I'm pretty sure my fuel pump is almost done. It's been taking longer to start and hesitating under mild acceleration. Also a few times it's run really rough after restarting it in hot weather for a minute or so.

So I checked the fuel pressure and it won't go any higher than 22-25 psi. Should be 48-55 according to the manual. Took a vacuum line off and it wouldn't stay running unless I gave it some gas, pressure still didn't go much higher, so that seems to rule out the regulator according to the other threads I read. It's a wonder it's still running as well as it does.

Before I dump a few hundred on a new pump I want to make sure my diagnosis is correct with you guys.

Thanks a bunch!

 

Filter?

 

Yeah I should change that first.

 

from the gas tank side dump the filters contents into a clear container. if its clean your pump is on a short fuse and could strand you somewhere at any time. if the pressure is the same running as when not running i would say its the pump. it would take a really pluged filter to prevent pressure to come up when the motor is not running.

 

thank god that it has symptoms that it's failing, some times fuel pumps they just stop working in the middle of the road.

 

I can't even get the filter off. The quick connect came right off, but the threaded fitting is rusted on and my wrench keeps slipping off. I caught the contents into a container and there seemed to be a little sediment of some sort but I don't know if it was from the filter or debris from outside of the filter that came off when I loosened the quick connect.

 

was that from the tank side, cant remember which side has the fitting. if it was plugged you would bet a crabload of stuff. careful not to hurt the fuel line.

 

I don't know how I missed your post craby, it never showed up in my subscribed folder with a new post.

Anyways, I did finally confirm the pump is bad. I bought a new filter and a fuel line repair kit, hooked the new filter and line directly up to the gauge, turned the key on, and the pressure still didn't even get up to twenty.

I found the AC Delco pump for $227 on amazon so I ordered one there. Over a hundred less than rockauto.
Amazon.com: ACDelco MU1846 Fuel Tank and Pump Module Assembly: Automotive

I have one quick question though, what is the preferred method/tool to cut the hatch?

Thanks

 

Got it in and running Tuesday. Fixed three problems: slow starting, rough running after start up when warm, and hesitation under mild acceleration. All gone.

I was wondering though, what thickness should I get the plate to cover it? And where can I a piece of stainless steel for that?

 

machine shop will have some. may get a good deal on a scrap piece that will work.