help!! i need a new motor!

[Bob Loblaw]

hi everyone, i need help, my motor started to make this ticking noise and it won't go away. I was going to try a bottle of Lucas oil, does anyone know anything about this stuff? anyways, i was wondering if anyone can tell me how to get rid of this ticking noise. it is a 1989 chevy s-10 with a 4cyl 5 spd in it. thank you in advance.

[thesofafox]

Does the ticking/knocking increase in speed when you give it a little gas (Not redline)? If so You may have thrown a bearing and aquirred a rodknock.. Only other thing I can think of with that kinda vague information is you may have stuck and burnt a piston.

If its a quiet tick then thats the fuel injectors, but I have no clue if that motor TBI or EFI.

if its a "Pop" or "knock" it may be a thrown bearing.

[mjohn]

a ticking noise could be a valve lifter...could it not?
why not have a local friend listen to it and get some free advice...homegrown...

[jcas1411]

I had a 95 that did the same problem with the 4cyl engine. GM for that year used a plastic timing chain adjuster that was bad about wearing out and getting stuck in the chain making a horrible clicking noise. No one was able to isolate the noise, just tore into it and found it. I know yours is a little older so may not have that same silly style. GM changed this on the 96 and again on the 97. lol.

[blazinmiller]

It could be lifters, cam, pistons, rods, timing chain hitting cover.

Many possiblities.

You need to first get a general idea where the sound is coming from.
Front, back, left right.

And then from there, figure out if it's a lowerend or upper end issue.

Go from there and let us know.

[Built4cyl]

I've got a 91 with the 4cyl 5speed and before i rebuilt the motor it had a tick/knock and it ended up being a loose rocker, If you have the 2.5L just unbolt the valve cover and tighten all the rockers down, by the way you cannot over tighten them because they have a stop plate just tighten it down then go like a 1/8 turn and they should be fine, also u might have a clogged pushtube which could be cutting off oil to the rocker, that will make a ticking sound also, either of these are likely if the engine has alot of miles on it, mine had 347K before it started to do that.