Thread: What's this in a 3.9 engine bay ('92 MY)?

Aftermarket alarm system?

Aftermarket computer module of some sort? Possibly car alarm.

I can't help you with the mystery item, but I'd take a punt and say that the car has been re-sprayed at some point. The wiring loom has red overspray on it. Perhaps it's been in a prang?

To me it looks like an accumulator on top of the motor looking thing. Where does the large pipe go to?

It could be an oil pressure accumulator to prime the engine with oil when the ignition is turned on. Not stock.

The ABS accumulator in those is usually on the LH guard AFAIR , but maybe someone switched it to put something else there?

Air trailer brakes?

Regards Philip A

Originally Posted by PhilipA

To me it looks like an accumulator on top of the motor looking thing. Where does the large pipe go to?

It could be an oil pressure accumulator to prime the engine with oil when the ignition is turned on. Not stock.

The ABS accumulator in those is usually on the LH guard AFAIR , but maybe someone switched it to put something else there?

I think we are talking about different things. The round black thing with the yellow label is the accumulator on top of the ABS brake pump. The OP is referring to the item between the coolant reservoir and the ABS pump - the bagged item with a harness going into the cabin via the RH side of the decker panel just below the broken bonnet light switch.

The rubber bag looking thing is part of the car alarm.

What boring answers.... I'd rather hoped it was the 'Beam Me Up Scotty' module for when it breaks down.

Nothing as interesting as that... On my '95 model (July 1994 build) there is a fuse-box right where the rubber bag is...

- Maybe a waterproof bag to keep the fuse-box dry ??? Or something electrical...

My accumulator is hidden under 'stuff' at the back, circled in red and a red arrow showing the pipe that joins it to the pump.
Never seen one mounted on TOP.