2019 R, possible oil pump noise.

Alain

Well-Known Member
Joined
Jan 24, 2018
Posts
649
Reaction score
266
Location
Northern NJ
First Name
Alain
Vehicle(s)
2016 Challenger Hellcat B5 Blue/ 2018 ZL1 1LE Pull Me Over Red/ 2019 350R Oxford White, Black Stripes, CF Dash, Tech Package #413
Ok guys, here we go. Car has 1500 miles on it. It had been sitting for about 3 weeks, started it and drove to the gym (35 minute drive).
was cold (60 degrees) so I took it easy l, as I always do, until the oil gets to 190 degrees

car drove fine. After the gym, I went to Home Depot, a 10 minute drive, car drove fine. From Home Depot I went across the highway to another store (5 minute drive). When I got there I left the car running and went Inside. I was inside for about 10 minutes. I came out and the car was making this noise.

sounds like it was coming from the driver side, towards the lower portion of the engine bay.

i didnt smell anything weird, the oil pressure was normal at idle (33-35 PSI) the heat gauge was normal.
I shut it off, restarted it and the noise was gone. left the store and listened for weird noises, nothing. Car drove fine, I got on it hard on the way home, drove just fine.

I am baffled, hoping someone on here has come across a similar scenario and can shed some light on this.
oil level as dropped since I changed the oil at 500 miles, it went from full on the dipstick to just a little below half in 1000 miles. i wasn’t concerned about it until now.
I really don’t want to bring it to the dealership unless I absolutely have to.
thank you for your input fellers.

does this sound like a bad oil pump ? That is my concern, I find it hard to believe that one of the belts is making this noise.



 
Last edited:
OP
Alain

Alain

Well-Known Member
Joined
Jan 24, 2018
Posts
649
Reaction score
266
Location
Northern NJ
First Name
Alain
Vehicle(s)
2016 Challenger Hellcat B5 Blue/ 2018 ZL1 1LE Pull Me Over Red/ 2019 350R Oxford White, Black Stripes, CF Dash, Tech Package #413
  • Thread starter
  • Thread Starter
  • #2
my current plan is to stop by the dealership tomorrow, show them the video and have them change the oil and inspect it for metal shavings.
 

GreenS550

Well-Known Member
Joined
Nov 18, 2017
Posts
1,403
Reaction score
606
Location
Houghton, MI 49931
First Name
Bob
Vehicle(s)
2019 Mustang Bullitt K3107 Whipple 2018 Mustang GT Premium A10 Ruby Red
Sounds like a good idea. You must still be under warranty?
 

JAJ

Well-Known Member
Joined
Apr 9, 2016
Posts
1,248
Reaction score
855
Location
Vancouver BC
Vehicle(s)
2016 GT350 Track Pack
Ok guys, here we go. Car has 1500 miles on it. It had been sitting for about 3 weeks, started it and drove to the gym (35 minute drive).
was cold (60 degrees) so I took it easy l, as I always do, until the oil gets to 190 degrees

car drove fine. After the gym, I went to Home Depot, a 10 minute drive, car drove fine. From Home Depot I went across the highway to another store (5 minute drive). When I got there I left the car running and went Inside. I was inside for about 10 minutes. I came out and the car was making this noise.

sounds like it was coming from the driver side, towards the lower portion of the engine bay.

i didnt smell anything weird, the oil pressure was normal at idle (33-35 PSI) the heat gauge was normal.
I shut it off, restarted it and the noise was gone. left the store and listened for weird noises, nothing. Car drove fine, I got on it hard on the way home, drove just fine.

I am baffled, hoping someone on here has come across a similar scenario and can shed some light on this.
oil level as dropped since I changed the oil at 500 miles, it went from full on the dipstick to just a little below half in 1000 miles. i wasn’t concerned about it until now.
I really don’t want to bring it to the dealership unless I absolutely have to.
thank you for your input fellers.

does this sound like a bad oil pump ? That is my concern, I find it hard to believe that one of the belts is making this noise.


I don't think that the oil pump has the ability to make a noise like that - it has no bearings in it, and the noise sounds like a failing bearing to me.

