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engine clatter


dnauls's Avatar
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Join Date: Jun 2002
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11-09-04, 09:31 AM   #1  
engine clatter

i own a 2000 chevy silverado with 73000 miles latley i can hear a clatter
coming from engine when i exelerate the engine .could that be coming from
dirty fuel injectors or bad valves . how can i determine the problem .i have
tried injector cleaners and octane boosters and changing grades of gasolines
nothing seems to work .whats my next step.

 
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AutoDoc's Avatar
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11-09-04, 01:42 PM   #2  
well you can get a mechanics stethascope and check for for ware the noise is comming from or bring it to a shop and have them locate it for you could posibly be spark knock caused by a bad EGR but that is just a guess

 
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11-09-04, 05:04 PM   #3  
Has there been any repairs to the engine or cooling system?If you are not the original owner pm me your vin and I can check warranty records for you.Also please describe the noise better,hot,cold,light throttle,heavy throttle,in gear,in park etc.

 
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11-10-04, 07:12 AM   #4  
engine clatter

i am not the the original owner ,the vin mumber is 1gcec14wz257470
the noise is light trottle while in gear .the engine sounds smooth when in park.
just when i put engine in gear and accerate i can hear light clatter.

 
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11-10-04, 02:18 PM   #5  
That is not a complete vin number so get it off the truck in the dash area drivers side looking through the windshield.It will be 17 characters long.

 
dnauls's Avatar
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11-11-04, 07:22 AM   #6  
engine clatter

vin number 1gcec14w3yz257470

 
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11-12-04, 03:34 PM   #7  
There were no warranty repairs made to the engine of the truck after 36k I can't say if any repairs were made.The truck came from Morris Moore Chevrolet in Silsbee Tx.There are no known service bulletins listed for your concern.At this point make sure the cooling system is full and the fan is working properly.Check the egr system as said before and check or replace the fuel filter and get back to us.

 
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11-12-04, 05:43 PM   #8  
splashchris
Davo,
Is it possible the timing is out on his Silverado? I've heard some gosh awful clatter from an engine running with too much timing advance. Checking engine codes might indicate a malfunction.

Chris

 
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11-13-04, 09:38 AM   #9  
Ignition timing is not controlled by rotating the distributor on his truck.Incorrect ignition timing will cause spark knock and is almost always caused by someone turning a distributor trying to fix something else not caused by timing.If a distributor is never moved from the factory setting it will never change without a mechanical failure of some kind.This on electronic ignition engines not point type but that's for another time.

 
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11-19-04, 04:26 AM   #10  
engine clatter

i found the problem it was a leaking exaust manifold causing the clatter.
the weld had broke loose.cost 15.00 to fix .someone had said thats what it
could be on a previous post but i did not follow up.truck running smooth.

 
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