07-26-2023, 08:04 PM
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#1
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V8 knocking
I just got my oil changed on an ‘03 V8 and all of a sudden it started knocking. This isn’t the exhaust leak tick. It’s a knock. What scenarios would produce a knock?
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07-27-2023, 05:45 AM
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#2
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I'm guessing you checked the oil level, if not low oil level with make it knock.
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2004 Limited V8
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07-27-2023, 08:17 AM
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#3
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WHO changed your oil?
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2003 Limited, V8, AWD. K&N, Dobinson IMS/FJ springs,, SPC UCA, Super Pro bushings in front LCA and in all rear control arms, Michelin 265/65R17 LTX/Defenders, stock wheels with homemade center caps, Stop Tech slotted rotors w/Posi Quiet pads all around, spare tire relocated to inside cargo area.
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07-27-2023, 08:28 AM
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#4
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Dealer changed the oil. Yes, I did check the level. The only thing new is they put in synthetic and I don’t know if it had synthetic before.
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07-27-2023, 10:14 AM
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#5
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Quote:
Originally Posted by gloch
Dealer changed the oil. Yes, I did check the level. The only thing new is they put in synthetic and I don’t know if it had synthetic before.
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That makes absolutely ZERO difference.
The real question is what viscosity did they use and what filter is on there?
Have you confirmed the oil level yourself or are just going off the noise? Have you looked under the hood or under the vehicle for any glaring issue?
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2003 4Runner Limited 4wd V8 - Build thread on Tacoma World
FJ tcase swap, VVT intake swap, Solid Offroad motor mounts, Doug Thorley y-pipe, Bold Performance cat-back, ADS shocks F&R, Metal Tech LTHD springs rear, 1" body lift, 285/75/17 Toyo R/T Trails on Sequoia rims, Coastal front bumper, CAD rear bumper
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07-27-2023, 10:18 AM
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#6
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I checked the oil level right after heard the knocking. It seems to be full.
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07-27-2023, 11:25 AM
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#7
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Have you talked to the dealer that did the change? Did it knock when you picked it up from them?
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2003 4Runner Limited 4wd V8 - Build thread on Tacoma World
FJ tcase swap, VVT intake swap, Solid Offroad motor mounts, Doug Thorley y-pipe, Bold Performance cat-back, ADS shocks F&R, Metal Tech LTHD springs rear, 1" body lift, 285/75/17 Toyo R/T Trails on Sequoia rims, Coastal front bumper, CAD rear bumper
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07-27-2023, 05:03 PM
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#8
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Does it knock all the time and all RPM ranges or only on start up?
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07-28-2023, 08:47 AM
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#9
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If it truly is an engine knock, this could get ugly based on the situation. Maybe another "this is why I don't let the dealer change my oil".
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2003 Limited, V8, AWD. K&N, Dobinson IMS/FJ springs,, SPC UCA, Super Pro bushings in front LCA and in all rear control arms, Michelin 265/65R17 LTX/Defenders, stock wheels with homemade center caps, Stop Tech slotted rotors w/Posi Quiet pads all around, spare tire relocated to inside cargo area.
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07-28-2023, 12:03 PM
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#10
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Well, I don’t know what happened but the knock is gone and VSC Trac and VSC off come on when I put it in gear. I feel like I’m chasing my tail.
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07-28-2023, 02:18 PM
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#11
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Quote:
Originally Posted by gloch
Well, I don’t know what happened but the knock is gone and VSC Trac and VSC off come on when I put it in gear. I feel like I’m chasing my tail.
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It sounds like you need to do a zero point calibration. You can search how to do it here on the forum. It’s pretty straightforward.
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