Timing chain jumped

Hello! I do not believe the engine "jumped time"...But merely overheated...Fill it back up with 50/50 and a little water...Start the engine and visually look to see where the leak is...Send a comment ...Guru...saailer

I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867

No, The 2.4lt quad 4 has a timing CHAIN when it starts to get sloppy the chain must be replaced. As these engines have an internal ignition pack under the valve cover ther is no adjustment. Unless you are an acomplished mechanic I don't suggest you takle this on your own.

i`m assuming this is a dohc motor.have you checked the ignition module and the connections at the module.its located on the cover where the electrical connector fastens to it.it could also be a jumped timing chain possibly by a bad chain tensioner or worn out chain.

If the timing belt (chain ) broke or jumped the car would not have restarted after your son shut the engine off. (The motor would have stopped on it's own.) Timing belts are an issue with most modern cars and if the motor is what is referred to as an interference engine there will be valve damage. The other possibility is that some components from the butterfly valves in intake manifold were sucked into the cylinder head causing damage to the cylinders , pistons and valves. No matter what the cause its going to cost a lot to repair.

Timing Chain and Gears REMOVAL & INSTALLATION 2.2L Engine Fig. 1: The timing marks on the sprockets should be in alignment. If not, turn the crankshaft until the marks are aligned
Fig. 2: The timing chain tensioner is retained by a Torx head bolt (1) and a regular hex head bolt (2)
Fig. 3: Unfasten the camshaft sprocket bolt
Fig. 4: Remove the camshaft sprocket and the timing chain at the same time . . .
Fig. 5: . . . then remove the tensioner assembly
Fig. 6: Compress the tensioner spring and insert a cotter pin or nail in the hole provided to hold the tensioner in position

2. Fig. 7: Exploded view of the timing chain and sprockets - 2.2L OHV engine
   

2.3L and 2.4L Engines .

1. Fig. 8: The chain must be in the "timed'' position - 2.3L and 2.4L engines
   Fig. 9: Remove the timing chain guides
   
   
2. .
3. Fig. 10: Timing chain assembly retaining bolts - 2.3L and 2.4L engines
   
   
4. .
   1. Fig. 11: Reloading the tensioner to its "ZERO'' position, then install to the chain housing
      
   
   

if it is a o tolerance motor u have a good chance that happen,,

If you hear a loud clank when you try to start it, but nothing turns, that is the starter trying to turn the engine, but the engine is locked up. If the timing chain/belt jumped, the engine would still spin.

Hello.
In 1997 the Sunfire used 2 different engines.
A 2.4 overhead cam or a 2.2 overhead valve engine.
Both use a timing chain setup.
Hope this helps you along.
Best of the season to you.

KL

this could have happened if the timing belt broke. You are supposed to change the timing belt every 60 to 90 thousand miles.

Is the motor still running???? All depends where the piston an valve are when it jumps off?????