S90 throttle body sticky

[pac_jb]

Hi,

Anybody facing this issue, s90 70mm throttle body becomes sticky after the engine warms. It's very hard to drive during traffic jam, I tried to adjust the throttle body cable pulley screw , helped abit but still sticky.

 

[vr2turbo]

Spray WD40?

 

[pac_jb]

I sprayed wd40 but still sticky

 

[hazziq]

Well u better get it sort out quickly,
last time my throttle just suddenly got stuck at WOT.
End up ditching s90 and went back to stock

 

[^pomen_GTR^]

what i heard from other fellow mech...

need to do some spring mod at the butterfly to reduce the spring tension so that it doesnt becomes sticky.... (probably shaft lubrication/minor adjustment needed also)

 

[vr2turbo]

what i heard from other fellow mech...

need to do some spring mod at the butterfly to reduce the spring tension so that it doesnt becomes sticky.... (probably shaft lubrication/minor adjustment needed also)

Reduce? not strengthen to put the TB back?

 

[g4i8y0t]

Hi,

Anybody facing this issue, s90 70mm throttle body becomes sticky after the engine warms. It's very hard to drive during traffic jam, I tried to adjust the throttle body cable pulley screw , helped abit but still sticky.

Try lubricate the throttle cable. I once faced this issue too, turned out it's actually the cable that is causing problem.

 

[egb18c]

Or maybe the valve expand at higher rate than the body of the throttle body, thats why its only sticky after a the engine is fully warm.

 

[pac_jb]

The throttle feels better now, I adjust the throttle cable pulley screw again two full turn anti clockwise, the pedal feels more softer now

 

[sweelt]

Hopefully not affecting tps reading....just in case

 

[vr2turbo]

Hopefully not affecting tps reading....just in case

Adjust throttle cable usually is for free play....

 

[sweelt]

ok , thanks for clarify