Have a crank no start issue. Got it to start earlier, ran it for a while. Shut it off and tried to restart. No start. Can't hear the fuel pump @ key on. Relay and fuse good. Tried jumping @ red wire in engine compartment, still nothing. Seems to be a wiring issue to me as it is intermittent, and acts up when its cold out
SOURCE: go to start and needles on dash bounce as if they have a pulse
Hi...
I read your problem.
Is there a few step to diagnostic or try to fix your car.
Follow this simple steps.
Inspect the RALAY " Starter relay # 47. or interchange with other one just for testing.
1- Check the Fuse " IGN E Fuse number 22 " 10amp. on under hood fuse BOX fron Neutro swicth
And power to the power to the Neutro safetly switch.
2-- Check the Fuse " CRANK fuse # 17 10amp. Under hood fuse box. 12v. from Ignition switch
3- check the fuse " IGN A fuse # 34 40 amp. under hodd fuse box. Constant 12v. to relay.
With ignition switch in ON position.
Crank Fuse only when you try to start. If no power 12v. come when trying to start.
REmove the steering column covers. to get axces to the IGNITION SWITCH.
Trying to start check if 12 v on the YELLOW wire exist. if not. Check if there a 12v on the RED wire
If not Inspect FUSE # 34.
But if there a power on the red wire But not ON yellow wire Trying to start.
Just REPLACE THE IGNITION SWITCH. Electrical part.
Check the NEUTRO SAFETLY SWITCH. connector under the car. Repair as need.
CHeck the BACK-UP lights, some times come damaged making a short on the Neutro safetly switch. ...
OK.. I hope this help on your problem.
If you need more information letme know.
I'm a Mechanic and have all the information for repair vehicles.
Thank you for use fixya....
SOURCE: shuts off while driving. no fuel pressure. pcm fuse blows/ fuel pump relay inserted.
Sounds like the fuel pump is shorted.
SOURCE: My 99 GMC sonoma wont start..
ok... there are a couple of things you can do. i must have miss typed on the cap,rotor . in the back of the motor where the plug wires conect that is the cap that is bolted to the distributor with two torques bits that i believe are t15 in size. there may lie your problem. the posts inside are made of aluminum and they get coroded and dont alow the proper spark. the other commen problem is the exhaust the catalitic converter becomes pluged up. something you can try is remove one of the oxigen sensors and try to start it up if it runs the cat needs replaced. the o2 sensor is a 7/8 nut to remove it. give it a try
SOURCE: My 1994 suburban engine stops. No fuel, no MIL light.
I checked all of the fuseable links and they were all good. Next I decided to check all the power wires to the ECM and also the grounds from a wiring diagram because the Mil is controlled by the ecm and the bulb was good. The ecm is located behind the glove box. Bingo, the orange wire was only reading 3-5 volts at the ECM, but 12.5 volts after the fuseable link at the underhood fuse block (passenger side firewall). I ran a temp wire directly from after the fuseable link to the orange wire at the ecm and the ecm turned back on and the Mil or "check engine soon" light came on too. The truck started up and has never run smoother.
Note that at first the truck just stalled out and I could restart it right away with no error codes. Eventually the stalling became more frequent with longer reset times required. Once it threw a "code 54" and I thought it was fuel related as each time the gas stopped and I could still start the truck with gas poured into the TB. Ignition ok. My fuel pump turned on and ran if I tested it. I even checked the pressure regulator and the fuel filter to no avail.The orange wire that powers up the ecm is technically part or the fuel pump relay circuit as it also feeds the fuel pump relay 12.5 volts all the time. The thin orange wire from the fuse block is joined to two other thin orange wires in the large group of wires that heads to the ecm along the firewall behind the engine. I had to dig it out of the many wires to find it and remove a lot of tape. It is amazing to me that this one little orange wire could cause so much grief and be so hard to track down. I could not have afforded to take this problem to the Dealer.
SOURCE: 1987 GMC sierra , no fuel pump power.
The inline fuel pump fuse on the passenger side firewall is good? Are you jumping it with 12 volts at the test lead or the fuse?
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