Starting noise
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Elder User
Joined: Jul 2004
Posts: 849
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From: Leesburg , Fl.
Starting noise
Starting when cold there's a loud banging like a broken motor mount. It starts fine when warm and runs down the road as it should. It has me stumped and thought I'd get a few educated opinion from y'all.
Cargo Master
Joined: Apr 2010
Posts: 2,600
Likes: 64
From: Billings, MT
Is it right away or after it's been running at high idle for a few minutes? On my Mustang with smog delete I had a "thumping" noise from under the hood after it was running for a few minutes at high idle with the choke on. Turned out the belt was a little worn, and would "stretch" when it was cold, causing the belt tensioner to thump back and forth.
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Elder User
Joined: Jul 2004
Posts: 849
Likes: 0
From: Leesburg , Fl.
Actually it when I'm starting it. As it fires up it it sounds as though something is loose and knocking against the engine. I know it sound strange but it just started happening and doesn't happen any other time.
Senior User
Joined: Oct 2011
Posts: 196
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From: Milwaukee, Wi
Don't know what it is but the same thing happens to me. On cold days in Milwaukee like it was today at around 0 degrees F when i start it up in the morning for the first time it thumps and knocks, and rattles for a couple seconds. The majority of the obnoxious noise goes away within a few seconds and but the engine knock persists until it is warm but after that runs great. I always just thought it was normal cold starting conditions that caused this but if this is a problem please fill us in.
haha P.S. I hope our symptoms are the same and I'm not starting a whole new topic. Lemme know and I can remove this.
haha P.S. I hope our symptoms are the same and I'm not starting a whole new topic. Lemme know and I can remove this.
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Elder User
Joined: Jul 2004
Posts: 849
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From: Leesburg , Fl.
Yeah I remember those cold mornings when we lived in Michigan! It's not the usual clatter but sounds as though something is "banging" around under the hood. Like I said it runs and pulls as it always did...
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Elder User
Joined: Jul 2004
Posts: 849
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From: Leesburg , Fl.
Just on start up, once started everything's normal. Has me stumped.
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Senior User
Joined: Oct 2011
Posts: 196
Likes: 0
From: Milwaukee, Wi
I have a feeling it is internal then because you would think that if it was something outside the engine like motor mounts it would be constant
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