Delta00's 2002 Tacoma 4WD

Go Back   Tacoma World Forums > Tacoma Discussion > 2nd Gen. Tacomas

Notices

Strange Cranking/Grinding Sound From Engine

Reply
 
Thread Tools Search this Thread
Old 04-10-2015, 12:36 PM   #1
MrCrobb [OP] MrCrobb is offline
Junior Member
MrCrobb is on a distinguished road
EMS: EMT
Name: Connor
Joined: Feb 2015, #149083
Location: San Diego/San Jose
Gender: Male
Posts: 10
MrCrobb's Tacoma Gallery
Strange Cranking/Grinding Sound From Engine

Hey Guys,

Let me first say that TW is the best.. Anyway, I have a 2006 4.0LV6 dc/sb Sport PreRunner. I recently crossed the 125K mile mark, and I just finished up with a bunch of maintenance. Recently I've noticed a cranking/rattling noise coming from the engine when I'm idling and sometimes when I'm accelerating. It doesn't seem to be coming from the belt or the fan. I think it's coming from the motor located below the engine oil filter. Do you guys have any idea what this might be? I took the truck in to a couple places, but they all want to charge me like 100$ for a full engine diagnostic test. None of the mechanics were willing to just take a quick look at my engine and offer some advice or an estimate. Any advice would be absolutely awesome!

(I attached some pictures to give you guys an idea of what I'm talking about)
Oh, and also, this is definitely not the "Taco Tick"

EDIT: Added Recording
Attached Thumbnails
Strange Cranking/Grinding Sound From Engine-img_3157.jpg   Strange Cranking/Grinding Sound From Engine-img_3158.jpg   Strange Cranking/Grinding Sound From Engine-img_3160.jpg  
Attached Files
File Type: mp3 20150410-140557.mp3 (117.8 KB, 59 views)
  Reply With Quote
Old 04-10-2015, 12:51 PM   #2
Member
BazzokaJoe is on a distinguished road
Royal Canadian Air Force: 425 ETAC
Name: Olivier
Joined: Jan 2014, #120353
Location: Canada,QC
Gender: Male
Posts: 61
BazzokaJoe's Tacoma Gallery
the "motor" in question is the alternator could be a bad bearing or the pulley is miss aligned do you have the batteries light in your dash ?
  Reply With Quote
Old 04-10-2015, 12:55 PM   #3
MrCrobb [OP] MrCrobb is offline
Junior Member
MrCrobb is on a distinguished road
EMS: EMT
Name: Connor
Joined: Feb 2015, #149083
Location: San Diego/San Jose
Gender: Male
Posts: 10
MrCrobb's Tacoma Gallery
No battery light, but i just put in a new battery a few weeks ago because the old one died... So maybe the alternator was to blame for that too
  Reply With Quote
Old 04-10-2015, 12:56 PM   #4
Member
BazzokaJoe is on a distinguished road
Royal Canadian Air Force: 425 ETAC
Name: Olivier
Joined: Jan 2014, #120353
Location: Canada,QC
Gender: Male
Posts: 61
BazzokaJoe's Tacoma Gallery
how hold was the battery ? have the alternator check to see if it output the good voltage/amp
  Reply With Quote
Old 04-10-2015, 01:17 PM   #5
MrCrobb [OP] MrCrobb is offline
Junior Member
MrCrobb is on a distinguished road
EMS: EMT
Name: Connor
Joined: Feb 2015, #149083
Location: San Diego/San Jose
Gender: Male
Posts: 10
MrCrobb's Tacoma Gallery
The battery was fairly old, it had about 3 years of use. But ya that sounds like a good idea, I'll have the alternator checked out soon. Do you think the alternator could make the cranking noise I'm hearing? I'm not positive that the noise is coming from there
  Reply With Quote
Old 04-10-2015, 01:27 PM   #6
Senior Member
Styx586 is one of the sharper tools in the shedStyx586 is one of the sharper tools in the shedStyx586 is one of the sharper tools in the shedStyx586 is one of the sharper tools in the shedStyx586 is one of the sharper tools in the shedStyx586 is one of the sharper tools in the shedStyx586 is one of the sharper tools in the shedStyx586 is one of the sharper tools in the shedStyx586 is one of the sharper tools in the shedStyx586 is one of the sharper tools in the shedStyx586 is one of the sharper tools in the shed
 
