniti...
My engine keeps shutting off what is the problem?
Hello. Your symptoms lead me to believe there is an issue with the charging system. If the battery is dead when the vehicle stalls, it means it is either not holding a charge, or the alternator is not generating energy...
Transmission problem
Of course, be sure the transmission fluid level is correct, the fluid is not contaminated and the filter is not clogged. A fault like the one you are describing is likely to be due to a hydraulic control issue. If...
I have Chevrolet Epica ls 2010 automatic 6 cylinder car. I want to change gearbox. Please tell me which car model's gearbox will fit to my car.
The gearbox (transmission) that is in your vehicle will fit the years 2007 through 2010 from the Epica, Daewoo, and Tosca. They all have the same manual 5 speed transmission.
I removed my check engine light and now the car won’t go why did this happen
Hi Francesco. Thanks for contacting us today. As you probably know, when a check engine light illuminates, it's due to an OBD-II trouble code being created and is stored in the ECU. If the code is cleared and the issue...