i just bought a 2005 cobalt ss when i bought the car it had jumped time and bent valves in the head ... i ended up replacing the head and put it in time , it started up but ran rough i pulled the valve cover off to see that it had jumped time again due to a bad tensioner so at this point i did not feel like putting it in time again so i took it to the chevy dealer. after they put it in time and replaced the tensionier the car will not start...also it is getting fuel and spark i also did a compression test on it and it has good compression . im so lost and have ran out of ideas and help would be greatly appreciated

 

Take it back to the stealership?!

 

cam position sensor?

 

yeah that already ended up costing me almost 600$ lol i will never take anything back there. what a joke was quoted at 200$

 

i had an extra cam position sensor from another motor and changed them out with no result.

 

Check all grounds

 

Wat exactly is it doing when u try to start it? Just turning over, over and over again?

 

yeah it turns over but just doesnt start

 

Mine did that and it ended being that my fuse box wasnt bolted down all the way. So check all your ground wires. Make surw they are all tight.

 

Hmmmm... My suggestion would be, since ur lost and dont know where else to go, double check everything. Make sure uve got no fuel leaks, check and make ur getting spark all the way to the plugs. I would skip the compression test since uve done that once already and u cant really miss an issue there. Other than that idk man. It could be something weird then like stale fuel or a bad ground as someone mentioned. If u still find nothing come back here and we're r going to have to think outside the box.

Not for nothin. Whens the last time u had the car running smooth and normal?

 

is there a ground on the fusebox? im glad you said this because the previous owner had this car all screwed up and there isnt one nut/bolt holding the fusebox down ..... would of never thought to try that hopefully that is whats going on , going to give it a try in the morning , thanks .

 

when i bought the car it had 9 broken rockers all intake valves were bent a bad timing chain tensioner and a broken timing chain guide .... wasnt in to good of shape and aside from this problem the drivetrain should be good to go .. cant really complain tho only paid 500$ for the car