Engine Noise / Ticking, Knocking, Tapping MERGED

[eric489]

All threads with vague titles regarding engine bay noises are now merged HERE.

If you honestly feel we can diagnose an internal engine problem from a poor description or low-quality video / audio sample, give it a shot.


I own a 1997 gst spyder and there is a ticking noise comming fron the engine. It comes and goes and it mostly sounds bad at idle. I have 97,000 miles on it and i change the oil regularly. I changed it about 2000 miles ago I need help to fix the problem.

 

[95GreenGSX]

Maybe a spun bearing?

 

[GSXWhite]

Maybe a spun bearing?

IDK but i hope its something on the botom end since its still under warranty

 

[95GreenGSX]

Hopefully, to me, personally, it doesn't sound like lifter tick. Its too loud for that.

 

[ilco187]

Sounds like rod knock to me.

 

[Boot92]

it could be one of the pistons hitting the top of the cylinder head, thats been known to happen

 

[Hardin]

Yup. That's rod knock.

-Hardin

 

[Mr PopUps]

I second (3rd 4th etc) the rod knock

 

[Doubleot]

Sounds like a rod knock to me too...

 

[Boot92]

Hopefully, to me, personally, it doesn't sound like lifter tick. Its too loud for that.

you sure? have you ever owned a 1.8L 1G DSM?

 

[DSMer541]

yup....i been through 2 engines that blew a rod bearing...sounded just like that.....and from reving it like that you probably destroyed your crank aswell.

 

[GSXWhite]

And the answer is Piston Slap

 

[Boot92]

hah i win. jk jk

that sux tho.

 

[Kearney]

As expected with any new DSM that I got for 950, she broke.

Not sure what, so ill ask you why she sits at my local shop after getting towed.

I was driving, when all the sudden the car started bucking. No noise, no warning.

So, I figure I shifted wrong and get to a light, pop her in neutral. As I stop, she starts revving really high. The tac isn't moving, but you can hear it.

I pass a few more lights, when mid drive she just stalls. I coast her into a parking lot, she won't start. After fifteen minutes its starts back up, no high revs or anything.

Five more minutes trying to get it home, it starts doing it again. I stall at a light. Another 15 minutes of waiting, eventually I just got it towed.

It makes a loud knock or tumble noise in the engine area, and revs on its own, much higher then the tac is telling me.

Any ideas?

 

[Nick2gGST]

That's a toughie hows your throttle body and throttle cables look? Hows the tension on the throttle line also? is it sticking?

 

[LiquidX]

Battery and alternator have good voltage? Might be a grounding issue.

 

[lacroixdp]

Sounds electrical to me too - I'd suspect your alternator, battery, or cables/ground.

 

[MOTOR-RX]

I had similiar issue with my GSX and it was the ground from intake manifold to firewall.

Has the car had any work done to it lately?

 

[Kearney]

I threw a header on it not long ago.

 

[Kearney]

Well, I just picked her up from the shop.

Ill check everything I can, hopefully I can get her fixed.

 

[Kearney]

As expected, the shop seems to think the engine is shot.

Its not revving real high or anything anymore, so who knows?

It just makes a loud tumble noise; looks like i'm out 950.

.

 

[Squirrel82]

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Just got the car.Whats wrong with it?

 

[stunnerracing]

I wouldn't keep starting it. Same thing happend to me when i bought my 95 a couple months ago. Its a bearing. Drain the oil and see if there are any pieces of metal coming out with the oil. If there is you blew a bearing. Could also be a risp pin problem. Would probably start looking for a motor.

 

[Squirrel82]

Allright Ill check the oil.If there are metal pieces can I just replace the damaged parts and be good to go?If so which parts would they be?If not,will a fresh short block fix the problem?

Ive never really worked on engines.This will be car to learn on.

 

[spaugh]

I would say a Fresh short block would be your best bet. Sounds like a rod knock to me.

 

[Squirrel82]

I see.Where would you guys recommend I look for one?