Following on from my other post, got the truck back with the 4WD light flashing. Now, i did ask him to double check if the 4WD was working, and he said it was, and was changing back into 2WD fine, so I'm not worried that its stuck in 4WD (I drove 4 miles home from the garage and nothing broke)
Bit of backstory, Had the ticking noise, took it in to get a service and for him to find out what the noise was, so engine has had a full service, filters and fluids, he has had the top cover off and the rocker off to check timing and do tappets, buts that's pretty much all he has had apart in the engine, so do you think, from being in those areas, he could have moved/touched, left off something that would throw the 4WD light flashing?
I have had a cursory glance and cannot see any vacuum hoses off.
The 4WD actuator rod is freely moving by hand
The 4WD lights stays solid when in 4H and 4L
The vacuum tank is solid, not rusted through and fittings are good
Most of the vacuum hoses i can reach quickly seem good, not blocked.
I have read most of the posts that state blocked metal vac pipes etc, but i was just thinking, because this has only happened after he has been in the engine, that maybe its something simple, but I just don't know where to start.
When i first got the truck, the 4WD light used to flash when i turned the ignition on (periodically, sometimes it wouldn't flash for days, then maybe once in a week) but only with the ignition on, and once started, the 4WD light would go out. So i know there may be a small vac leak somewhere, but once started, the engine seemed to hold decent vac, as there was no other issues.
Would there be anything else not working properly if a vac pipe was off or split or on the wrong way? is the 4WD vac system a closed loop? or tapped off the engine vac system?
EDIT: I have ordered some vac hose to replace everything i can get too, and will order some solenoids from Milners if i cant rectify this with new hoses, just wanted some advice on where to start in the bay as ill get a bit of time tomorrow to have a good look