No start
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4wd Low
Joined: Nov 2023
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No start
94 f150 300v6 will not start but will turn over.have replaced pcm tps distubor injectors plugs wires fuel pressure regulator both fuel pumps intake gasket coil relays map sensor air temp sensor has power at plugs and has correct fuel pressure but no start and no flash codes with the new pcm
Logistics Pro
Joined: Nov 2013
Posts: 3,928
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From: Mojave, Ca
Start with the basics.
Do you have spark?
Do you have fuel? A fuel pressure gauge a a noid light will tell you if your getting fuel. Both are available as a free rental at auto parts stores.
I assume you have compression.
Do you have spark?
Do you have fuel? A fuel pressure gauge a a noid light will tell you if your getting fuel. Both are available as a free rental at auto parts stores.
I assume you have compression.
Cross-Country
Joined: Dec 2023
Posts: 50
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From: Los Angeles
You mentioned there's power at the plugs, but it's important to ensure there's a strong, consistent spark. A weak spark could be the issue. Also, an often-overlooked issue is an obstructed exhaust. If the catalytic converter is clogged, it can prevent the engine from starting.
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4wd Low
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Logistics Pro
Joined: Nov 2013
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From: Mojave, Ca
How do you know you have fuel spraying into the intake manifold? Tell us more information or we can't help you.
Have you tried spraying ether in the throttle body to see if it'll fire over for a few rotations?
Have you tried spraying ether in the throttle body to see if it'll fire over for a few rotations?
Logistics Pro
Joined: Nov 2013
Posts: 3,928
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From: Mojave, Ca
Nothing you said here verifies you have fuel squirting into your intake manifold. Do you have fuel pressure? How much psi? Does the noid light blink when your cranking the engine?
But if it doesn't start with starting fluid, it doesn't matter.
Focus on your ignition system first.
Have you checked your timing with a timing light? Are you sure you reinstalled your distributor with the rotor pointing at the cyl #1 sparkplug wire when cylinder #1 is at tdc /on the compression stroke/?
But if it doesn't start with starting fluid, it doesn't matter.
Focus on your ignition system first.
Have you checked your timing with a timing light? Are you sure you reinstalled your distributor with the rotor pointing at the cyl #1 sparkplug wire when cylinder #1 is at tdc /on the compression stroke/?
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4wd Low
Joined: Nov 2023
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I have 45 to 50 psi for fuel and have 145 to 150 psi on compression . I have spark on all plugs checked with a light.checked injectors with a node light all light up and go off plus you can here each injector click plus plugs get wet.and it will try to start with starter fluid.the only thing I have not checked so far is the timming gear it self