engine knocking?? - Maintenance and Repair Forum

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engine knocking??
Thursday, February 03, 2005 5:07 PM
Alright, i took it to a shop and of course it doesn't do the knocking noise when they had it, so they said the best thing was to just change the oil. So i did that and my engine still knocks. when you step on the gas, the knocking goes faster. could this be a loose rocker or what. also could it hurt the car and have it checked out or should it be fine. the car seems to drive just as good when i got it and doesn't seem to change the performance or anything. can someone help me out, thanks

Re: engine knocking??
Thursday, February 03, 2005 5:09 PM
By the way, its a 97 2.2 with about 113,000 miles on it, its my winter car
Re: engine knocking??
Thursday, February 03, 2005 8:20 PM
usally nocking is lower end i dont think that your knock would be coming from the rocker that would be more like a ticking or clicking noise! You could also have a possible head gasket problem that might have lead to the engine over heading and could have cause the knocking! I have a 2.2L 96 with 155000+ and the 2.2 should go 200000+ no problem! You might want to look into a junkyard engine!


Its not my cavaliers fault, its a taco burner!
Re: engine knocking??
Friday, February 04, 2005 3:12 AM
^

Is it me or the 2004 Noob are really bad. greenspeed - please don't say anything more before reading and learning more about engines.

The 2.2 (90-02) always had a small knock/ticking sound. You can hear it more when the engine is cold. My father 2200 sound like a diesel engine on idle and when reving when the engine is cold. There's NOTHING wrong with that. It's a 2.2 thing. A real knock will be hear if the rods/main bearing get worn too much. The things than can cause that are the coolant, bad maintenance, abuse(witch happend less often) and no oil. I've had a real knock with my 2.2 when I spun a bearing and it's not even close to a small knock.

What you can do is do an oil change with 5w30 regular oil, put a DELCO filter, start the car, let it warm up and go easy on it for a few miles. Then listen to the engine. If there's still a small knock, you may try to look for something. Some people said the 2.2 knock/ticking is the timing chain but I never had to change one on my 2.2.

As for looking for a junkyard engine, forget that. The engine is still good.



Gilles
2.3 Ho

Re: engine knocking??
Saturday, February 05, 2005 2:57 PM
alright i'll change the oil again and throw on a delco filter, think it might help if i put some of that lucas oil treatment in there right away?....

i'm going to be selling the car to my little brother and don't want to sell him sh*t if the engines going. it does sound alittle like a desiel a bit but it still drives great.

if theres anything else i can do, let me know

thanks gilles
Re: engine knocking??
Saturday, February 05, 2005 3:33 PM
Take a short piece of garden hose..........................hold one end to your ear & carefully move the other end around the running engine( don't get it caught in the belt )........you will be able to pinpoint where the noise is coming from...............that's what I did with my 2.2........it's still running strong & making the "little " knocking sound..............If it quits making noise , then I'll worry about it.
Re: engine knocking??
Saturday, February 05, 2005 5:20 PM
Mine was also like a clicking/knocking sound. I spent alot of time trying to figure out what it was. Then i finaly came to the conclusion that it was comming from my timing chain. So i took it apart to find my chain tentioner broken. A peice of the plastic sliders that the chain slides on was gone. Changed the chain and tentioner and that fixed it. But now i put about 8000 miles on it it started doing it again. I will have to go buy a GM one, no more cheap parts for me. I think i save money but i really don't when i have to replace thing twice or more till i get a good part.

If u hear the sound more on the passenger side then it might be that.
Re: engine knocking??
Sunday, February 06, 2005 12:25 PM
ihad the same issue 2 times both times related to the quality of gas, bump your gas up to 89 for 1-2 tanks see if that helps sometimes things stick such as valves using a higher octane has more detergents which "cleans" which sometimes loosens up the deposits and in a lot of cases it will stop knocking..


beer is like a chick.. well not really its just beer, it be cool thou huh?

Re: engine knocking??
Wednesday, February 09, 2005 2:12 PM
alright well today it wasn'to knocking but i'm sure it will be doing it again, i'm going to change the oil this weekend again and see what happens. if anyone else has got some sugestions, let me know, thanks
Re: engine knocking??
Sunday, February 20, 2005 11:48 AM
well i talked to a couple guys and they said it sounded like a the lifter clicking, i haven't gotton around to changing the oil again but i will next week, i'll change the oil, delco filter and a quart of lucas. and if the clicking noise doesn't go away after that and it is the lifter, is it going to hurt the engine or will it be good to go?
Re: engine knocking??
Tuesday, February 22, 2005 4:03 PM
I just got back from auto zone where i had a guy just quick look at it, he said that the main bearing might have been spun. if thats the case, what would it take to fix that??

Re: engine knocking??
Tuesday, February 22, 2005 4:33 PM
pull the engine, remove the crank/rods/pistons, have the crank turned and the block mains refinished, and get undersized bearings. Reassemble, and go.




-da chinchilla

<img src="http://registry.gmenthusiast.com/images/jiggamon/avatar15569_2.gif">
Re: engine knocking??
Tuesday, February 22, 2005 4:50 PM
Dxray wrote:Mine was also like a clicking/knocking sound. I spent alot of time trying to figure out what it was. Then i finaly came to the conclusion that it was comming from my timing chain. So i took it apart to find my chain tentioner broken. A peice of the plastic sliders that the chain slides on was gone. Changed the chain and tentioner and that fixed it. But now i put about 8000 miles on it it started doing it again. I will have to go buy a GM one, no more cheap parts for me. I think i save money but i really don't when i have to replace thing twice or more till i get a good part.

If u hear the sound more on the passenger side then it might be that.


I've been plagued with replacing timing chain tensioners constantly. The GM one is the best, by far. It lasts me about a year before it goes bad. The others lasted me about 5-10 thousand miles.



Re: engine knocking??
Tuesday, February 22, 2005 7:15 PM
the one guy told me if it is the main bearing, i can put 20w-50 in for my next oil change and it shold quiet it down a bit. but i don't know for sure if it is that, i think i'm going to take it in this weekend
Re: engine knocking??
Tuesday, March 08, 2005 9:48 PM
isn't this racing oil???......will i quiet my car down or wont it help???



Re: engine knocking??
Tuesday, March 08, 2005 9:58 PM
yea my 2200 ticks a lil too now more towards the passenger side...

I put some JBP race springs in the car when I had the head built, so it probably is my timing chain straining slightly to push the valves down. Thats ticking I can deal with *JBP

and I'm pretty sure 20w 50 is NOT race oil

20w50 is pretty damn thick, i'm pretty sure that would be like for a diesel truck.. race oil would be like 0w30... a thinner viscosity for less resistence in the rotating mass of the engine.








Re: engine knocking??
Wednesday, March 09, 2005 9:36 AM
ok, well lets just say that it is the main bearing going out that is making that noise, will the 20w50 be alright to use to quiet down the engine since it is a thicker oil. it should hurt it right?




Re: engine knocking??
Wednesday, March 09, 2005 9:40 AM
LeNoble22 wrote:it should hurt it


This is correct.




-da chinchilla

<img src="http://registry.gmenthusiast.com/images/jiggamon/avatar15569_2.gif">
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