Fuel Pump Won't Prime
#1
Thread Starter
Joined: August 23, 2004
Posts: 3,599
Likes: 3
From: Bay Area, California
Fuel Pump Won't Prime
Hey guys,
I hopped in my Mustang for the first time in 6 months, turned the key and all looked and sounded fine - aux lights/dash came on- but I can't hear the fuel pump prime. When I go to start it the starter spins well, but no dice on getting it to start. I replaced the battery out of guilt for letting the car sit so long, and I checked the fuse. I looked at the relay in the trunk, and I could not hear it click to turn on like I would expect a relay to do, but I'm unsure of how audible it should be. Any thing I should try? Thanks! Good to be back on TMS
I hopped in my Mustang for the first time in 6 months, turned the key and all looked and sounded fine - aux lights/dash came on- but I can't hear the fuel pump prime. When I go to start it the starter spins well, but no dice on getting it to start. I replaced the battery out of guilt for letting the car sit so long, and I checked the fuse. I looked at the relay in the trunk, and I could not hear it click to turn on like I would expect a relay to do, but I'm unsure of how audible it should be. Any thing I should try? Thanks! Good to be back on TMS
#3
Thread Starter
Joined: August 23, 2004
Posts: 3,599
Likes: 3
From: Bay Area, California
About half a tank. I assume the pump won't prime if the rail already detects pressure. Is that correct?
#5
Thread Starter
Joined: August 23, 2004
Posts: 3,599
Likes: 3
From: Bay Area, California
#6
#7
My 92 did this a few years ago. Stored it live every other winter since 92 and all of a sudden the pump wouldn't prime. Confirmed voltage at the emergency cut off switch (have you checked that?) and dropped the tank to find two wires were shorted against the metal hanger inside the tank. By then I already had a new pump in hand so went ahead and installed it anyway. Fired elroght up after that. Good luck.
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