Long Starts
#1
Long Starts
I just bought a 1995 F-150 Supercab, the truck runs perfect, however getting it to actually start is sometimes an adventure. I turn the key and it just turns over for maybe 10-15 seconds, then finally starts up. I just replaced the ECM, Cap, Rotor, And all plugs. could this be maybe a fuel issue? Or is it a Spark issue? I'm stumped
#3
I just bought a 1995 F-150 Supercab, the truck runs perfect, however getting it to actually start is sometimes an adventure. I turn the key and it just turns over for maybe 10-15 seconds, then finally starts up. I just replaced the ECM, Cap, Rotor, And all plugs. could this be maybe a fuel issue? Or is it a Spark issue? I'm stumped
If it is a drain down issue you may also have a cross feed problem (bad check valve in the FDM). If so you will fill one tank while driving on the other and fuel can start spilling out and become a fire hazard.
FDM = Fuel Delivery Module inside the fuel tank.
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#8
On a fuel injected engine when you go to WOT to start the engine that says you are trying to start a fuel flooded engine. WOT tells the computer to turn off the injectors while cranking.
Now about the only two ways fuel can get into an engine while setting is by a leaky injector or a bad FPR (ruptured diaphragm).
You can try pulling the vacuum hose off the FPR right after you turn off the engine or while it is running and see if any fuel comes out of the hose (or the nipple of the FPR), if it does the FPR is bad.
If no fuel out of the hose then more than likely you have a bad leaking fuel injector.
FPR = Fuel Pressure Regulator
WOT = Wide Open Throttle
Now about the only two ways fuel can get into an engine while setting is by a leaky injector or a bad FPR (ruptured diaphragm).
You can try pulling the vacuum hose off the FPR right after you turn off the engine or while it is running and see if any fuel comes out of the hose (or the nipple of the FPR), if it does the FPR is bad.
If no fuel out of the hose then more than likely you have a bad leaking fuel injector.
FPR = Fuel Pressure Regulator
WOT = Wide Open Throttle
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if you have a fuel pressure tester you could put it on when you get home and check the pressure in the morning. this way theres enough time for them to leak down enough for you to notice.
#15