95 SE clanking sound in motor..HELP - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 03-06-2004, 08:32 PM   #1
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Default 95 SE clanking sound in motor..HELP

I recently bought a 1995 Bonneville SE..We had to repair a broken flywheel...Ok got that done...Now when the engine is running...it sounds like metal clanking together or something...When you give it gas...It quitens down...We cannot pinpoint the problem...My hubby has test drove it and says it runs smooth...We were just wondering what the sound could be? And how can we fix this...Any advice appreciated.......Thanks
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Old 03-06-2004, 08:36 PM   #2
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The sound could be anywhere. You're going to have to narrow it down. We need more information, and can't even begin to guess. Right now, I'd put it somewhere under the hood

Does it do it hot? cold? In gear, or just park or neutral? Get a mechanic'* stethescope from the auto parts store and start trying to narrow down the location.
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Old 03-06-2004, 08:45 PM   #3
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It does it when it is cold...When you first start it in park....To me..the sound sounds like it is located around where the belts are near the harmonic balancer...But it is to pinpoint exactly where it is...
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Old 03-06-2004, 08:54 PM   #4
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Ok I just asked my husband where exactly the sound is coming from (he knows more about this that I do) He said it sounds like it is coming from the intake...Disreguard my "opinion" on it..LOL Shows what I can hear..LOL
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Old 03-07-2004, 02:10 AM   #5
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Cold....near the intake? I'll go with lifter clatter.
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Old 03-07-2004, 08:40 AM   #6
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sounds like lifter clatter to me too....my car does this for about 5 mins after startup.
sounds like tick tick tick tick (really fast)
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Old 03-07-2004, 11:01 AM   #7
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Yea, mine does that too. However, the series 2 in that 95' is typically a lot quieter than the series 1. It seems that all series 1 have clatter.
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Old 03-07-2004, 01:28 PM   #8
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I would check for the harmonic balancer. Turn the car off and see if you can rotate the pulleys back and forth a few inches with your hand.
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Old 03-07-2004, 02:01 PM   #9
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Sometimes sounds are devious when trying to pin them down. A metal clanking sound is not usually associated with lifters. I have seen similar to this before. The flywheel was just replaced. Are the bolts tightened down properly. I have seen quite often that they come loose if not properly torques in (they can be tricky sometimes) This will make a metallic clatter at idle that is difficult to pinpoint and goes away when engine speed is increased. This is just another avenue to explore but I would definetely not overlook it.
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Old 03-07-2004, 10:50 PM   #10
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Thanks to all that answered but we have found the problem...We think the block has cracked :( ...My hubby noticed a leak yesterday but couldn't figure where it was coming from...Got to looking at it again today...Still couldn't pinpoint it until he checked the oil...It was milky....So now, we will have to put another motor in it..Thank goodness we have a junkyard with quite a few of these motors in it....Wish us luck on getting this thing fix cause MOMMA NEEDS A NEW CAR!! LOL
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