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Author Question: An engine makes a sharp metallic rapping noise at idle that is present when the engine is hot. The ... (Read 69 times)

faduma

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on: Oct 6, 2021

Question 1


When might a running compression test be required?



Question 2


An engine makes a sharp metallic rapping noise at idle that is present when the engine is hot. The noise disappears during acceleration and at higher speeds. What is the most likely cause of the problem?


◦ Worn pistons
◦ Worn piston pins
◦ Worn lifters
◦ Worn camshaft lobes
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Marked as best answer by faduma on Oct 6, 2021

chem1s3

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Reply #1 on: Oct 6, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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faduma

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Reply 2 on: Oct 6, 2021
YES! Correct, THANKS for helping me on my review

diana chang

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Reply 3 on: Yesterday
:D TYSM

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