Hi, my son has a fuel injected blazer, it won't start, they poured gas
in the carb it stayed running until i burned it out, people tell him it
could be fuel pump which is in gas tank or the fuse, but noone knows
where the fuse is to check it, could anyone tell me if it does in fact
have a fuse and where it is? He checked in fuse box but there is no fuse
that says fuel pump or anything in that nature, Thanks for any info.
Have one person turn on key to the energized position but not to
At the same time, have a second person lay next to the fuel tank and
listen for a light whirring noise of the fuel pump...If you don't hear
anything, then the pump isn't running.
The fuel pump relay is on the firewall (do they still call it that?)
right above the wiring next to (and above) the power boost there are
two small black units (about 1inch by 1 inch), the one closest to the
driver's side is the FP Relay
PS ...invest in a Haynes repair manual (82 thru 94) for S-10's and
<<It saz there's a fuel pump fuse located in the eng comp but I've
never seen one>>
My guess.....it's the fuel pump, they don't last forever, and are
fairly east to change (if the tank isn't fully
FYI - it's throttle body EFI, not carb (semantics... )
The fuel pump fuse is located on the main fuse block. It'll be a 5amp IIRC
As the other poster said... have someone turn the key just to on. While
they're doing that, grab the relay and feel for a click. Also listen at the
tank (as already posted).
The pump will only run for about 1.5 seconds. Then you have to turn off the
key, wait about 10-15 seconds, and cycle it again to make it go again. If
it's a 1991, and you've gone this far on the original.... consider yourself
Make SURE to change the intank filter, and the external one when you replace
If it is similar to my 88 it is under left side of of dash,in fuse
box-10 amp red fuse has ECM on it.I replaced my relay,my oil sending
unit and it still didn't run the fuel pump.I took the relay off and ran
a wire from one of the relay wires from the pump through the firewall
harness,to the fuse box inside thats hot when the ignition switch is
turned on,and I've been driving it this way for the last 2,000
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.