What part is this?
Noticed a small but broken vacuum hose coming off the part. Part can be seen in the attached photo "in front" of the black plastic intake manifold cover, between the 5th and 6th compartments. The broken hose is attached via the obvious elbow. Sorry for the lack of technical savvy...What is the part? and the effect of the broken hose? Going to dealer for hose, but need proper description of hose/part.
Thanks
Thanks
Thanks..looking at the bottom right of the plastic/black intake cover (between the last 2 cover compartments) is a silver/grey part with a vacuum elbow/hose coming off of it. It is this small hose that is broken.
I think he'* taking about the thing circled in red....which is called the FPR or Fuel Pressure Regulator. I believe its a common 1/8" rigid vac line. It its disconnected it will cause drive-ability issues with the engine and may cause a check engine light to come on.
Which reminds me I need to test mine by disconnecting it for a while 10-15 min while car is running with the vacuum hose off, and ensure no gas is dribbling out from it..
I hope mine passes.
I hope mine passes.
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1997 Buick Pk Ave (Soft Ride) Suspension!
1997 Buick Pk Ave (Soft Ride) Suspension!
Joined: Aug 2013
Posts: 1,014
Likes: 172
From: Northern California







Art, the best way to test the FPR is to use a vacuum pump with some clear hose and apply vacuum to it with the engine running and see if gas comes through the clear hose. If it doesn't hold the vacuum it'* bad.
when i went to the dealer to get mine for my 98 bonnie they had the purge valve hose, that fpr hose, and the boot that connects them both at the throttle body all listed as one part number and it wasent labeled that well, it said like vacuum lines or something. i replaced it all because the boots start to dry rot and you will be chasing intermittent vacuum issues which is a pain. it was only like 30 bucks anyway
If that connector is dry-rotted I reccomend inspecting all soft connectors, and hoses.
There are a few, one comes fuel tank EVAP from underneath the rear, it goes from tank to hard line, it is not too long.
There is one that comes out of the lower rear of the upper intake manifold, it runs into a wiring harness on the left rear UIM area.
There are a few more, once this snow melts I'll try to work on taking pics of all of the ones I replaced on my car.
All are easy to replace, and pretty cheap since you can buy the hose by the foot at a local auto parts store.
There are a few, one comes fuel tank EVAP from underneath the rear, it goes from tank to hard line, it is not too long.
There is one that comes out of the lower rear of the upper intake manifold, it runs into a wiring harness on the left rear UIM area.
There are a few more, once this snow melts I'll try to work on taking pics of all of the ones I replaced on my car.
All are easy to replace, and pretty cheap since you can buy the hose by the foot at a local auto parts store.








