what r the little button things on my fuel lines and why so many? can they go bad? 2 way valve?

Not Like A Push Button But Maybe A Regulator Of Some Sort?

take a pick and post it - I've got a '91 Loyale and have no clue what you're making reference to ....

it's a '92 loyale kind of looks like the one on the fuel pump outlet. no pics i'm at work.

I think he mean the Fuel dampner in the supply and return lines. SPFI GL/Loyales have 1 in each line very close to the TB. They are to "smooth out" or prevent spikes in the pressure in the fuel line, and provide a constant presure at the injector. However, many people have removed them without issue.

Can They Clog Or Just Go Bad

They can clog I suppose. Other than that, I've never heard of them going bad. I mention running without them, because they just get ommitted during SPFI conversions, or replacing of fuel lines sometimes.

Thanks For The Info Get Rid Of Them

Thanks For The Info Get Rid Of Them

No one is telling you to get rid of them. There has never been a documented case where they have caused problems, except maybe leaking.

 

Subaru installed them for a reason. Whether or not they are truly needed, well, that's up for debate.

IMO, just leave 'em be unless they're leaking or you've exhausted all other items that could be causing a running problem.

They really can't clog - there's nothing inside them. It's just an open space used as an "expansion" chamber for fuel pressure spikes. If the pickup tube in the tank sucks air for a few seconds, these smooth out the fuel flow so the injectors see constant pressure.

 

Removing them is just stupid. It's costly (FI line is expensive), and uneccesary. And besides occasionally rusting out, they never fail either.

 

GD

Thanks For The Info Get Rid Of Them

 

No, All I meant wa that they aren't a "critical" part. Like if you found that it was actually clogged or something, you could ditch it, but there is no reason to do so "premptively".