Question about 2006 Suzuki Forenza

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Knocking (Pinging) noise heard when car is in drive

2001 Mazda Protege 1.6L Automatic
Only heard in drive and reverse, is a knocking (pinging, slapping) noise is hear when RPM's are at about 2,000 and fade at about 3,500. I've checked and changed timing belt, rod clearance is good, and flywheel isn't cracked. Engine sounds perfect in park and neutral. Drop it into drive it loses motor strength and sputters a little and sometimes hesitates, then press on the gas and that slapping noise is heard. With a stethescope its heard in the lower front of motor. Compression test indicates low in 2 at 80 something and 56 on 3. Please help it is driving me crazy.

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Check the vehicle knock sendor, are u using the right grade of gas, and oil for u temp zone

Posted on Jul 21, 2009

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Posted on Jan 02, 2017

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