P38A Arghhhh - footwell sound deadening soaking

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awkwardbob

awkwardbob

Well-Known Member
Posts
578
Location
Glasgow
Hi again,

I’ve a couple of pressing jobs to do on the P38 and I happened to lift the carpet in the drivers footwell to find the foam sound deadening was absolutely soaked.

it’s been dry here forever so I’ve no idea how long it’s been wet or from where.

I’m not even convinced it’s water -it feels kinda sticky, has a faint odour and a hint of a yellow colour.
-I’m worried it might be something more sinister.

amazingly, there’s no sign of corrosion on the floor pan or the wiring so I should be grateful, and I did have a leak from the pollen filter which I sealed up last summer so maybe it’s just moisture that’s got stuck there and can’t escape ?
Anyone have any ideas about what it might be / where I need to look ?
Thanks again

Bob
 
brianp38dse said:
Heater matrix o rings would be a good place to start looking.
Click to expand...

I was kinda dreading that…
I may have to prioritise the VCU, one corner of EAS playing up and an ABS sensor going ‘open circuit’ while sitting idle for 3 weeks (Low voltage perhaps ?) as she’s due her MOT and we’ve some trips pending -assuming I can get the problems fixed !
 
Also, you can link the two rubber heater pipes together in the engine bay to stop it getting worse with some copper 15mm elbows and a bit of straight. Has your coolent level dropped, even a bit made a mess in mine. Sweet smell with the blower on hot was my give away plus wet in that vent.
 
That would all explain the coolant loss !
Someone has done it previously as the pipe is cut and ‘handy’ holes drilled in plastics.
Need a long driver, I don’t suppose you happen to know the size of the head ?
 
Flossie said:
Also, you can link the two rubber heater pipes together in the engine bay to stop it getting worse with some copper 15mm elbows and a bit of straight. Has your coolent level dropped, even a bit made a mess in mine. Sweet smell with the blower on hot was my give away plus wet in that vent.
Click to expand...

just bypass the heater matrix ? Might work as a temp fix…
 
I found cutting the ducting the worst part, it's pretty tough stuff and access to cut it wasn't the best so the hard part has been done for you. A morning's work.
 
Flossie said:
I found cutting the ducting the worst part, it's pretty tough stuff and access to cut it wasn't the best so the hard part has been done for you. A morning's work.
Click to expand...

did you have to drain the coolant to do this ?
No biggie as was going change the rad hoses and water pump anyway
 
I would remove the ducting(lower part) and get a torch up there with the engine running to confirm its O rings just incase its matrix or even the alloy pipes going into it. Cutting the ducting is awfully close to those pipes and they might have been nicked by the saw, I was super careful but still slightly caught them, no harm done though. Plug the clocks back in before you start it just incase it upsets somethingo_O
 
awkwardbob said:
did you have to drain the coolant to do this ?
No biggie as was going change the rad hoses and water pump anyway
Click to expand...
I just drained the rad. Bin bag cut open wedged under the plastic vent housing and hung out the door let's any water from undoing the matrix run outside. I barely had any though.
 
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