Boost Solenoid Maintenance

[PHANTMXR6]

Arkayne, why would you think this is required for the FG?

Unless you are having some sort of boost related issue it won't be needed.

As the FG is a young car still, I wouldn't imagine any FG's 'requiring' this for some time.

[wal89]

which hose goes to the wastgate and which goes to the housing.

cheers joel

[MYBAXRT]

the top hose goes to the wastgate mate

[timbos99]

I am writing this to let members know about a very common problem that affects the Turbo Falcons. The electronic boost solenoid gets sticky after about 10,000km.

10,000 goes by pretty quick... young or not? does this need to be done...

[PHANTMXR6]

If you feel your car is down on performance and this may be the casue by all means, go ahead and do it.

But to do it for the sake of it wouldn't really be necessary.

[SuckSqueezeBangBlow]

going to do this when I have time,

but how come there is only two hoses?

my last turbo car had a boost control solenoid which had three outlets -

1. from turbo to solenoid

2. from solenoid to actuator

3. from solenoid back to turbo inlet (but mine went to atmosphere)

I thought the last pipe would be necessary to vent air away from the actuator to hold boost longer (the whole point of the solenoid). Yet reading this thread some people are saying its capped off?

Does anyone know what PSI the stock actuators will open at?

[brownhornet]

just completed the solenoid maintenance. noticeable difference - more consistent coming onto boost. awesome post!

I too have that crimp clamp - just takes a little more effort to get off.

Just wondering - why isn't this part of the scheduled Ford Service???

[Benji_vs]

Because they are stupid lol, yeah that crimp clamp is a pain but it does come off with a little effort, I replaced mine with a standard screw clamp, makes servicing 10 times easier.

[Metasploit]

Just did this tonight. Used a good 5-10 seconds of WD40 up both the hose and into the tube which in my case was metal. I was expecting the shower of WD40 that spat back out to be dirty and black but it came out really clean. Anyway I put it all back together, started the car and let it idle for 5 mintues then took the car for a really good blast.

I wasn't really concerned with how it was coming on boost before, and I think it may have slightly improved how soon and how smoothly the car picks up as the turbo starts to kick in but I can't say it was an overly noticeable improvement. Thanks for the post though, I'll still keep this up every 10 thousand k's, can't hurt.

Cheers,

Darren.

[Henry]

I have done this a few times now, and do notice a significant improvement but after a few days it returns to slow and incomplete boost (probably 4 or 5 psi) with the rest of the boost sometimes coming in quickly at differing points in the rev range.

Does anyone here agree that its time to replace the boost solenoid?

If so I would appreciate some instructions on how to unplug the wiring as I don't want to stuff things up.

Cheers