Styx586's Avatar
Navy: Ship Serviceman 3rd Class
Name: Terrance
Joined: Apr 2011, #54822
Location: Mission Viejo, Ca
Age: 25
Gender: Male
Posts: 1,182
Styx586's Tacoma Gallery
If it's rattling as you said, something could just be loose. Get in there and start wiggling stuff around to see if everything is tight. Disclaimer: TURN THE ENGINE OFF FIRST. lol I'm not too sure what you mean by "cranking"... maybe upload a video or sound clip?
  Reply With Quote
Old 04-10-2015, 01:28 PM   #7
Member
BazzokaJoe is on a distinguished road
Royal Canadian Air Force: 425 ETAC
Name: Olivier
Joined: Jan 2014, #120353
Location: Canada,QC
Gender: Male
Posts: 61
BazzokaJoe's Tacoma Gallery
if some internal bearing are mess up it might be doing some weird noise. if you open your hood does the noise come from the same area?!
  Reply With Quote
Old 04-10-2015, 01:34 PM   #8
Member
BazzokaJoe is on a distinguished road
Royal Canadian Air Force: 425 ETAC
Name: Olivier
Joined: Jan 2014, #120353
Location: Canada,QC
Gender: Male
Posts: 61
BazzokaJoe's Tacoma Gallery
check if your belt is not crack, worn and have a good tension on it
  Reply With Quote
Old 04-10-2015, 02:13 PM   #9
MrCrobb [OP] MrCrobb is offline
Junior Member
MrCrobb is on a distinguished road
EMS: EMT
Name: Connor
Joined: Feb 2015, #149083
Location: San Diego/San Jose
Gender: Male
Posts: 10
MrCrobb's Tacoma Gallery
Alright I added a recording if you guys want to check it out. There aren't any obvious problems with the belt, and nothing seemed loose. When I'm under the hood, the noise is coming from the front drivers side of the engine, around the alternator. It usually starts after i rev the engine a couple times, but then continues afterwards while it's idling.
  Reply With Quote
Old 04-10-2015, 09:42 PM   #10
Junior Member
RGTacoma is on a distinguished road
 
RGTacoma's Avatar
Joined: Dec 2014, #145136
Location: Monterrey, Mexico
Gender: Male
Posts: 7
RGTacoma's Tacoma Gallery
Not sure but sounds like a bad timing chain, find a professional diagnostic.
  Reply With Quote
Old 04-11-2015, 06:54 AM   #11
Member
BazzokaJoe is on a distinguished road
Royal Canadian Air Force: 425 ETAC
Name: Olivier
Joined: Jan 2014, #120353
Location: Canada,QC
Gender: Male
Posts: 61
BazzokaJoe's Tacoma Gallery
could be a bad timing chain (i doubt kind of low millage) ... if you do the timing chain change the water pump at the same time for added peace of mind have a trusty mechanic look at it
  Reply With Quote
Old 04-11-2015, 06:57 AM   #12
Senior Member
That1guy108 is one of the sharper tools in the shedThat1guy108 is one of the sharper tools in the shedThat1guy108 is one of the sharper tools in the shedThat1guy108 is one of the sharper tools in the shedThat1guy108 is one of the sharper tools in the shedThat1guy108 is one of the sharper tools in the shedThat1guy108 is one of the sharper tools in the shedThat1guy108 is one of the sharper tools in the shedThat1guy108 is one of the sharper tools in the shedThat1guy108 is one of the sharper tools in the shedThat1guy108 is one of the sharper tools in the shed
 
That1guy108's Avatar
Navy: Avionics Technician
Name: Josh
Joined: Sep 2014, #138360
Location: Jacksonville, FL
Gender: Male
Posts: 239
That1guy108's Tacoma Gallery
I'm subscribing as mines doing this too at the moment. Difference is mine has 100k on the odo
  Reply With Quote
Old 04-11-2015, 07:08 AM   #13
Member
BazzokaJoe is on a distinguished road
Royal Canadian Air Force: 425 ETAC
Name: Olivier
Joined: Jan 2014, #120353
Location: Canada,QC
Gender: Male
Posts: 61
BazzokaJoe's Tacoma Gallery
you can try to pried-out the belt and turn by hand the alternator and some pulley to see if you got some bad bearing or free play in them
  Reply With Quote
Old 04-11-2015, 07:11 AM   #14
revised
TrdSurgie is one of the sharper tools in the shedTrdSurgie is one of the sharper tools in the shedTrdSurgie is one of the sharper tools in the shedTrdSurgie is one of the sharper tools in the shedTrdSurgie is one of the sharper tools in the shedTrdSurgie is one of the sharper tools in the shedTrdSurgie is one of the sharper tools in the shedTrdSurgie is one of the sharper tools in the shedTrdSurgie is one of the sharper tools in the shedTrdSurgie is one of the sharper tools in the shedTrdSurgie is one of the sharper tools in the shed
Navy: HM1
Joined: Feb 2012, #73132
Location: SoCal
Gender: Male
Posts: 3,050
TrdSurgie's Tacoma Gallery
Mine was doing the same, turned out that the idler pulley near the alternator was going bad. Replaced both uppers for $55 in parts.

