1999gmc
Active Member
Bought a Walbro last april and a month and a half ago I noticed it wasn't coming on with the wait to start light sometimes. Sometimes it would come on for a couple seconds and the wait to start light would be on for a few more seconds after. Sometimes it worked like it should. But every time I would be at a spot I could check for power and ground at the pump, it would run. So one morning, it didn't run at all. So I got my power probe out and it had power and ground at the pump. I jumped the relay, still didn't work, Put power and ground directly at the pump, and still nothing. So I knew for sure it was the pump and not my wiring or relays. The pump started working later that day so I figured I would just order a new one and swap it out when it got here. Then I found out they were on back order for a few weeks. New pump came in today. Put out in, and I can't believe how much better the truck runs. I opened the tee valve with the truck running today(pump was working) and fuel ran out. But it must have had lower pressure because it runs so much better with the new pump. Long story short. I'm getting a fuel pressure gauge permanently mounted so I can make sure it has enough pressure all the time. Thanks Leroy for getting the pump to me so quick once they come in!!!