Question about 2003 Chevrolet Impala
Might be the valves have been damaged running without oil
- or the crankshaft / camshaft / main bearings
most probably you have to let the engine be rebuilt by a mechanic
(expect cost of more than US$ 2.000)
or get another (used) engine at a scrapyard
Posted on Dec 06, 2014
Try this to see if it makes it better,drain all the oil,replace the filter ,then top up with 20/50 oil,if the noise goes away you have been lucky,if not, its gonna cost ya..... so you can decide what the noise could be,constant "tapping" .....cam followers....."tapping" when engine slows,small ends....."knocking", when engine slows,
big end bearings.(engine revved up/no load.)knocking when accelerating under load NEW engine.......
Posted on Sep 14, 2010
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Posted on Jan 02, 2017
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