SureTrack Community Fix: Cold Rattle

Real Fixes from Mitchell 1’s SureTrack® expert information resource are documented issues from actual shop repair orders and community discussions. Read on to see how SureTrack can help you correct issues that are not easily diagnosed using OEM information alone. SureTrack is available at no additional cost in our ProDemand product.

Sometime we forget that the first place to start your diagnostics is the TSB library. SureTrack community member CESARS AUTO REPAIR had a Honda Accord in their shop that had a cold start rattle, they were headed down the path of changing timing chain components. They posed the question to the community, and with the help of fellow community member Richard_C and others, they were able to resolve the issue quickly.

The following Community Fix summarizes the interaction between members of the community that led to the solution.

2010 Honda Accord LX 2.4L

Rattle noise at startup, replaced VTC actuator.

Customer complains that vehicle has engine rattle when started cold.

Diagnostic Steps Performed/Parts Replaced
Started engine cold and noted rattle noise that goes away within a few seconds. Checked oil level, which was correct, and performed oil change. Rattle noise still there in the morning. Will a timing chain kit with guides and tensioner take care of this problem? Are there any other things to look for?

Best Answer from Community Member Richard_C
Check the variable valve timing control (VTC) actuator as mentioned in Honda TSB 09-010.

Variable valve timing control (VTC) actuator was the issue.

Replaced VTC actuator and engine no longer rattles when first started cold.

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About the Author

Nick Taylor

Nick Taylor is the SureTrack Community Administrator and a Senior Applications Specialist at Mitchell 1 with over 25 years of experience with electronic repair data systems. Nick previously worked in the automotive dismantling and engine rebuilding industries.