fuel delivery question 89 4.3 tbi
#1
01-09-2012, 10:15 PM
my 89s fuel pump went bad last year. replaced it and ran for awhile like normal and now it wont start up. the last time i tryed to start it it fired and would just die when i gave it gas. i figured maybe the gas was old so i added 2/3 gallons tryed again and got nothing. got another 3 gallons today added to the tank. this time i poured a little over the butterflys and she cranked over. i pulled the throttle cable and saw a few drops come out the injectors i though the fuel looked darker then the fresh gas. but it just may have been the light in the garage. im not sure so im thinking im gonna try the fuel filter first before i move to the injectors or regulator. any thoughts on where it could be bad?? injectors vs regulator vs fuel filter. i got get the truck moved to my new place.
Last edited by dragnblazer; 01-10-2012 at 11:11 PM.
#3
01-10-2012, 10:10 AM
I can hear the pump priming still. when it went bad I didnt hear anything. I got the pump at autozone
#4
01-10-2012, 11:07 PM
just gonna try the fuel filter first next sat. then report back. if it wont fire i can allways tow it to the new place. i have till end of febuary to get it running/moved.
#5
01-11-2012, 12:50 AM
One you got was an airtex,which is hated in the blazer world. Im pretty sure its bad. Even if it still works. Go to carquest and buy a delphi. Or go to the stealership and buy a ac delco.
Buy either this guy
Amazon.com: Delphi FE0115 Electric Fuel Pump: Automotive
or this guy
Amazon.com: ACDelco EP386 Fuel Pump: Automotive
better pump for as much as the airtex pump..Cool stuff.
Buy either this guy
Amazon.com: Delphi FE0115 Electric Fuel Pump: Automotive
or this guy
Amazon.com: ACDelco EP386 Fuel Pump: Automotive
better pump for as much as the airtex pump..Cool stuff.
#6
01-11-2012, 01:52 AM
Electrical parts from any of the discounts parts stores are no good unless you pay more and get the name brand. I bought a fuel pump to go on my sons truck and it would not work, long story short, i returned so many pumps they give me my money back and would not sell me any more lol. I got a fuel tank of a parts truck and installed it and the truck fired and ran great. So, a good used pump is better than a new cheap one.
#8
01-11-2012, 01:15 PM
yes decause when I drop fuel over the butterflys it fires and burns the fuel then dies. well if it is the pump im glad I got a warantty. at the time of changing the fuel pump I was moving and was on a deadline.
Last edited by dragnblazer; 01-12-2012 at 10:16 PM.
#9
01-12-2012, 02:23 AM
Put a fuel pressure gauge on it and see what it says... but yea... sounds like a pump issue. You did replace the fuel filter when you changed the pump right?