won't start after sitting
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Elder User
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From: Pensacola, FL
won't start after sitting
95 f150 w/ 300-6. after it sits for several hours or overnight it won't crank up unless i put starting fluid into the intake. the fuel pump is new and it comes on when i turn the key on, but it won't fire up on it's own. can someone give me a list of the possibilities?? once it's been running it will crank back up on it's own also.
Fleet Owner
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From: Easton,Ks
Originally Posted by 95Ford4x4
95 f150 w/ 300-6. after it sits for several hours or overnight it won't crank up unless i put starting fluid into the intake. the fuel pump is new and it comes on when i turn the key on, but it won't fire up on it's own. can someone give me a list of the possibilities?? once it's been running it will crank back up on it's own also.
Fuel pressure is checked at the fuel manifold with the key on, pin#6 (the LB/O wire 926) of the DLC grounded and the engine not running.
You should have about 55 psi pressure.
Last edited by subford; Apr 11, 2007 at 03:43 PM.
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Elder User
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From: Pensacola, FL
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Fleet Owner
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From: Easton,Ks
Originally Posted by 95Ford4x4
ok, i'm not used to all the electronic controls and acronyms, so what is an ECT sensor, where is it located??
ECT - Engine Coolant Temperature sensor
Originally Posted by 95Ford4x4
is there a check plug on the fuel rail for me to put a gauge to??
In the diagram below it is called the "Fuel Presure Relife Valve".
http://i54.photobucket.com/albums/g91/subford/Fuel/FuelManifold4.gif
Last edited by subford; Apr 11, 2007 at 04:36 PM.
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Post Fiend
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From: Bonita Springs FL
The ECT on the 300 is right in front. It's a sensor that screws into one of the water lines that run to the heater core.
You will need a fuel pressure gauge - about $25 or so at a parts store - to check the fuel pressure.
You will need a fuel pressure gauge - about $25 or so at a parts store - to check the fuel pressure.
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Elder User
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From: Pensacola, FL
ok, i know where the temp sensor is, but when the truck is running the guage shows it around between the N and O. which people have said on here is normal, how would it effect the vehicle when cold?? thanks for the help guys, tomorrow i go pick it up from the paint shop and will be able to dig into this problem.
Fleet Owner
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From: Easton,Ks
Originally Posted by 95Ford4x4
ok, i know where the temp sensor is, but when the truck is running the guage shows it around between the N and O. which people have said on here is normal, how would it effect the vehicle when cold?? thanks for the help guys, tomorrow i go pick it up from the paint shop and will be able to dig into this problem.
The Engine Coolant Temperature sensor information only goes to the PCM Computer and is the most important sensor for the fuel ratio.
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From: Pensacola, FL
i gotcha, so that could be why it will crank up ok after it's been running, but not when cold. that makes sense. i might pick one up tomorrow on my way to paint shop and put that in before i ever try to crank the truck up and see what happens.
Fleet Owner
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From: Easton,Ks
Originally Posted by 95Ford4x4
i gotcha, so that could be why it will crank up ok after it's been running, but not when cold. that makes sense. i might pick one up tomorrow on my way to paint shop and put that in before i ever try to crank the truck up and see what happens.