If I had to guess, I'd say it's the AC compressor making the noise. Right place, right noise.
 

GreenS550

Well-Known Member
Joined
Nov 18, 2017
Posts
1,403
Reaction score
606
Location
Houghton, MI 49931
First Name
Bob
Vehicle(s)
2019 Mustang Bullitt K3107 Whipple 2018 Mustang GT Premium A10 Ruby Red
I don't think that the oil pump has the ability to make a noise like that - it has no bearings in it, and the noise sounds like a failing bearing to me.

If I had to guess, I'd say it's the AC compressor making the noise. Right place, right noise.
Yes, makes sense. In my '18 5.0 the alternator is on the DR side low. Similar type of sound. If so, they won't have to crack the engine.
 
OP
Alain

Alain

Well-Known Member
Joined
Jan 24, 2018
Posts
649
Reaction score
266
Location
Northern NJ
First Name
Alain
Vehicle(s)
2016 Challenger Hellcat B5 Blue/ 2018 ZL1 1LE Pull Me Over Red/ 2019 350R Oxford White, Black Stripes, CF Dash, Tech Package #413
  • Thread starter
  • Thread Starter
  • #6
The noise seemed to be coming right from where the alternator is located. I have to confess, I went into a panic when I came out of the store and heard the car making that noise.

I quickly took the video to document it and turned the car off before really looking into where the noise was coming from. as you can see in the video, the noise seems more pronounced when I put the phone next to the driver‘s side front wheel.

I agree that it sounds like a failing bearing of some sort. I am praying that it’s the alternator. The alternator is right there.

the AC compressor is on the opposite side of the motor So I dont think it’s that.

what concerns me is that when I researched ”failing oil pump” some of the results said the motor would make ”a loud whining or whirring sound”. That is exactly what I’m hearing here............ or am I wrong?
 

BlackandBlue

Well-Known Member
Joined
Jun 27, 2019
Posts
1,473
Reaction score
1,027
Location
Southeast
First Name
Jay
Vehicle(s)
2018 GT 10 Gear
That sounds like a bearing from an accessory. Normally when internal bearing are going south you can’t hear the high pitched end of the squealing. It’s hard to tell over video but if it stopped and started again I wouldn’t worry to much. Internal bearing failures generally don’t go away.
 
OP
Alain

Alain

Well-Known Member
Joined
Jan 24, 2018
Posts
649
Reaction score
266
Location
Northern NJ
First Name
Alain
Vehicle(s)
2016 Challenger Hellcat B5 Blue/ 2018 ZL1 1LE Pull Me Over Red/ 2019 350R Oxford White, Black Stripes, CF Dash, Tech Package #413
  • Thread starter
  • Thread Starter
  • #8
Would an alternator make that noise if the car is not being used enough?

i Bought thw car brand new last September. Yes, I’m still under warranty but im the kind of guy that doesnt want the dealership touching my car unless they absolutely have to.
 

JAJ

Well-Known Member
Joined
Apr 9, 2016
Posts
1,248
Reaction score
855
Location
Vancouver BC
Vehicle(s)
2016 GT350 Track Pack
Would an alternator make that noise if the car is not being used enough?

i Bought thw car brand new last September. Yes, I’m still under warranty but im the kind of guy that doesnt want the dealership touching my car unless they absolutely have to.
Sorry! For some reason I had the impression the noise was on the pax side, but if it's driver's side, then it's either the idler pulley, the belt tensioner or the alternator. That's what the sound reminds me of - my daughter's Focus just had the tensioner replaced for just that kind of sound.

Here's the belt path, with the candidates being 2, 7 or 8:

1603053229481.png
 

GreenS550

Well-Known Member
Joined
Nov 18, 2017
Posts
1,403
Reaction score
606
Location
Houghton, MI 49931
First Name
Bob
Vehicle(s)
2019 Mustang Bullitt K3107 Whipple 2018 Mustang GT Premium A10 Ruby Red
I have an easy way for you to check this out. Get yourself a 15 mm socket and take the belt off . All you have to do to get the belt off is release tension on the tensioner with a breaker bar and a 15 mm socket. once you take the belt off start the car up and see if the noise is still going on . The oil pump would be turning but the alternator wouldn't. On the 5.0, the air conditioning belt is a separate belt. So it's easy just to take your big serpentine off and then start the car up and see what happens.
 

