Holden Sedan Range

This generation of Holden engines was prone to failure of the crankcase ventilation valve (PCV). When it failed, it caused a vacuum leak in the engine that could easily cause rough running and hard starting. It would also possibly trigger a check-engine light.

Depending on the model and year of the car, you might be able to fit a replacement PCV, but sometimes the solution was to replace the entire rocker cover assembly, which included the valve in question. In many cases, the valve failure was accompanied by a failed rocker cover gasket that leaked oil on to the spark plugs, making the car run even more erratically. Don’t be tempted to try a second-hand PCV from a wrecked Barina. The chances are every high that it’s PCV will be trashed, too.

You need to go back to basics here. Check that the battery is connected firmly and that all the connections and low-voltage leads that power and trigger the starter motor are in their correct places and receiving power. Don’t forget to check for earth straps and cables that might have been left off in the reassembly process, too.

If the car is getting power (and the dashboard lights suggest it is) then there’s a problem between the ignition key and the starter motor. Tackle it methodically, checking for power (a test lead or multimeter will be invaluable for this) as you work your way towards the starter motor and you’ll probably find it’s something really simple and basic. Make sure the fuse or relay for the starter motor hasn’t been fried during the gearbox swap, too.

If you look at the market for Holden’s long-wheelbase Statesman and Caprice models historically, it seems they do experience an uptick in value as they become older and rarer. But, then, that goes for a lot of makes and models, too.

The really collectible modern Holden models are more likely to be anything with a HSV badge or a Commodore SS with the V8 engine. The very last SS Commodores with the SS-V option (with better brakes) have already proved collectible, as has the super-rare HSV W427. That said, even these models have suffered the same value drop as many other cars post-Covid.

So will a late Caprice ever be collectible and valuable? Possibly, but you’ll be waiting a while. In reality, values of them could have a way to fall yet, before prices start heading upwards as collectability calls.