1999 Chevrolet Malibu help

1999 CHEVROLET MALIBU
205,000 MILES • 2.4L • 4 CYL • FWD • AUTOMATIC
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DJYANCEY
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Is a 99 Malibu 2.4 dohc an interference engine? Reason being, I had my water pump done last week. When I get it back, the car is idling higher than normal and cuts off when I slow down to a stop. The very next day there is a loud knock noise when I crank it and drove it to work. Cut off multiple times. I took it back and the mechanic said I had slung a rod from being a half a quart low on oil. I feel like he is trying to get over
Aug 21, 2014 at 10:04 AM
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JACOBANDNICKOLAS
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Is this the Quad 4 engine? If so, it is an interference engine. And being 1/2 quarts low on oil will not spin a rod bearing.
Aug 21, 2014 at 10:13 AM
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DJYANCEY
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Yes it's the quad 4
Aug 22, 2014 at 12:11 PM
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JACOBANDNICKOLAS
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Yes, it is an interference engine. However, that small amount of oil wouldn't have caused the engine problems. Heck, my sis in law just stopped and asked if she needed oil. She was 3 quarts low. No that isn't a good thing to do, but the engine is fine.
Aug 22, 2014 at 12:35 PM
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DJYANCEY
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So, could he have been the one to mess the timing up? And possibly bend the valves. Or cause it too run awful. Sling a rod?
Aug 22, 2014 at 2:05 PM
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JACOBANDNICKOLAS
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Well... your water pump is run by a timing chain. The chain tensioner needs to be removed to complete the job. Did the car ever run properly for you after you got it back?
Aug 24, 2014 at 1:51 PM
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DJYANCEY
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no, it didn't run properly on the way home. and the very next morning it was knocking.
Aug 25, 2014 at 12:25 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
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Something was wrong with it then.
Aug 25, 2014 at 10:40 PM
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