Sonata noise at start up

[BigBuck]

Hey guys. My car has been making a strange noise at start up. It has never made noises before, and it is just now happening after it is off for a while, and the temperature is 20-35 degrees (F).

Any ideas on what it could be? It kind of sounds like somethings winding up I guess? If I had to explain it. Lasts for about 5-7 seconds, then goes away.

Should I change my oil filter? Maybe a bad P1 or the flow isnt good enough to lubricate quick enough? Like I said, it just started happening.

Thanks guys!

 

[tig1]

I would try a filter change first.

 

[aquariuscsm]

What oil are you running? Did you notice the noise after changing brands/weights?

 

[browning300wsm]

ur heater fan could be obstructed with leaves..

 

[oggb]

Probably a faulty ADBV in the filter. Change your filter out with another one, top the oil back off, and see if that helps.

 

[EricF]

Kinda sounds like the oil's just to cold & isn't flowing fast enough yet.. 7-10 seconds isn't all to bad, hope you're running a 5w30.
But if anything.. swap the oil filter first. It can only help.

 

[parimento1]

starter sticking??

 

[BigBuck]

Oil and filter are in the sig.
It's Quaker State synthetic 5w30. Noise didn't happen tonight, but I'll check again tomorrow and if it remains I will switch over to another filter.
If it is the filter, is the lack of oil causing any significant damage to my engine?

 

[Hokiefyd]

Originally Posted By: parimento1
starter sticking??


That's my guess. 5-7 seconds of a "wind up" noise doesn't sound like a lubrication problem.

 

[KrisZ]

Originally Posted By: Hokiefyd
Originally Posted By: parimento1
starter sticking??


That's my guess. 5-7 seconds of a "wind up" noise doesn't sound like a lubrication problem.


My thoughts as well, problems with lubricating system usually have tapping, knocking sounds, not winding up.

Could also be a tensioner bearing or belt noise due to cold temps or humidity.

 

[BigBuck]

What do you mean by the starter is sticking?

What is something I could do if the starter is sticking?

 

[Hokiefyd]

Originally Posted By: BigBuck
What do you mean by the starter is sticking?

What is something I could do if the starter is sticking?


Sometimes, the starter Bendix or solenoid can stick in the open position, or be slow to retract after you let go of the key. So while the starter motor isn't necessarily spinning, the starter gear on the Bendix clutch doesn't disengage from the flywheel quickly and that can sound like a "zinging" sound. These can sometimes be greased back into compliance.

Another thought is it may be an emissions pump or purging solenoid or something else that gets louder with cold temperatures.

 

[BigBuck]

I asked a service advisor here at the dealership I work at.
He said it might be the power steering. This makes sense as I have Lucas power steering fluid in there.... The really thick stuff. I might change that out and see if there is a difference. Opinions?

 

[Sayjac]

So the noise's start coincided with the cold snap we've had? Been unsually cold.

5-7 seconds? Why not let a mech/tech listen? Personally, when it comes to diagnosis, don't have much faith in service writers.

Or, get an inexpensive stethoscope.

 

[Propflux01]

Originally Posted By: BigBuck
I asked a service advisor here at the dealership I work at.
He said it might be the power steering. This makes sense as I have Lucas power steering fluid in there.... The really thick stuff. I might change that out and see if there is a difference. Opinions?


Drain/flush That junk out and put the normal power steering fluid in it before you kill that pump!

 

[BigBuck]

Originally Posted By: sayjac
So the noise's start coincided with the cold snap we've had? Been unsually cold.

5-7 seconds? Why not let a mech/tech listen? Personally, when it comes to diagnosis, don't have much faith in service writers.

Or, get an inexpensive stethoscope.



I asked the advisor who was a tech for 10 years. He is a good guy.
I popped the hood tonight and the noise was coming from the P/S pump. I guess I am gonna get that fluid out.

 

[KrisZ]

Originally Posted By: BigBuck
I asked a service advisor here at the dealership I work at.
He said it might be the power steering. This makes sense as I have Lucas power steering fluid in there.... The really thick stuff. I might change that out and see if there is a difference. Opinions?



Get this stuff out, you can use Lucas on some old, worn out pumps as a band aid, but on your car it has no place.

Get proper power steering fluid and if your car calls for ATF as your power steering fluid, get some synthetic ATF, your pump will be dead quiet during cold snaps.

 

[demarpaint]

A trained ear could have made that diagnosis in seconds, which the writer did. He probably had more of a technical background than 99% of the writers I ever worked with did. Anyway, I would do a turkey baster fluid exchange with the proper PS fluid. If the fluid is very dirty, and the sound doesn't improve you can add about 6 ounces of MMO to it, run it about 200-300 miles and repeat the turkey baster exchange. It silenced a noisy 190,000 mile + Ford PS pump for me.

 

[Barkleymut]

+1 on the turkey baster replacement of the PS fluid. This is possibly the easiest/cheapest preventative maintenance you can do on a car. Do it 3 days in a row (assuming you drive the car all 3 days) and you will have 95% of that junk out and she will sound perfect again.