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Loud banging noise coming from engine!!


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washi7172
New User

Oct 13, 2009, 2:27 PM

Post #1 of 6 (4325 views)
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Loud banging noise coming from engine!! Sign In

I have a 1995 Olds Silhouette with a 3800 series V-6 engine. In the last couple of days it was losing power during acceleration, and then today it died and wouldn't start. I had it towed home and checked the standard stuff - battery, alternator, starter..... - and all checked fine. So I tried turning it over one more time and it fired up, but started making a very loud clanging noise inside of the engine. Help!


Hammer Time
Ultimate Carjunky / Moderator


Oct 13, 2009, 3:26 PM

Post #2 of 6 (4312 views)
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Re: Loud banging noise coming from engine!! [In reply to] Sign In

Have you checked the coolant and oil level?




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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



washi7172
New User

Oct 13, 2009, 7:52 PM

Post #3 of 6 (4304 views)
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Re: Loud banging noise coming from engine!! [In reply to] Sign In

Both coolant and oil levels are good.


Hammer Time
Ultimate Carjunky / Moderator


Oct 13, 2009, 7:55 PM

Post #4 of 6 (4300 views)
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Re: Loud banging noise coming from engine!! [In reply to] Sign In

It's impossible for anyone to accurately diagnose a noise like that without hearing it but loud noises from the engine are never good. I suggest you get a shop to listen to it.




~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



wayne28307
Novice

Oct 14, 2009, 11:18 PM

Post #5 of 6 (4285 views)
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Re: Loud banging noise coming from engine!! [In reply to] Sign In

Usually on the olds, buicks and poniacs (the 2800-3800 series) GM used internal Cams. When these rods break... (mine did) and so did my bosses wifes car (1989 Olds 88 with 3800 motor) there is no turning back. Its usually caused by a cold start with low oil. but also with heavy acceleration it can bend the internal cam rods.

That same exact thing happend to me, sluggish pick up. then dead. started up one day, bang bang clank clank BOOM. the rod went through the block.


chickenhouse
Enthusiast / Moderator

Oct 15, 2009, 10:34 AM

Post #6 of 6 (4276 views)
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Re: Loud banging noise coming from engine!! [In reply to] Sign In

I ran into this problem yesterday with a cutlass 3.8. Loud banging noise. Had him bring it in, took the belt off and started the engine. Loud banging was still there. Vibration damper had come apart making the banging noise. His car had also stalled out. $90.00 for new & back on the road today- reset the computer also. Maybe you could be lucky also? Hope so!




Loud banging noise coming from engine!!


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