Checked power to fuel pump and no power is flowing. Remove the bed to change fuel pump. check that before buying and installing a new pump. Hello everyone. I am not comfortable with jumping the the fuel pump. At fuel pump relay socket the dark green and white wire powers the coil side of the relay. My 1990 S10 gave me the same thing. This should happen for 2 seconds when the key is turned on. Hi with key on the ecm green white wire has 11.70 volts w/o relay. there is no power on the other two wires. Fuel Pump Relay Wiring Diagram (Automatic Transmission Only) NOTE: The wiring diagram illustrations in this article cover only: 1993 4.3L, 5.0L, and 5.7L GMC/Chevrolet pickups with the 4L60-E automatic transmission.For the 1994 fuel pump wiring diagram, check out the following article: 1994 Fuel Pump Circuit Tests (GM 4.3L, 5.0L, 5.7L). With relay same wire is only reading 0.07 volts. 91 s10 4.3 no power to fuel pump × Help us help you. I believe the ECM tells the relay to work via the green/black wire to Pin 85. My Blazer died last year. I’ve … Was this. no power getting to the fuel pump - We hvae a 98 Chevy s10. I would first verify that the main EFI, fuel pump, and ignition fuses are not blown, as these can sometimes cut off power to the fuel system. Fuel Pump Relay Wiring Diagram (Automatic Trans. If relay clicks - and no power to fuel pump - check ECM B 20 amp fuse in under-hood bussed elect center. installed new fuel pump .try to test before putting the bed back on, fuel pump wouldn't do anything..... check car wiring 3 times everything was good..... turns out we disconnected the ground to remove the bed at the driver side rear reconnected truck fired right up. It then transfers control of the fuel pump to another relay. Sign in to reply. 2000 Chevrolet S10. The fuel pump relay is supposed to only energize the fuel pump for a few seconds to pressurize the fuel system so that the engine has enough fuel to start, then shut off. I jumped the relay to get power direct to the fuel pump and I can hear it running. Do a continuity test on the gray wire-from fuel pump connector to the fuel pump relay-. 100,000 MILES. 1992 Chevrolet S10 Blazer. I discovered that the system is actually designed to do that! Black and white wire is good ground.fuel pump works when org and grey wire is jumped. Step 2. See no broken wires anywhere-all fuses on panel under dash are good-all connectors are intact. I did check the pump and it does run when it is powered up. 10 2.5L 2whl drv Pick up No power to new fuel pump-no voltage..fuses. SPONSORED LINKS. 2000 Chevrolet S10. - 1993 S10 2.6L New Fuel Pump stalled while driving. But when I disconnected the fuel feed line to the throttle body there was no fuel at all coming out. The engine turns just no gas. Make sure you have enough room to work around the truck. I replaced the fuel pump and now there is no power to the fuel pump, checked fuses and relays there ok. 0 replies Report. What seems to make the problem better or worse? What could be the problem. If fuse is good - use a jumper wire between relay socket contacts 30 and 87 to make sure the fuel pump runs. Asked by in Ligonier, PA on November 24, 2017. Unplug the fuel pump relay, which is located in the fuse/relay box in the engine compartment on 1995 to 1997 2.2L engine models. 2000 Chevy S10 V6 4.3 . brand new fuel pump. I have a 02 Blazer. The fuel system in your 1997 Chevy S-10 Blazer consists of an in-tank fuel pump, fuel injectors and an on-board computer. Once it cranks enough to bring up oil pressure and the switch closes, the pump will run even w/o the relay. No power to fuel pump on a 1999 S10 4.3 Fuses and relays are ok, but also have a battery drain using a test light on - Chevrolet 2000 S-10 question Each component should be tested for … 92 S-10 2.5L 2Whl Drv Pick up No power to new fuel pump-no voltage at connector to pump. My problem was one of the two black ground wires at the back drivers side under the bed next to spare tire on frame rail. Airtex is committed to providing the most up-to-date, in-depth fuel pump replacement information that professional technicians need to diagnose, repair and install today's complex fuel . By isolating each component and testing separately from the other parts, the cause of failures can easily be found. . 