You can use a piece of hose, put one end to your ear and the other searching around the motor to pin point the sound. A 6ft fuel line hose is easiest.
  Reply With Quote
Old 04-11-2015, 08:13 AM   #15
Junior Member
sawed off is on a distinguished road
Name: Randy
Joined: Dec 2014, #144246
Location: Idaho
Gender: Male
Posts: 18
sawed off's Tacoma Gallery
Pull the serpentine belt and start the engine. If the noise is gone you will know its one of the accessories. If the noise stays maybe internal engine?
  Reply With Quote
Old 04-11-2015, 11:35 AM   #16
Member
RobertHyatt is on a distinguished road
Name: Robert
Joined: Mar 2015, #150757
Location: Birmingham AL
Gender: Male
Posts: 91
RobertHyatt's Tacoma Gallery
Quote:
Originally Posted by sawed off View Post
Pull the serpentine belt and start the engine. If the noise is gone you will know its one of the accessories. If the noise stays maybe internal engine?
I like the "remove the belt and crank" idea (but don't run it for very long, zero water circulation of course."

I JUST finished replacing an idler on my daughter's mustang. Was making a sound on the OTHER side of the engine. The idler was pretty rough-running, and when it would grab the belt tensioner had to give some slack, then the idler would release, the tensioner would snap back and produce a near-constant rattling sound. The timing chain has a real hard time rattling, it is not sloppy-loose, it has a pretty stout tensioner on it.

In any case, if it rattles with the belt off, things are more serious. If not, you just have to do a little sleuth-work to figure out what is rattling. Water pumps (for me anyway) rarely rattle, they seem to prefer squealing. But alternators, A/C compressors, maybe the occasional power steering pump, but by far the most common "rattlers" I have found are idlers and the tensioner.
  Reply With Quote
Old 04-12-2015, 08:43 AM   #17
Member
BazzokaJoe is on a distinguished road
Royal Canadian Air Force: 425 ETAC
Name: Olivier
Joined: Jan 2014, #120353
Location: Canada,QC
Gender: Male
Posts: 61
BazzokaJoe's Tacoma Gallery
any update?
  Reply With Quote
Old 04-12-2015, 03:23 PM   #18
MrCrobb [OP] MrCrobb is offline
Junior Member
MrCrobb is on a distinguished road
EMS: EMT
Name: Connor
Joined: Feb 2015, #149083
Location: San Diego/San Jose
Gender: Male
Posts: 10
MrCrobb's Tacoma Gallery
Thanks for the ideas guys. No update on the issue so far, I was out of town camping for the weekend. The hose idea is clever, I'll try that out and maybe pinpoint the issue. However, it sounds like I'll have to bring it in to a mechanic next week. I'll keep ya updated!
  Reply With Quote
Old 04-15-2015, 12:11 PM   #19
MrCrobb [OP] MrCrobb is offline
Junior Member
MrCrobb is on a distinguished road
EMS: EMT
Name: Connor
Joined: Feb 2015, #149083
Location: San Diego/San Jose
Gender: Male
Posts: 10
MrCrobb's Tacoma Gallery
Alright, so I just heard back from the mechanic.. He says the noise is coming from the belt tensioner, and is recommending that i get it replaced. He's quoting 500$ (labor/parts/diagnostic)
  Reply With Quote
Old 04-15-2015, 06:23 PM   #20
revised
TrdSurgie is one of the sharper tools in the shedTrdSurgie is one of the sharper tools in the shedTrdSurgie is one of the sharper tools in the shedTrdSurgie is one of the sharper tools in the shedTrdSurgie is one of the sharper tools in the shedTrdSurgie is one of the sharper tools in the shedTrdSurgie is one of the sharper tools in the shedTrdSurgie is one of the sharper tools in the shedTrdSurgie is one of the sharper tools in the shedTrdSurgie is one of the sharper tools in the shedTrdSurgie is one of the sharper tools in the shed
Navy: HM1
Joined: Feb 2012, #73132
Location: SoCal
Gender: Male
Posts: 3,050
TrdSurgie's Tacoma Gallery
Quote:
Originally Posted by MrCrobb View Post
Alright, so I just heard back from the mechanic.. He says the noise is coming from the belt tensioner, and is recommending that i get it replaced. He's quoting 500$ (labor/parts/diagnostic)
Just do it yourself. Very easy job.
  Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
Strange Grinding Noise From Engine when Cold VT Vista 2nd Gen. Tacomas 4 08-04-2013 12:34 PM
Strange sound from engine. Wanted engine! LarrysWorld New Members 2 12-12-2011 10:41 AM
Strange sound from engine. Wanted engine! LarrysWorld 1st Gen. Tacomas 8 12-07-2011 12:15 PM
strange sound from the engine silverboy 2nd Gen. Tacomas 0 05-29-2010 08:17 PM
strange sound from engine JadXtreme Performance and Tuning 6 08-28-2009 02:35 AM


Copyright © 2015 Tacoma Forum. Tacoma World is not owned by, or affiliated with Toyota Motor Corporation.