Stuck PSE valve
Discussion
Porkupine said:
Have been on a few recent blasts...it certainly isn't bad at all.
Anybody unplugged the wire in the engine bay?
I think that will leave them in quiet mode, if it was an easy fix you wouldn't need the Carnewal remote switch for £150.Anybody unplugged the wire in the engine bay?
Shame as on the Vantage you just remove a fuse & you're good to go
ATM said:
Got a stuck valve on my driver side UK RHD car. If its stuck in the car turned off position it will be PSE On right?
One of mine was stuck when I bought my car. The valve spindle was seized in the position with the actuator extended, which is the engine-off position with the valve open as I understand it.If you can't move the valve operating arm easily by hand with the engine off, it's likely the valve spindle is seized. See my post earlier in this thread for how I fixed it.
DRH986 said:
My 981 had a stuck near side valve when I bought the car, shortly after an OPC major service which didn't pick it up.
The valve spindle was seized but I managed to free it off with Plus Gas, WD40 and lots of patient effort gently pushing and pulling on the actuation crank after disconnecting the actuator until it eventually freed up. Probably took an hour. That was at 26k miles, now 33k and 18 months later and it's still fine.
I regularly manually check both valves are free by reaching under the rear bumper before start up. Takes a few seconds.
Got it thanksThe valve spindle was seized but I managed to free it off with Plus Gas, WD40 and lots of patient effort gently pushing and pulling on the actuation crank after disconnecting the actuator until it eventually freed up. Probably took an hour. That was at 26k miles, now 33k and 18 months later and it's still fine.
I regularly manually check both valves are free by reaching under the rear bumper before start up. Takes a few seconds.
So you just disconnected the little ball joint end off the actuator and then tried to get it rotating?
What did you use to get the ball joint end off?
What sort of lubricant do I need to get in there to keep it working for many many more years?
I can't remember exactly how to disconnect the actuator rod from the ball joint on the arm but I'm sure it's straightforward.
Just be patient trying to free it and don't be tempted to use too much force.
Apart from WD40 and PlusGas to help free it off, I didn't try to lubricate it for normal use. Just regular checks with engine off and it's been fine since.
Just be patient trying to free it and don't be tempted to use too much force.
Apart from WD40 and PlusGas to help free it off, I didn't try to lubricate it for normal use. Just regular checks with engine off and it's been fine since.
You don't even need to disconnect the ball joint. You can push the valves back and forth with it all connected. They are just spring loaded pneumatic actuators, which can be overpowered easily enough.
To disconnect the ball joint, they have a tiny 'wire' which locks the ball in the socket. It can be popped off and hinges out of the way. Then just pull the socket off the ball.
To disconnect the ball joint, they have a tiny 'wire' which locks the ball in the socket. It can be popped off and hinges out of the way. Then just pull the socket off the ball.
EGTE said:
The reason these stick on is due to a small plastic diverter valve failing in the engine bay.
You can get replacement valves for about £40 each and the valve is peanuts even from stealers.
£150 job at most. OPC quotes of £1500 are daylight robbery.
Its the actuator rod that seizes on the actual exhaust? You can get replacement valves for about £40 each and the valve is peanuts even from stealers.
£150 job at most. OPC quotes of £1500 are daylight robbery.
tedblog said:
EGTE said:
The reason these stick on is due to a small plastic diverter valve failing in the engine bay.
You can get replacement valves for about £40 each and the valve is peanuts even from stealers.
£150 job at most. OPC quotes of £1500 are daylight robbery.
Its the actuator rod that seizes on the actual exhaust? You can get replacement valves for about £40 each and the valve is peanuts even from stealers.
£150 job at most. OPC quotes of £1500 are daylight robbery.
- The solenoid can fail - electrically or pneumatically
- The actuators can fail - mechanically - either by failed diaphragm or corrosion as discussed above
- The butterfly valves can fail - corrosion due to lack of use usually (or our damp/cold/salty environment)
I have had a few with multiple issues - the vac piping on a 997 was all over the place - someone had been pulling and refitting vac lines to diagnose it; once that was sorted the solenoid was found to be split and leaking between the holding bracket and the solenoid body; got that sorted and only one would switch properly - seized butterfly. Freed off the butterfly and it would then only partially close - actuator diaphragm leaking.......
Replaced the diaphragm and retested it; it pulled up then wouldn't release - turned out the final issue was dirt in the connecting line; presumably from the deteriorated diaphragm! It's a simple system but can have various causes when it's not working.
witko999 said:
You don't even need to disconnect the ball joint. You can push the valves back and forth with it all connected. They are just spring loaded pneumatic actuators, which can be overpowered easily enough.
To disconnect the ball joint, they have a tiny 'wire' which locks the ball in the socket. It can be popped off and hinges out of the way. Then just pull the socket off the ball.
I've tried wiggling it by hand and it wont budge. I cant decide if its the butterfly or the actuator as everything is just stuck. I'll get some different chemicals on there and report back.To disconnect the ball joint, they have a tiny 'wire' which locks the ball in the socket. It can be popped off and hinges out of the way. Then just pull the socket off the ball.
Swine Enthusiast said:
EGTE said:
The reason these stick on is due to a small plastic diverter valve failing in the engine bay.
You can get replacement valves for about £40 each and the valve is peanuts even from stealers.
£150 job at most. OPC quotes of £1500 are daylight robbery.
Just been quoted £3480You can get replacement valves for about £40 each and the valve is peanuts even from stealers.
£150 job at most. OPC quotes of £1500 are daylight robbery.
I would ask for a printed quote to frame and put up on the wall in my downstairs loo
Swine Enthusiast said:
EGTE said:
The reason these stick on is due to a small plastic diverter valve failing in the engine bay.
You can get replacement valves for about £40 each and the valve is peanuts even from stealers.
£150 job at most. OPC quotes of £1500 are daylight robbery.
Just been quoted £3480You can get replacement valves for about £40 each and the valve is peanuts even from stealers.
£150 job at most. OPC quotes of £1500 are daylight robbery.
981Boxess said:
Swine Enthusiast said:
EGTE said:
The reason these stick on is due to a small plastic diverter valve failing in the engine bay.
You can get replacement valves for about £40 each and the valve is peanuts even from stealers.
£150 job at most. OPC quotes of £1500 are daylight robbery.
Just been quoted £3480You can get replacement valves for about £40 each and the valve is peanuts even from stealers.
£150 job at most. OPC quotes of £1500 are daylight robbery.
981Boxess said:
I would have thought the first thing to ask is what they have quoted you £3480 for, it certainly isn't for replacing a £40 vacuum valve.
Well apparently the actuators and vacuum valves are inside the exhaust (are they?) so you cannot replace the actuators but have to replace both back boxes of the exhaust lolzThe parts are so cheap, seems like a swindle. Spoke to an indy and they sort of said the same thing.
Worse part is, the car is under Porsche warranty but the service tech said they usually won't cover exhaust items as these are deemed consumable/corrosion elements.
The PSE is technically a feature of the car that is meant to last the life of the car (terms from the warranty). The same way the spoiler button controls the spoiler, I'd expect the valves controlling that to be replaced should they fail, then the PSE function, should in my opinion (obviously) be covered by my £1k yearly warranty.
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