crazyforgms Posted October 15, 2012 Report Share Posted October 15, 2012 we have a 94 pontiac grank prix with 190.000 miles need to replace fuel pump . has any one cut the floor under the back seat to get the pump out if so were do you cut the floor? dont want to drop the tank & open up a can of worms. just try to get the car through the winter. thank you ken Quote Link to comment Share on other sites More sharing options...
ricklovin93 Posted October 15, 2012 Report Share Posted October 15, 2012 dropping the tank isnt that bad Quote Link to comment Share on other sites More sharing options...
94 olds vert Posted October 15, 2012 Report Share Posted October 15, 2012 Under the back seat? No. In the trunk yes. Take caution if you go that route! Don't want to damage any fuel lines or the tank itself. Quote Link to comment Share on other sites More sharing options...
ricklovin93 Posted October 15, 2012 Report Share Posted October 15, 2012 take the bolts off of the front of the straps (back bolts are a pain in the ass imo) disconnect filler neck tube, vent tube and sending unit connection, bada bing, 1 hour at the most to drop the tank, depending on your rust situation Quote Link to comment Share on other sites More sharing options...
Timm Posted October 15, 2012 Report Share Posted October 15, 2012 Yeah, I was dreading changing the fuel pump on my cutty for months. Then I finally tackled it, and it only took maybe a hour and a half. And mine was RUSTED! I was really contemplating cutting the trunk up too. Glad I didn't, it's really not bad. Just watch out for rust getting in your eyes!!! Quote Link to comment Share on other sites More sharing options...
ricklovin93 Posted October 15, 2012 Report Share Posted October 15, 2012 the thing that took me the longest was the fact that i was putting a whole new tank+straps in, and the two bolts that are tucked up above the rear suspension are a pain in the ass to get to Quote Link to comment Share on other sites More sharing options...
94 olds vert Posted October 15, 2012 Report Share Posted October 15, 2012 When I did drop my tank, I just decided to replace everything. Tank, fuel lines, the fuel sender, and the fuel pump. And if your neck is rusted away wouldn't hurt to get a replacement. Quote Link to comment Share on other sites More sharing options...
Crazy K Posted October 15, 2012 Report Share Posted October 15, 2012 do it right. no hole. drop the tank. Quote Link to comment Share on other sites More sharing options...
Schurkey Posted October 15, 2012 Report Share Posted October 15, 2012 When I did drop my tank, I just decided to replace everything. Tank, fuel lines, the fuel sender, and the fuel pump. And if your neck is rusted away wouldn't hurt to get a replacement. do it right. no hole. drop the tank. YUP. Don't forget to inspect the in-tank wire harness, too. Known corrosion problems. I've been working on a write-up on this very subject. Have photos. Stalled on the electrical portion, in part because I'm convinced that ALL these cars have insufficient wiring to the electric pump. Mine have an entire volt of voltage drop from battery + post to the fuel pump power wire in the trunk; and it seems to be distributed through the whole system mostly in the small-gauge wire, not so much in the connections, fuse, or relay. The wire gauge spec'ed by GM is just too small for the amperage and length of wire. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.