honeybadger

Just don't care
Joined
Apr 20, 2016
Posts
2,502
Reaction score
3,531
Location
Texas
First Name
Kevin
Vehicle(s)
'17 GT350, '17 Raptor
I have an easy way for you to check this out. Get yourself a 15 mm socket and take the belt off . All you have to do to get the belt off is release tension on the tensioner with a breaker bar and a 15 mm socket. once you take the belt off start the car up and see if the noise is still going on . The oil pump would be turning but the alternator wouldn't. On the 5.0, the air conditioning belt is a separate belt. So it's easy just to take your big serpentine off and then start the car up and see what happens.
This is good advice. I diagnosed a bad water pump this way. And agreed with the other. Definitely not the oil pump - that’s at the front. If removing the belt doesn’t change it, it might be related to the flywheel. But agreed, sounds like a pulley
 
OP
Alain

Alain

Well-Known Member
Joined
Jan 24, 2018
Posts
649
Reaction score
266
Location
Northern NJ
First Name
Alain
Vehicle(s)
2016 Challenger Hellcat B5 Blue/ 2018 ZL1 1LE Pull Me Over Red/ 2019 350R Oxford White, Black Stripes, CF Dash, Tech Package #413
  • Thread starter
  • Thread Starter
  • #12
I have an easy way for you to check this out. Get yourself a 15 mm socket and take the belt off . All you have to do to get the belt off is release tension on the tensioner with a breaker bar and a 15 mm socket. once you take the belt off start the car up and see if the noise is still going on . The oil pump would be turning but the alternator wouldn't. On the 5.0, the air conditioning belt is a separate belt. So it's easy just to take your big serpentine off and then start the car up and see what happens.
This is good advice. I diagnosed a bad water pump this way. And agreed with the other. Definitely not the oil pump - that’s at the front. If removing the belt doesn’t change it, it might be related to the flywheel. But agreed, sounds like a pulley
fellers, the car hasn’t made the noise since then.
so disconnecting the pulleys won’t do me any good.
 

GreenS550

Well-Known Member
Joined
Nov 18, 2017
Posts
1,403
Reaction score
606
Location
Houghton, MI 49931
First Name
Bob
Vehicle(s)
2019 Mustang Bullitt K3107 Whipple 2018 Mustang GT Premium A10 Ruby Red
Then my guess is it's almost certainly the alternator or water pump or something like that. I can't imagine the oil pump all of a sudden quiet
 

BlackandBlue

Well-Known Member
Joined
Jun 27, 2019
Posts
1,473
Reaction score
1,027
Location
Southeast
First Name
Jay
Vehicle(s)
2018 GT 10 Gear
My vote is for the idler. If you take the belt off you can just turn them to find out which one it is. A bad bearing should be notchy when turned.

Also before you take the belt off turn the A/C on and off to see if it has any effect on the noise.
 
Last edited:
OP
Alain

Alain

Well-Known Member
Joined
Jan 24, 2018
Posts
649
Reaction score
266
Location
Northern NJ
First Name
Alain
Vehicle(s)
2016 Challenger Hellcat B5 Blue/ 2018 ZL1 1LE Pull Me Over Red/ 2019 350R Oxford White, Black Stripes, CF Dash, Tech Package #413
  • Thread starter
  • Thread Starter
  • #15
My vote is for the idler. If you take the belt off you can just turn them to find out which one it is. A bad bearing should be notchy when turned.

Also before you take the belt off turn the A/C on and off to see if it has any effect on the noise.
Before I restarted the car I turned the AC on and off to check that the AC compressor wasn’t the issue (knowing these cars have issues with AC compressors). While I was driving home after this incident I had the AC ON to check for strange noises.......nothing. Since then, I’ve had the AC and heat on and the noise hasn’t come back.

I might take off the belts and turn the pulleys by hand to make sure the bearings are good.

since the car hasn’t made the noise again, this is the only diagnostic step I have left.
unless any of you have a better alternative.
 
 
202 - CarModsAmerica - 1
Top