whole turbo or just the cartridge?

**MrF** · 17th April 2019, 18:25

So I had my solenoid off to have a nose at it. filter screen totally clogged though some brake clean shifted it, also sprayed some cleaner down the vac pipe outlets with some "stuff" coming out of the other outlet after a few sprays, sprayed some penetrant spray back down after that to lubricate things.
Give it a test drive later / tomorrow and see if any improvement to things, if so then its a new solenoid on the purchase list (then again it is OEM, one of the early ones with a metal ring between the 2 halves of the body rather than being glued together as the later ones were) albeit one of the fasteners was seized solid and the rubber ripped so its now held by 1 for the moment, not the greatest of designs tbh...

**MrF** · 18th April 2019, 00:01

After I "cleaned" my solenoid it ran well for a few minutes then got very laggy then came back, so ordered a new solenoid from GPS as that seems to confirm my suspicisions given that was the only thing I meddled with. Its OEM and very early in design so I reckon its due a replacement, £53 and change from GPS for a genuine replacement.
On a sidenote this car is suffering a spate of stuff wearing out in one go.....

**justin32** · 18th April 2019, 00:15

Originally Posted by MrF

After I "cleaned" my solenoid it ran well for a few minutes then got very laggy then came back, so ordered a new solenoid from GPS as that seems to confirm my suspicisions given that was the only thing I meddled with. Its OEM and very early in design so I reckon its due a replacement, £53 and change from GPS for a genuine replacement.
On a sidenote this car is suffering a spate of stuff wearing out in one go.....

be interested to see if this cures your issue. Parts do wear out and I think a lot of people just assume its going to be the usual bits that go but in reality all parts wear at some point

**Teapot** · 22nd April 2019, 18:18

A new boost solenoid has been found to be required on most of the z19's that I have remapped recently. They are always knackered by 10 years/100k.

**justin32** · 22nd April 2019, 20:24

Originally Posted by Teapot

A new boost solenoid has been found to be required on most of the z19's that I have remapped recently. They are always knackered by 10 years/100k.

That's interesting to hear. Mines on 152k and have had my suspicions that it might not be working 100%

**LastOne** · 22nd April 2019, 21:38

I dunno... if a Z20NET driver thought a boost solenoid needed replacing, he'd be on the phone to the nearest Vauxhall dealer and ex-Saab dealer and Neo Brothers simultaneously, saying Right which one of you can get it to me first? And then he'd drive down to Vauxhall HQ in Luton anyway to get one even quicker. You Z19 chaps are all "hmm...yea...maybe...s'pose I could look into doing sumat about it in July...2021...if the weather holds out that is...". Must be the Fiat/Italian factor...

**Dog_Book** · 22nd April 2019, 21:41

**bonehead** · 22nd April 2019, 23:47

Originally Posted by Dog_Book

didn't you manage to break one, once?

**Dog_Book** · 23rd April 2019, 06:34

Originally Posted by bonehead

didn't you manage to break one, once?

Quite catastrophically yes, but I didn’t dither in getting it fixed along with new consumables like it’s 3rd cambelt dmf and clutch kit amongst others

**MrF** · 23rd April 2019, 15:35

Originally Posted by Teapot

A new boost solenoid has been found to be required on most of the z19's that I have remapped recently. They are always knackered by 10 years/100k.

Just swapped mine, big difference in performance /mpg however still getting a squeal on hard throttle application. Does that sound like the turbo has got excessive play? @Teapot any recommendations for a hybrid turbo supplier? Any on eBay any good? -gap , BTP etc?

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