Engine Cranks bu doesn't start - Ford F150 Forum

Talmbla · 10-19-2009, 01:02 PM

Starter is working, rolls the engine over however it doesn't catch. Replaced fuel filter, both pumps work, I can hear them priming. Checked the inertia switch and its in the red, the right position. Backing out of my driveway and went over a bump and the engine just died. Main bearings may be shot on the engine...have low oil pressure when at idle after the engine has warmed up. Any ideas? Im going to take the distributor off later and make sure it's not the timing belt.

Fast Hampster · 10-19-2009, 01:16 PM

at first check for spark with spare ignition plug, then ignition timing. Low oil pressure is not a good sign, but it should not affect engine starting as far as it cranks.

Talmbla · 10-19-2009, 03:43 PM

Do you think the bump could have shifted the distributor? Im going to throw some starter fluid into it tomorrow to see what happens. Hopefully nothing with the fuel, don't feel like replacing those parts. It has new cap, wires and plugs as of 1500KM ago.

Fast Hampster · 10-19-2009, 04:09 PM

Honestly - you're right, i don't think it might shift the distributor. It's just my regular algorithm of searching "why not starting" issues. First check fuel, then spark and timing. I know it sounds basic, but it always works for me. I thought that since your pumps are priming and there's no noticeable fuel spot under the truck the engine is getting fuel (you'd mention it, right?). And some wire could get loosened after a bump, which may result in loss of spark.

Talmbla · 10-19-2009, 06:03 PM

Right on man, definitely see were you're coming from on this, sorry if that sounded crass. Haven't even looked for the wires yet, I just kinda swore a bunch of times and got my buddies to push it into the driveway, kicked the tire and left it until I threw the new fuel filter in...which of course didn't do anything. I haven't had the time to actually start eliminating stuff...Which is exactly what I need to do right about now.

I was honestly hoping that someone would have that magical answer that would solve it without me having to buy anything else...but I know how bloody likely that is. Cheers for the help!

Good old Bill · 10-19-2009, 06:21 PM

Am confused, hear the pumps but inertia switch is in the red. What does that mean? To me, the bump tripped the switch and is showing red. But with the switch tripped, you won't hear the pumps running for there 2-3 second on time.

Talmbla · 10-19-2009, 06:40 PM

I was just saying I checked that. According to the Haynes it is supposed to be down and when tripped it is in the up position, and you can no longer see the red button.

*edit* again, sorry if that sounded rude. Totally not intended, any input is definitely appreciated!

Fast Hampster · 10-19-2009, 07:17 PM

btw - just thought about "Russian way" to check for fuel presence. There's a fuel pressure test valve on fuel ramp, after pump has primed push it with a small screwdriver (don't forget to put on protective glasses). It's not safe cause fuel is under pressure and it always wants to spray directly into eyes, but it will show if fuel is reaching engine.

Talmbla · 10-19-2009, 08:05 PM

Quote:

Originally Posted by Fast Hampster

btw - just thought about "Russian way" to check for fuel presence. There's a fuel pressure test valve on fuel ramp, after pump has primed push it with a small screwdriver (don't forget to put on protective glasses). It's not safe cause fuel is under pressure and it always wants to spray directly into eyes, but it will show if fuel is reaching engine.

I'll be trying this tomorrow...I believe there are quite a few other words to describe what you consider "russian" Not all of them being in line with the terms of service with this site

And btw, heres a shot of big white as she is known right now...to come when it warms up is a tremclad roller job (I swear it will look good!)

Good old Bill · 10-19-2009, 10:07 PM

Rude? Don't even know what the word means. Fast Hampster (Hamm) and I went months appologizing to each other for the lost meaning in typed words. As Hamm said, check for fuel at the schraeder valve, if there, check for spark, if there listen for the injectors to click. If clicking, babe, you might just have some serious problems, Get back to us. Hey Hamm, received your PM, just to busy being retired to respond, talk more later.