I have a 97 Sonoma that the fuel pump won't engage. I checked out and found that I had no power going to pin 86 when you turned the key to start. I replaced the wire coming from the ECU so there is power there now but I'm still not getting the pump to work. If you supply power to pin 87 the truck starts. I also switched relays and still no start

I have a 97 Sonoma that the fuel pump won't engage. I checked out and found that I had no power going to pin 86 when you turned the key to start. I replaced the wire coming from the ECU so there is power there now but I'm still not getting the pump to work. If you supply power to pin 87 the truck starts. I also switched relays and still no start 2 Answers

I installed a fuel pump on my 2002 GMC Sonome engine 4 cyl. It started righd not startet up. But, after driven 2 miles, stalled out and died. Since then I could start only after taking out pump out of tank and reinstalled. Oil pressure is more than 40 PSI. I can not find any voltage from terminal.. I put a hotwire (jumper) from 87 terminal to 30 Terminal in fuel pump relay terminal, still no juice. I put a wire from batter to straight to pump . The new pump made noise . Still could not start. In this morning I put a jumper from 87 terminal to pump. I managed the engine running. I could start without jumper about 5 times. While the engine running, I decided to take my truck to road test. Whiel the engine running, I was gathering some tools and equipment for in case of broke down, the engine shut off. Why does my truck do this? I need help, please. 3 Answers

I installed a fuel pump on my 2002 GMC Sonome engine 4 cyl. It started righd not startet up. But, after driven 2 miles, stalled out and died. Since then I could start only after taking out pump out of...

No gas going to the fuel pump car will start up if you put gas inside of the carburetor but it won't stay on 4 Answers

My truck won't start it's a 1991 GMC Sonoma if you put gas inside of the carburetor car will start up but won't stay on I don't know to do where should I start?

When I turn on the headlights the fuse blows and I no longer have headlight or tail lights but the brake lights and turn signal still work. I even took out the bulbs and it still blows the fuse 1 Answer

On my 1997 Sonoma when I turn on the headlights it blows the fuse and I even lose my tail lights but my brake light and turn signal still work. I took out all the bulbs and it still blows the fuse

there its not power going to my fuel pump 6 Answers

I replace the fuel pump on my gmc sonoma 2000 lsl model but there its not reciving power, i change the fuel pump relay but still not working