Rattle Trap
Well-Known Member
Can someone please tell me what the unplugged modues are here? They've bled out so I disconnected them with no operation effect.
Firewall Modules
- Thread starter Rattle Trap
- Start date
80mirada
Well-Known Member
The orange one is the EGR timer, I don't remember the other one
Rattle Trap
Well-Known Member
Yeah, thats what I've always figured too. Why would there be THREE of the stupid things tho? It's a '81 T&C. Autozone searched every EGR category and couldn't find it. Must not need any of them.
80mirada
Well-Known Member
Not sure, I need to find my later book to even guess.
EGR timer (Orange)
The other two I believe to be for air pump diverter valve (switches from upstream to downstream air flow). The other could be 318 passenger side heat riser vacuum control – which I don’t think applies to /6.
It might also be an A/C cutoff module when throttle position reaches certain position or an anti-diesel module (keeps throttle open a bit after shutoff.
I don’t have any manuals for ’81 car to look at – to know for sure.
Just because the “goo” from backside of module melted out doesn’t mean the module is bad. I have seen brand new modules, still in box, with that goo melted out and stuck to box. As long as the PC (Printed Circuit) board is not touching the can or chassis, then you should be fine (except for the gooey mess).
I think the goo batches varied on humidity and contents available on hand. It might also had to do with the alcohol level of the “mixer”.
BudW
The other two I believe to be for air pump diverter valve (switches from upstream to downstream air flow). The other could be 318 passenger side heat riser vacuum control – which I don’t think applies to /6.
It might also be an A/C cutoff module when throttle position reaches certain position or an anti-diesel module (keeps throttle open a bit after shutoff.
I don’t have any manuals for ’81 car to look at – to know for sure.
Just because the “goo” from backside of module melted out doesn’t mean the module is bad. I have seen brand new modules, still in box, with that goo melted out and stuck to box. As long as the PC (Printed Circuit) board is not touching the can or chassis, then you should be fine (except for the gooey mess).
I think the goo batches varied on humidity and contents available on hand. It might also had to do with the alcohol level of the “mixer”.
BudW
Cambo
Active Member
timer is gone, and the EGR valve vac supply capped off (previous owner). I think the time delay might have been just for start up.
Rattle Trap
Well-Known Member
Thanks guys. It's been running just fine with them all unhooked. But now I caught a wife of antifreeze and a slight steaming of the windshield. Not looking forward to pulling the dash out to service the heater core right now, so it's parked.
