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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

Noisy Injectors

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Old Apr 5, 2010 | 02:09 PM
  #1  
lonecountryboy's Avatar
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Noisy Injectors

Does anybody else have a problem with the 3.0 and noisy injectors. I thought I had a valve out of adjustment but when I put my stethoscope on the injectors I found my noise issue. Just wondering if anybody just put a set of reman injectors or new ones. Found a set of reman online for 359.00. If you have changed out the injectors on a 3.0 let me know what you used and how they worked.
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Old Apr 5, 2010 | 04:11 PM
  #2  
OutlawMike's Avatar
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From: Santa Rosa, CA
Yup,

They were noisy before I had them serviced.

They are noisier now that they are cleaned up. Tap, tap, tap......

Everyone keeps telling me I need to adjust my valves. Grrrr, not the valves, just those damn noisy injectors.

I saw one guy who wrapped them with pipe insulation to dampen down the noise a bit. I have never gotten the motivation to pull the plenum to do that.
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Old Apr 5, 2010 | 04:48 PM
  #3  
AzStorm's Avatar
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From: HELL,AKA Phoenix,Arizona
Some MMO or SeaFoam in your fuel might help.
Toyota injectors are inherantly noisy.
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Old Apr 5, 2010 | 04:57 PM
  #4  
hilux1026's Avatar
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can tell you that my rig was making one hell of a racket and likewise thought it was the tappets. Turned out to be a leaky exhaust manifold tightened it and quietened down immensly
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Old Apr 8, 2010 | 11:06 PM
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From: willits
how can you tell the different between the injectors and the valves?
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Old Apr 9, 2010 | 07:17 AM
  #6  
pruney81's Avatar
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From: Leadville Colorado
^^listen to where the noise is coming from, and the valves are more of a heavier, metallic tapping.
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Old Apr 9, 2010 | 09:00 PM
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OutlawMike's Avatar
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From: Santa Rosa, CA
Originally Posted by norcal707
how can you tell the different between the injectors and the valves?
Auto stethoscope. Harbor Freight has them cheap, but I don't think you have one of those in Willits. You can order one online, they are cheap and very usefull in the engine compartment.
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