Delphi FG0070 Fuel Pump Module - High Performance Replacement for GM Vehicles | Perfect for Chevy, GMC, Cadillac & More | DIY Auto Repair & Maintenance

I decided to go with this higher quality pump instead of one of the many much cheaper knock-offs. It did take a few hours to finish the job but a lot of that time was spent cleaning out the gas tank, which is something that should absolutely be done. I went with the truck bed removal approach, while I don’t want to do this job again, If I had to do this again I would go with the same technique. If you have someone to help the truck bed removal is easy to manage (many YouTube tutorials) . Once the bed is removed the pump is easily accessible with a few electrical connections and a few hoses. A pair of snap ring pliers will save you a lot of time and frustration when removing the pump. One of the electrical connections did have to be spliced in for the new pump but the instructions were very clear with wiring and diagrams (the pump comes with the required connector). A heat gun will also come in handy when installing the new wiring harness. I read where a lot of people had problems with the new gasket and it was “too tight to fit”. I can confirm that the new gasket is a tight fit but it is possible to fit and it should be a tight fit. I used a small amount of grease around the entire gasket and pushed it down with steady pressure and a slight rocking motion. It does take a little bit of effort but it is doable. Don’t get frustrated and push too hard or try to brute force it into place. Just take your time and work the gasket is slow and steady. I have driven the truck a few hundred miles with the new pump and so far everything has worked great and maybe it’s my imagination but the throttle response seems much better. I have noticed that the fuel fill gage on the dash is more accurate with this new pump (before it would read full for much longer then drop to E quickly after 3/4 mark). If anything goes wrong I will try to update this review.Installed on 1999 GMC Sonoma 4.3L