Moderator: volvite
Thanks for the response.Pappy wrote:There are more than a couple of things that this could be but the two I would say;
1. Sounds like valvetrain noise which is common in very cold weather but should get quiet after the motor warms up. Its -33F here this morning and with a block heater mine still makes a little noise but not that much. Warm the engine up and then restart, see what happens.
2. I've always thought that in cold weather, when air is at its highest density, you can have mild spark knock or detonation. Spark knock can sound just like metal to metal contact. A higher octane fuel can cure that.
Disallow, the easiest fix is crank up the radio! LOL
Already using Mobil 1 5w30... i don't think 5w20 makes that kind of difference...Captain caveman wrote:Its the cavitation of the oil pump. I really think Im going to try and use 5w/20 for winter since mine does the same sound when cold.
Well it doesn't appear to be an engine noise. They replaced the serpentine belt and tensioner, but that didn't fix it. $250 later. ($100 of parts) There is a TSB for updated tensioner, and they showed me that it was weak anyways, so I guess it needed to be done, but did not fix the problem.Captain caveman wrote:Well I found out what works. I've never been a engine rebuild in a can type of guy but I thought about Lucas oil. I seen on there is helps with cold starts so I went a got a oil change done and had them add one at of Lucas. Today in Chicago we had temps in the 9's. I did a cold start with no sounds. Just nice smooth sounds.
I'll be in Chicago next week on business. Looking forward to warming up from our -31F (without windchill) here in Manitoba.Captain caveman wrote:Well Here in Chicago its -9 with out windchill and I just started it up. I really think Lucas helps. But I will keep this in mind about the TSB when I'm near the dealer
Now that I have my Superchips Cortex tuner, and I changed to Fuel Saver XS mode, the knocking on startup is all but gone. I only have to run 87 octane now, it no longer pings or knocks on load.disallow wrote:Thanks for the response.Pappy wrote:There are more than a couple of things that this could be but the two I would say;
1. Sounds like valvetrain noise which is common in very cold weather but should get quiet after the motor warms up. Its -33F here this morning and with a block heater mine still makes a little noise but not that much. Warm the engine up and then restart, see what happens.
2. I've always thought that in cold weather, when air is at its highest density, you can have mild spark knock or detonation. Spark knock can sound just like metal to metal contact. A higher octane fuel can cure that.
Disallow, the easiest fix is crank up the radio! LOL
I'm not referring to the ticking, moreso the squawk that starts at 22 seconds into the video and end at 32 seconds.
When its really cold, this noise will last for up to 2-3 minutes, or until I start driving.
You're right though, at this temperature, before the engine is warmed up the knock from low octane fuel is more apparent. Right now have 87 octane in it, but next tank is 93.
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