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2014 LT program car, Pull Me Over Red
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Discussion Starter · #1 · (Edited)
This is my standing click, tick, and rattle list. This is an accumulation of things I have found on CruzeTalk and a few that have happened to me. If you have something to add, post below. If need be this thread will be edited to keep it to possible causes and their fixes. (Thanks to many people including JBlackburn, Robby, BigLee and more) :

1. Could be just the injectors.


2. Could be the plastic ECOTEC cover rattling.

3. Check that the spark plugs are properly torqued - similar sound, mimics loose valves - Re-gap the plugs to .028, torque to 18 ft-lbs., no anti-seize with stock type plugs, inspect the boots and ensure no rips / tears or holes, lightly coat the boots with silicone / dielectric grease, make sure the resister springs are clean and not cocked in the boots.

These are the recommended plugs from the Hesitation Gone thread:

-BKR8EIX-2668 (iridium plugs), ~$25, expect ~10-15k re-gaps on these, ~40-50k overall life.

-BKR7E-4644 (nickel/copper plugs), ~$8, expect 15-25K out of these plugs, with a re-gap or two required at 5-8k intervals on stock tune.

4. Could be a failing EVAP purge solenoid/valve or possibly a vacuum leak causing the purge valve to stay open. You can find it right above your intake manifold.

Unplug the electrical connector to the purge solenoid while it is running and see if the noise goes away. If it does, replace the purge solenoid assembly.

Many of these tend to get very noisy with age, and since it is duty cycled by the PCM it tends to sound very similar to valve-train noise. Part number is 5573017.

5. Could be a lifter tick - how's the oil - possibly try Seafoam or Valvemedic

6. Could be the timing chain tensioner.

7. May be a loose upper guide - tighten to 71in-lbs.


8. Could be a sloppy timing chain.

9. Could be piston slap/wrist pin failure. Remember, piston slap would be noticeable also in neutral.

10. Pinging caused by low octane fuel, possibly try using 91 octane fuel for a few tanks.

11. Could possibly be an improperly torqued bolt on the flywheel/torque converter (noise from the trans side)

12. Might be a bad wheel bearing, I personally had this issue.

13. Possibly the knock Sensor going off or bad and it can be exacerbated by any of the above. . The knock sensor is ALWAYS listening. The ECM is constantly adjusting spark/cam timing to run as efficiently as it can, and it should pick up on audible knock/pinging and adjust it before you even hear it.

14. Maybe your AC compressor is going bad.

15. Sometimes carbon on tops of pistons or valves can cause some knock. There are several "top engine cleaners" on the market to clean that off.

16. Fuel or brake lines vibrating.

#PIC5853: Buzz Vibration Noise Floor Dash Area 1800-2200 Engine RPM - (Apr 22, 2013)

Subject:Buzz Vibration Noise Floor Dash Area 1800-2200 Engine RPM
Models:2013 Chevrolet Cruze
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern Some customers may comment of a buzz noise and or vibration in the dash or floorboard areas, most noticeable at 1800-2200 engine rpm.

This condition may be caused by fuel line and/or brake line vibrations entering into the cabin area through the front of dash. Even though the fuel lines and/or brake lines are fully seated in their retainers, vibrations may still pass into the cabin area.

Recommendation/Instructions Use additional tape on the affected line(s) and/or add a small O-ring underneath the affected clip(s) to provide better isolation of the clip.

Further ensure that the lines do not make any contact with the front of cowl that could further cause a noise or vibration.

Validate the repair by checking for noise or vibration at 1800-2200 engine RPM.

17. Missing air deflector fasteners

#PIC5874: Fluttering Rattling or Thumping Type Noise Above 45 MPH - (Jun 12, 2013)

Subject: Fluttering Rattling or Thumping Type Noise Above 45 MPH

Models: 2011 - 2014 Chevrolet Cruze

2012 -2014 Buick Verano

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern

A customer may indicate there is a flutter or thumping type noise from the side or underneath the vehicle at speeds 45 mph and above.

Recommendation/Instructions

Check the air deflectors mounted on either side under the vehicle. Make sure that all fasteners are in place and secure. Replace fasteners as needed.

If all fasteners are secure, it may be necessary to apply felt to the underbody above the inside edge of each air deflector (between each fastener location) to eliminate this noise.

18. Could be that the midpipe bracket bolt coming loose.


Different sound bytes to choose from:





Some of the associated error codes:

P0324: Potential causes for this code to set are:

Defective knock sensor/s
Internal engine malfunction
Ignition misfire/s
Contaminated or substandard fuel
Defective knock sensor control wiring and/or connectors.
Bad PCM or a
PCM programing error
Read more at: P0324 Knock Control System Error
 

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Updated text and added a few more videos
Sorry didn't mean to post on this thread meant to post on mine forgot I had clicked over to this one. Don't know how to delete

Haven't had the rattling noise in about a month, but I'm pretty sure the compressor is going out. Think I'm going to ride it out until June when I plan on trading it in. Hopefully the pulley doesn't lock on me by then.
I removed the relay and fuse for the clutch. Not sure if that will help any but figured it wouldnt hurt.

I know a while back i started getting a smell coming through my vents. Somewhat smells like antifreeze, but it is not antifreeze. Could this be acid? I heard from someone say you can get acid in the system.
 

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2014 LT program car, Pull Me Over Red
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Discussion Starter · #4 ·
Sorry didn't mean to post on this thread meant to post on mine forgot I had clicked over to this one. Don't know how to delete

Haven't had the rattling noise in about a month, but I'm pretty sure the compressor is going out. Think I'm going to ride it out until June when I plan on trading it in. Hopefully the pulley doesn't lock on me by then.
I removed the relay and fuse for the clutch. Not sure if that will help any but figured it wouldnt hurt.

I know a while back i started getting a smell coming through my vents. Somewhat smells like antifreeze, but it is not antifreeze. Could this be acid? I heard from someone say you can get acid in the system.
I just noticed that one of my personal issues with rattles is not on here. One of the AC Compressor bracket mounting bolts was broken. Once you get to it, it was an easy fix and solved a major noise issue for me.

As for your coolant / oil smell, read some of the following and get back to us after some digging.

SB-10070878-5448.pdf
 
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