17 Answers. And nothing. 1999 Chevrolet S10. Asked by ldmoiles in Corunna, MI ... their is a good ground and continuity threw the wire to the fuel pump. I jumpered relay contacto and have 12 volts at contacts, but still no power at fuel pump connection. I have a 1987 chevy s10 blazer with a 2.8 motor. I have 12 volts on dark green/white wire from pcm to relay with ign on, I have 12 volts on orange wire to relay, constant. 1993 S10 2.6L New Fuel Pump stalled while driving. I get no gas to the throttle body. With that in mind, most of the symptoms of a bad fuel pump revolve around the vehicle stalling out or not running at all. When you first turn on the key, no crank, the fuel pump should run for a few seconds then stop. AUTOMATIC. S10 Blazer / 1992 / no power to fuel pump relay; No power to fuel pump relay. 2.4L. Changed relay and pump, seemed logical-- no current to fuel pump, checked codes NO CODES no power to either side of the relay when turned on on or starting mode. The fuel pump relay works as it should. Looking at the bottom of the underhood fuse block where the fuel pump relay is theres … Check ECM BATT fuse no.9 20amp if okay check for power at the orange wire on the fuel pump relay socket pin A2. In this video I am showing how to test the fuel pump electrical circuit using a test light and scan tool. does a 1985 chevy s10 have fuse for fuel pump or throttle body and were are they New fuel pump no power to fuel - Chevrolet 1987 S-10 Pickup question Without gas your S10 will not run at all. If your Chevy S10’s fuel pump goes bad, no fuel (or not enough fuel depending on whether or not it’s out all the way) can enter the engine. I have no power to fuel pump. There shows to be an oil pressure switch in parallel with the fuel pump relay. I have a 1991 S10 Blazer 2door 4.3, 700r4, 4 wheel drive, Tahoe edition. I always have power to Pin 30. It's just a redundant power supply to the fuel pump. Four door. brand new fuel pump. Hi. For the 1993 fuel pump wiring diagram, check out the following article: 1993 Fuel Pump Circuit Tests (GM 4.3L, 5.0L, 5.7L). 2001 GMC 3500 8.1L engine with no fuel pressure. This video shows how to diagnose and replace a fuel pump for a 2003 Chevy S10 with the 4.3L V6. 03 S10 Fuel pump not getting power 1 Answer. 1993 Chevy S10 - no power to fuel pump. 2000 Chevy S10. Only) NOTE: The illlustrations and info in this page apply only to 1994 Chevrolet/GMC pickups with a 4.3L, 5.0L or a 5.7L engine. Reply Delete And I can’t get any power to the fuel pump. If no, could be wiring to PCM or PCM. Step 1. If you there is no power to the fuel pump or the relay, then there may be a possible electrical issue with the vehicle. 4 CYL. After buying and installing a new fuel pump I realized that I didn't have any power to fuel pump. Died on freeway like out of gas (had 3/4) no fuel pressure. 1993 Chevy S10 - no power to fuel pump. Change Your Chevy S10 Fuel Pump. I purchased it as a bailed out on project. And I found the gray wire had corroded and broke off from the replacement plug to the pump. Park your Chevy S10 in a safe place with a level surface. THANKS ....STEAMIN BEEMAN. Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily! I’ve changed the relay. With the 4.3 l V 6. I have tested this when the issue is occurring and have confirmed that no signal is … My fuel pump is not getting any power, neither with ignition on or when I’m trying to start my car. Asked by willbillclark in Clovis, CA on November 27, 2014. Sign in to reply. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Asked by garyy in Santa Cruz, CA on June 20, 2010. I know this has been covered to death but I can't find an answer. 91 s10 4.3 no power to fuel pump was created by gregster. If I got wire the grey wire to the fuel pump the car starts perfectly.I need help restoring power to my fuel pump the right way. It has a new fuel pump, the relay clicks on/ off when turning it to the on position, I do not here the fuel pump turn on when I go to turn on the truck. No power to fuel pump on grey wire at fuel pump relay. Hello. 2001 s10 4.3 .