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2002 Chevrolet Impala

 

Question: why is my motor makeing a really loud ticking noise?

Question

skip4203, 3.8L V6, Oak Harbor, WA, March 17, 2013, 17:53
 Rookie

when i started my car this morning it instantly starting makeing a loud ticking noise from the motor(loud enough i could hear it from inside the car), i let it warm up and still no change in the noise. so i drove it and as i pushed on the gas pedal the ticking would get faster and louder.
so i did some reaserch and found a few possible issues it could be

1. oil pressure relief valve could be stuck, so i took it out inspected and cleaned

2. oil pump not working, so i removed the oil filter and cranked the car over 6 times so see the flow out of the filter adapter, and its flowing just fine.

so my last idea was put seafoam engine restorer and repair in it. i did that and let the car idle for about 45 mins and it quited the ticking signifacantly, but now after the car has sat for 2 hrs i went to start it up again and the loud ticking was back, let it run for about 2 mins and pushed on the gas and the ticking slowly started to go away again.

what the heck is wrong with my car????
if anyone could help please!!!

2 Answers
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  • Answer #1

    big brad March 17, 2013, 20:34
    Profile_thumbnail
     Technician

    may possibly be lifters goin bad and loosing pressure till you raise rpm those motors are also a prime candidate for piston rod knocks that is the rod that runs through piston

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    skip4203, March 18, 2013, 03:54
     Rookie

    thank you for the info!

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  • Answer #2

    arturo08 March 17, 2013, 22:57
    Profile_thumbnail
     Master

    try dura-lube sludge remover. may be some build up. are u using synthetic oil? if not than transition between oil changes with synthetic blend for one season(use sludge remover here) than to full synthetic on oil change after.

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    skip4203, March 18, 2013, 03:56
     Rookie

    yes i'm useing synthetic. so if i drive the car with it the way it is, it won't do any internal damage?

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    arturo08, March 18, 2013, 12:59
    Profile_thumbnail
     Master

    you showed signs of improvement with the oil additive. it's a clue there's something going on inside the engine. try introducing oil stabilizer to it. it may buy you time if prob. is bad but you should be able to get around with out any emediete threat. you need to get it looked at before to long if prob. persists.

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