Good way to check. By the starter, if you have a hex plug you have a version 5, if you have a riveted plug you have a version 4 engine. Version 4 engines are believed to susceptible to cracked engine block.
Symptoms:
[video=youtube;G4rVitSfSC8]https://www.youtube.com/watch?v=G4rVitSfSC8[/video]
Symptoms:
- Car doesn't idle properly
- High engine temperatures
- Car engine misfire
- Car engine smells of burning sugar
[video=youtube;G4rVitSfSC8]https://www.youtube.com/watch?v=G4rVitSfSC8[/video]