No compression in engine

No compression in any cylinders? that is a bit far fetched. i need to know the compression readings done dry and wet, this will give me a better idea as to what is going on. if compression's are well down and this is causing the problem, you will be looking at spending some serious money to get it fixed. there will be no simple fix for low compression's.

Remove the valve cover and see if the camshafts spin when cranking the engine over.

If I replace the camshaft sensor will it help with my compression?

Hello,

Unfortunately, no , it will not. Low compression is from either worn piston ring, worn valves, blown head gasket, or a cracked cylinder head or engine block. Those are the only things that will cause low compression. Basically, low compression means tearing into the engine and doing mechanical parts replacement. I have included a few links below for you to go to below;;
https://www.2carpros.com/articles/how-to-test-engine-compression
https://www.2carpros.com/articles/symptoms-of-low-compression
https://www.2carpros.com/articles/the-reasons-for-low-compression

Please go through these guides and get back to us with what you decide to do. If you want to fix whatever it is causing this condition, we can help you that as well.

Thanks,
Alex
2CarPros

i have a2006 chevy malibu with compression on 2 cylinders. low or none on the other 2 cylinders.my question is this a blown head gasket? also could burned valves be the cause of low or no compression on 2 cylinders? p.s the car over heated.

Could be the headgasket if the cylinders are adjacent to each other-could be a timing belt/chain problem and also be rings,valves and cylinder wear-

You can get a cylinder leakage test to find out actually where its leaking at

I have a '99 Malibu that wouldn't start, put in a new battery which worked for a week or so, but then another problem with starting. Jump started it to get it going, but it was running rough (missing). Took it to the dealer thinking new alternator and tune-up, but dealer states there is no compression in one of the cylinders. What could be the likely cause of the compression leak, and can thay contribute to the non-starting issues? Any idea of cost to get things repaired? Is it a better option to look at a replacemetn engine?

Hi yogibear001, Welcome to 2carpros and TY for the donation

One bad engine cylinder requres a major repair and can be expensive-If it was me I'll consider a replacement engine

If it was only a valve problem -all is need is a recondition cylinder head. Depends where the leak is-by doing a cylinder compression and leakage tests

Did they gave you the test results there's somehing fishy here and I don't like it get a second opinion on the leaking cylinder and get back with me asap-