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Sticky Blowoff Valve. Need Help

chef_stagea

By chef_stagea,
in South Australia

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chef_stagea Grand Master

chef_stagea

Posted
Posted

can some one plz describe the effects a sticky blowoff would have

the car jolts 3 times once after you go to about 20% throttle or off boost i spose after you give it over 1/2 boost or so...

i took the bovs out yesterday and one was slightly sticky to push in and would sometimes close momentarily stopping halfway....

is this my drama with jolting? or it is something eles that needs attendance 2?

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MYCEF3 Collaborator

MYCEF3

Posted
Posted
can some one plz describe the effects a sticky blowoff would have

the car jolts 3 times once after you go to about 20% throttle or off boost i spose after you give it over 1/2 boost or so...

i took the bovs out yesterday and one was slightly sticky to push in and would sometimes close momentarily stopping halfway....

is this my drama with jolting? or it is something eles that needs attendance 2?

So does it feel like its missing or actually been forced back?!?

Not something as simple as plugs?

U checked them?

chef_stagea Grand Master

chef_stagea

Posted
  • Author
Posted

its not a miss as its only when u come off boost. i cleaned all the afm traced back the blow off returns and found that one blow off had a sticky shaft inside... so i put it down to that... the plugs were only changed back a bit but could allways do with a check up.clean i spose.

MYCEF3 Collaborator

MYCEF3

Posted
Posted

Hmmm.... Well like ur saying, ur coming off boost (shouldnt be missing then) and its doin the jolting!

I just dont see the BOV jolting the car?!?!

Seems like a fuel/air/spark thing normaly!!!

Krishy Grand Master

Krishy

Posted
Posted

try completely blocking off the BOV's and see if the car still jolts etc....if not then problem solvered but if problem still there then get some second hand BOV's

but to my little knowledge i dont think its the BOV's causing that issue......

nicr4wks Experienced

nicr4wks

Posted
Posted

Checked none of the hose clamps have come loose and all intake hoses are on nice and tight?

Had something similar a while a go, when backing off at around 70kmh the car would jolt, was just a loose clamp.

MYCEF3 Collaborator

MYCEF3

Posted
Posted (edited)
this might be dodgy, but i see no harm, take off the bov or leave it on and spray it with CRC or WD40. to loosen it up.

Good sh!t LOL

Duct tape, zippi ties and WD40 fix anything :(

Any luck so far Adam???

Edited by MYCEF3
kidafa Veteran

kidafa

Posted
Posted

All ready tried a clean and lube.. it improved movement a bit but still doing it....

Perhaps someone has a spare set of 33 gtr stock or AM BOV's to lend cheff for half a day to see if that rids the issue?

chef_stagea Grand Master

chef_stagea

Posted
  • Author
Posted

lol its just such a prick coz basicly the whole front bar needs to come off to get to them lol....

tryed lubing it and it didnt do much. if i blocked it... it will just flutter and hopfuly get rid of the jolt... ill also check plugs... but too all the intake out and sused out all the clamps and hoses and no love...

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