speedfreek

Hello, I recently bought a 1994 F150 5.0L with a bad fuel pump. After replacing the pump and tank, I found a leak, it still will not start. I checked the regular things: spark, spark plugs, fuel to the fuel rail, spark plug firing order. It will sputter but thats about it, even on starter fluid.

I was planning on replacing the distributor, took it off and it looked cruddy, and the fuel filter just to make sure things are good. After that I am at a loss for what to try next. The fuel injectors possibly, how do I check them?

Anyways, I bought it for a farm truck/beater and I am not crazy about sticking much more money into it than I have to but I do want to get it running and get my use out of it.

Thanks for any help or suggestions.

ymeski56

Get a Ford OBD 1 Scan Code Reader ($39. Kreagen Auto Parts,in store or online) & do the Key On Engine Off scan test (KOEO). Add cap & roter you can still get out for less than $60.

Good old Bill

Verify ignition timing, but remember even if it is in time by the distributor, that could have been changed and the valve timing could be off. As my responce is 9 days late let us know if you are still having problems.

DANGER1049

yank the hose off that goes in the intake , spray some starting fluid in there. If it starts to bust off you have a fuel problem, if not it is spark. Check your ignition module just went through that.

speedfreek

Ok, I got a new cap and rotor installed this morning and tried it off starting fluid, nothing. So I shoot a little ether into the intake and I get a small backfire, then I try it wide open because I had the most activity out of the motor that way, BAMM! Huge backfire. Dont know what this means but it happened.

So now I plan on checking compression and replacing the fuel filter, it probably needs one bad anyway. Is there an easy way to check the ignition module without getting a code reader? Is there much of a computer to go bad?

Also I do plan on checking the timing at the distributor because a friend said it could be the timing chain.

Thanks for the replies

Fast Hampster

if you have a backfire looks like you have a spark. Check the timing.

DANGER1049

PULL A SPARKPLUG OUT AND STICK IT IN THE WIRE AND HOLD IT AGAINST SOME METAL AND SEE IF IT SPARKS, OR GET A $6 dollar spark tester from advanced auto.... May have fouled plugs.

Just call me Sean

iTrader: (1)

Auto parts store will check the ignition module. You don't need a code reader to check for codes on your truck, just a piece of wire.

bcmontgomery

Start basic, do you hear the pump prime with the key in run. If not start there, old quick connects can get dammaged replacing parts. Don't start working on the motor untill you know it has spark and fuel. Start with those problems first.

speedfreek

I know I have fuel because when I turn the key the pump whirrs and if I press the bleeder valve with the fuel pump running I get a face full of gasoline, it sprays out like crazy.

I know I have spark because when I take a plug out and test it I see spark when someone is cranking the engine over.

I do not know if the spark is being delivered at the correct time or if the fuel injectors are good, next thing is to replace all the spark plugs and check the timing by getting a piston to TDC and taking off the distributor cap. I haven't had much time to work on it lately and will report back with new findings next time I take a crack at it.

Again, thank you for the replies.