2000 Chevrolet S10 Q&A
2000 Chevrolet S10 Question: truck wont start after fuel pump replacement
Did you disconnect battery and remove the relay before switching pumps? This ensures no power can short fuses or relays. Otherwise, test for power at pump with a multimeter. Retrace your steps on the wiring and make sure all harnesses are hooked back up. - csubak30
Agree with everything c b 3 0 says! - Bed has no affect on pump circuit. Also if you had to replace the connector for the new PUMP MODULE, (i hope) make sure color code is correct, some dont match up. Read instructions again! Be sure the four wire connectors are making good contact. Was it a failed pump or a anti theft problem to start with? Security light in dash flashing while cranking? It does have a fuse as answer 1 says check it, under hood, relay should click each time key is turned on or starter is bumped, listen for it! Check to see if ground circuit to pump is good, black wire with white tracer i 'think', If no ground, i may be able to help. Post results. - pushrod
does you have pwr to relay and fuel pump? - globalhelper
For future reference, I had this same problem when replacing the fuel pump on my 2002 s10 4.3L. Searched forever for an answer. It turns out that in order to remove the bed of the truck, you must disconnect the ground for the fuel pump, which attaches in the rear on the drivers side. IIRC it ran either in or alongside the harness for the tail light wiring. Once I hooked that back up, my truck started right up. - Mike2002s10
when starting, the engine runs real rough and then evens out and runs good . when re-starting i need to go wot or it wont start, when it does its rough again then evens out . ect is whithin specs...