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Ford Explorer Community - Maintenance - Modifications - Performance Upgrades - Problem Solving - Off-Road - Street
Explorer Forum Covers the Explorer ST, Explorer Sport, Explorer Sport Trac, Lincoln Aviator, Mercury Mountaineer, Mazda Navajo, Ford Ranger, Mazda Pickups, and the Ford Aerostar
It's a '95 Explorer. Ran fine in the morning. Went to start in the afternoon.
Tried to run a bit, coughed twice, then nothing. If I continue to crank the
engine I can definitely smell fuel. Any thought would be appriciated.
It's a '95 Explorer. Ran fine in the morning. Went to start in the afternoon.
Tried to run a bit, coughed twice, then nothing. If I continue to crank the
engine I can definitely smell fuel. Any thought would be appriciated.
Lets assume your fuel pump is working. Tell me if your check engine light comes on when you first turn the key to run and goes out when it is cranking.
Some more investigation, and the fuel pump relay is clicking. I removed the protective cap from the fuel rail on the passenger side of the intake manifold (at least I assume this is the fuel rail?) and depressed the valve with a screwdriver - no fuel came out.
Some more investigation, and the fuel pump relay is clicking. I removed the protective cap from the fuel rail on the passenger side of the intake manifold (at least I assume this is the fuel rail?) and depressed the valve with a screwdriver - no fuel came out.
thats not the safest way to test for fuel pressure. Also, as you crank the injectors are spraying fuel and the pump shuts down in 1 second if there is no start, so there may be no pressure after the failed start.
Put on a fuel pressure gauge on that fitting and see if you have pressure when you turn the key. There are other redneck ways to do this, but you don't want a fuel bath.
The pressure should "hang in there" for a bit. I doubt that your fuel pump is running.... although a "click" might mean something, you need to hear the pump running or test it with a known power supply to get it to run.
if you press the schrader valve and nothing comes out right after cranking your fuel pump is likely not coming on or it is dead.
You can use a tire pressure gage (the round dial type, $3ish) to check the fuel pressure once or twice. It will kill the gage but its better then nothing.
Check it while key is in on position, should see 30# + if no, then your pump is not priming
suspect relay and fuse
listen for fuel pump to prime
if gurgling sound is heard and no pressure pump is fubar
You can also check the vacuum line leading to your pressure regulator (right near schrader valve) and see if it has gas in it. Gas in there = regulator is shot.
No gas = good
