truck wont start!

[89k5350]

i just walked out to my truck to go some where, started it up let it warm up it started fine. its pooring rain out just so ya know. any way i put it in reverse and it died out. tried to start it back up and wont start back up. its got over half a tank of gas. i noticed that when im turning it over that evry couple few seconds there is some sort of skip in the starter. this is a 87 350 tbi. so i put a little gas in throttle body to see if it would fire then, still wont fire. i dont have tools to work with right now. any ideas?

 

[wage92]

it cranks but doesnt spark? can you hear the fuel pump prime when you click the key on?

 

[89k5350]

its brand new fuel pump when i get tools ill check for spark

 

[ktmoutfront]

Wet distributor cap? Mine did that once. But it would fire on a couple of cylinders still.

 

[Fordum]

The hitch in the starter could be a wet dizzy cap or wires causing a cross fire situation, or it could have jumped time.

 

[stroked_jimmy]

either the ignition module or the pick up coil in the distributor has went out is my guess. see if you have spark. if you have a noid light check for injection pulse. your distributor cap shouldnt be wet unless your not running a hood

 

[89k5350]

yea thats my thought that it jumped time. without pulling timing chain cover how do i check it?

 

[dyeager535]

I'd say bring it to #1 TDC and see if your timing mark aligns with 0* if you think it jumped time. It happens, but I wouldn't hold my breath if I were you.

 

[89k5350]

would a little smoke coming out of the exhaust after trying to start it mean anything?

 

[85 Jimmy]

It's getting fuel...

 

[Fordum]

Depends on the color of the smoke......
White is unburned gas hitting something hot. Black is super rich but trying to fire, blueish is oil.

Like Dorian said, bump it around to the TDC mark on the pulley, and see where the distributor is pointing.
Depending on which TDC you are at, it should be pointing at the no1 wire or directly away from it.

 

[89k5350]

alright thanks ill try that

 

[stroked_jimmy]

After you do that and find out that it hasnt jumped timing. take the air cleaner off and crank it over, are the injectors spraying fuel (I assume they are because of the smoke)? Have you checked for spark yet?

 

[clarkjw24]

check the oil. then check the oil pressure sensor at the back of the engine behind the dizzy. If its faulty or came unplugged the ecm will not send a fire signal to your injectors.

 

[89k5350]

ok so I found a bad rotor under the distributor cap and replaced it with a new ac delco. I was turning it over after new rotor and got a really really freakin loud back fire. and it still wont start. before the new rotor it had no spark. also when im turning it over like every couple seconds or less the starter drops for a split sec then keeps turning over fine and keeps repeating this skip or deep drop repeadedly.

 

[stroked_jimmy]

Did you remove, change, or loosen the distributor at all? Did you pit the rotor on 180 degrees off

 

[89k5350]

truck is fixed!!!! ended up being the msd distributor cap, the needle in the middle of the cap that holds the rotor down broke. and the cap was less than a year old. so ended up replacing cap and rotor. thanks for the help.