polachkog5

Ok i think its the timing chain and tensioner but id like to get an opinion and what else could be wrong since i think this is the problem. ok well i was driving and i lost alot of power and it started tapping really bad the tapping is coming from the passenger side of the vehicle where i think the timing chain is but im not sure and ive heard that the tensioners go bad and caused it to skip time.. is there any other problems associated with the timing being off do the valves get bent or am i safe??

ItalianJoe1

iTrader: (10)

Yes it can bend valves. How many miles on the car?

klutch814

iTrader: (6)

over 100k i belive hes a local

polachkog5

yeah it has like 126,000 on it and i had to drive it from state college which is like 35 miles from my house and i drove home lol so im guessing i messed something up great!!

nhanson

iTrader: (1)

Can you get a video?

polachkog5

yeah ill have to make one tomorrow im not home atm but tomorrow ill do it for sure

cleanxfe

check your oil if its nasty your oil pick up will most likey be clogged with sludge and starve the top end for oil

getwicked

iTrader: (1)

I'm putting money on bent valves (needing a new head and pistons)
I've seen a few come through where the valve is embedded in the piston.

polachkog5

FML i really hope that isnt the case :-\

getwicked

iTrader: (1)

You won't know until you pull it apart.

ALSO: I wish I still had pictures. Good conversational piece.

bluebalt07

iTrader: (8)

I doubt it's bent valves. If the chain skipped teeth and got thrown out of timing it would have bent all the valves and the car would have stopped running. With bent valves you get no compression and the engine won't run so if the car continued running but just made that tapping noise your valves should be ok

jdn902

but couldn't the major loss of power he expierenced be from lack of compression?

G5GT2007

If it is the 2.2 eco they have had issues with the timing chains. the tensioners go and that makes the chain stretch, If i was you i would not drive the car till you get it fixed. my ex gfs mom blew the motor on her 2004 sunfire and her ecotec motor was making the same sound and it was the timing chain. it would be cheaper to get the car in the shop and get a rental then have to replace a motor.

bluebalt07

iTrader: (8)

Lack of compression would definitely cause a major loss of power but the car would also misfire on any cylinder that had no compression and he never said it was misfiring

getwicked

iTrader: (1)

Omission of stating a symptom doesn't mean the symptom isn't happening.

bluebalt07

iTrader: (8)

Ok well then polachkog5 is the car misfiring really bad? And still with loss of compression in two or more cylinders these motors won't run. I had to replace my head a couple months ago because of an oil leak and in the new head there was one lifter in 2 different cylinders that was seized up and didn't let the valves close all the way. Mind you this was only one of the four valves in each cylinder and the car wouldn't start. If he had bent valves he would've bent more than one valve in two of the cylinders.

getwicked

iTrader: (1)

The car I talked about with the valve embedded in the piston drove into our shop.

polachkog5

ok the car doesnt have major loss of power it still moves and pretty good at that for bein out of time its just when i take it over 3 grand in the rpms it wants to die so im guessin the chains slippin i havent ran it or anything since i brought it home only to move it 50 ft to my shed but from what ive learned it was the tensioner and the chain slipped no bent valves have been discovered(thank god)

getwicked

iTrader: (1)

That's good news!

polachkog5

yeah thats what im sayin is there any diagrams or how tos on how to do this i dont wanna mess anything up first time doin the timing chain thing

getwicked

iTrader: (1)

I don't know how to explain it. It depends on which cam gear it skipped on or if it skipped on the crank gear.


https://www.cobaltss.net/forums/2-2l...timing-262997/

bluebalt07

iTrader: (8)

Different forum but this should help

edit: never mind the link wouldn't work I'll send it to you in a pm

cleanxfe

is your check engine light on? if its not your timing is fine

getwicked

iTrader: (1)

If it's making all that noise and the CEL isn't coming on for anything then there is bigger problems at hand than his timing.

bratboy90

iTrader: (7)

VVT has a timing chain? Oh so confused.