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the ECM fuse was fine. We live 150 miles from a town so we borrowed a fuel pump relay from our junk truck. Had fuel immediately. Ran about 2 minutes and died. Now no fuel. Attached the old pump (that I was sure was good) to the plug -in at the tank. It makes noise for the 2 seconds, so it works.These GM wiring diagrams provide schematics for vehicle model years 1988 through 1998. Fig. 1: Index of Wiring Diagrams. Fig. 2: Sample Diagram: How to Read and Interpret Wiring Diagrams. Fig. 3: Wiring Diagram Symbols. Fig. 4: 1988-98 GM-C/K Series Wiring Schematic. Fig. 5: 1988-98 GM-C/K Series Wiring Schematic.Step 1: Choose a nice spot to pull your car up. You might use a flo o r jack for convenience. You also need to find a location for an inertia switch that is hidden and within reach. Step 2: Make way for wires to run from the switch to underneath your automobile by creating a minimal hole in the car's floor.Relay - Fuel Pump 1991 GMC Truck S15 Jimmy 2WD 4.3L TBI 6cyl The Relay - Fuel Pump Under hood, driver side, upper firewall, mounted in relay block Read full answer Jul 02, 2009 • 1991 GMC S-15 JimmyFuel pump relay is located in your fuse and relay box under the engine hood by your battery. The relay will be labeled fuel pump. Good luck and keep us posted. relay is located on driver side under hood mounted on fender back from battery use a test light there is a couple of relays there also going to distributor good luck.About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...My 1991 GMC 1500 2 wd 5l, has new, fuel pump, relay, I c m. No power to the feul pump fuse. When jump fuel pump runs. - Answered by a verified GMC Mechanic. ... 07 sierra 1500 4.8L 2wd. Replaced bad fuel pump 4 months ago, truck cranks but fuel pump not pumping fuel.The fuel pump relay on a 92 gmc 1500 is located on the passenger side of the firewall behind a black plastic cover. Where is the starter relay switch located on a 1999 Silverado 1500 4.8?Well gotta love getting humbled by the circuit design from an OBD 1 fuel system. I apologize for my voice, I was losing it due to a cold. I don't work on O...6. Hold the multimeter probes against the other 2 prongs on the relay. Plug the multimeter probes into the ports on the bottom of the machine so you can use them for testing. Hold either of the probes against one of the prongs labeled with 30 or 87. Then press the second probe against the last prong on the relay.Same engine and TBI. First check is always the filter. Proper fuel line pressure should be between 9-13 PSI. I had two issues that caused a similar effect. First one was caused by the power wire to the fuel pump getting pinched between the bed and the truck frame. Second one was when the fuel tank switch failed.Jun 17, 2009 · Here is the location of the fuel pump relay. This is the right-hand rear of the engine compartment. I will check and see if I can find a fuse in the circuit. Thanks, XXXXX. Hi again, I found two possible schematics (ECM & PCM), and each of them show a fusible link and an inline fuse around the relay. ECM. Remove Truck bed to Install Fuel Pump on 2000 GMC SIERRA 1500One Man Job, if you don't have help.The 2016 GMC Sierra has 3 different fuse boxes: Engine Compartment Fuse Block diagram. Instrument Panel Fuse Block (Left) diagram. Instrument Panel Fuse Block (Right) diagram. GMC Sierra fuse box diagrams change across years, pick the right year of your vehicle: Engine Compartment Fuse Block. 61.The engine compartment fuse block is in the engine compartment, on the18259 posts · Joined 2008. #5 · Jul 14, 2014. The 14. Location. usa. you will need a multi meter I figure. Pull the ECM-B fuse and see if there is continuity to pin 87 of the fuel pump relay on one side of the fuse socket. The other side should be 12V hot all times. If you have 12V on one side as you should, the problem is between the other side and pin 87.An expert that has 1 follower. The fuel relay should be located in the main fuse/relay box under the hood on the drivers side. If the inside of the cover does not list which relay it is you may have to go online in your browser and put in " 1995 Chevy Blazer fuel pump relay location". You will get back a picture of the fuse box and the location ... Applications:96-97 CHEVY & GMC C/K 1500/3500 Series Dec 18, 2007 · Here is a schematic of your fuel pump wiring: You can try unplugging the fuel pump relay and putting 12V to the GRAY wire and see if it comes on. GMTechBernard. Category: Chevy. Satisfied Customers: Experience: GMTechBernard and 87 other Chevy Specialists are ready to help you. Ask your own question now. GMTechBernard. The GMC Sierra is a popular choice among

The gas engine models appear to have a fuel pump control and a fuel pump. The electrical manual - GM UPFITTER - Body Builder Manuals - does show a pin on the ECM having an output to the fuse and relay on circuit 465 for fuel pump relay control, but no mention of circuit 465 anywhere else. However, it shows this location on the truck also - see ...Gray wire carries voltage to pump when relay is energized. There is also an oil pressure switch in the fuel pump circuit, once you crank it enough to bring up oil pressure and the switch closes, the pump should run, regardless of the relay. The relay itself won't energize with out signal from computer, green wire, white tracer. Was this. answer.I said it a hundred times in the video so I might as well type it out as well lol. The purpose of this video is to collect enough evidence to justify getting...In this video, I show how a fuel pump relay works and how to bypass yours. I also show how to rewire your fuel pump for an upgraded fuel system or race car. ...Acadia. 2011. The 2011 GMC Acadia fuel pump relay location is in the glove box. It is the middle relay. A faulty fuel pump relay prevents Your engine from running as the fuel is not supplied. There are many signs of a bad fuel pump relay including loss of power, engine not starting, pump not making the common noise, and vehicle catching on fire.

GMC Sierra Fuel Pump Relay. Buy Online. Pick Up In-Store. Add your vehicle. Get an exact fit for your GMC Sierra. Year. Make. Model. Engine. 1-3 of 3 Results. Filter. Sort by. Brand. Price. Duralast Relay 20840. Part # 20840. SKU # 867016. Limited-Lifetime Warranty. Check if this fits your GMC Sierra. $2599. Free In-Store or Curbside Pick Up.The underhood fuse block is located in the engine compartment, on the driver’s side of the vehicle. GMC Sierra – fuse box – engine compartment. Fuses. Usage. 1. Right Trailer Stop/Turn Lamp. 2. Electronic Stability Suspension Control, Automatic Level Control Exhaust. 3.…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. Jan 8, 2016 · A faulty relay may allow the ve. Possible cause: 1 Answer. Maybe check under the dashboard near the steering column. SOURC.