Hello, i need help in a major way if anybody has any information. 1987 iroc lb9 but now it has l31 vortec but still tpi. original fuel pump bit the dust after 30 years so i ordered a walbro pump, installed it and car ran great for 2 weeks than would not start no fuel pressure. so i thought well maybe i just got a bad pump .so i decided to go back this an ac delco pump, installed the ac delco pump and ran great for 2 days now no fuel pressure again. WTF!!!!.this time i dug a little deeper and thought maybe its just a relay or something, but i jumped the ALDL on the fuel pump circuit and i have 12 volts all the way back to the tank. has anybody ever seen this where 2 pumps bad in a matter of 1 month??? i mean i guess its possible but damn the original pump lasted 30 years. need help before i send my car over a bridge. thanks

 

I had a brand new pump installed and it was defective after a couple weeks...


ac delco stuff is hit or miss these days so honestly it could very wel lbe defective!!!

 

Hey, thanks for reply.what pump did you end up going with and how long has she been in there???

 

Well the shop put in a delco,....so they went with another delco lol

So far its been over half a year!


I put a delphi in my truck...that was almost 10?? years ago and its still going strong!