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78 F150 w/rebuilt 400 eng: Won't Start

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ST

Serge TrulletOP

  • Member since Apr 2003
  • 4 posts
  • Ripley, MS, USA
Apr 25, 2003 at 2:43 PM
Hi, guys

I'm new on this forum. I just bought a nice 78 F150 with a rebuilt 400 eng in it. It was running fine until the other day I decided to clean the engine with gunk and a hose... I started it right afterwards and let it run for a few minutes to dry everything off.

I went back to it a couple of days later and it w/not start. The engine turns fine but it wont even try to light off. I had put it some carb cleaner in the tank, so I thought I had gummed up the fuel filter. I replaced both the one by the tank and the one at the carb inlet. I took the pump off and flushed it with fuel, and it worked fine when I applied 12V to it.

I took off all plugs, wires, distributor cap, and all of it looked ok. I didnt get a good ck on the ignition coil so I replaced it. Still no spark.

I read in this and other forums about the Electronic Ignition Module, aka Duraspark box. Mine has neither 2 nor 3 wires... It has SIX wires!!!: red, white, green, green, orange and purple... there are some numbers and letters on the Duraspark box as follows: AA E8FF 12A199.
I understand one can jump two of the wires to determine if the box is bad. Which ones, fellas?

Also, is there any other thing I can ck? I thought maybe one of the key switch connections may be pulled...

I really like the truck, but really wished it were RUNNING!!!!

Thanks in advance.
JR

Justin Reynolds

Apr 25, 2003 at 7:13 PM
I don't know about the coil but on my 77 with a 4bbl 351, every once in a while after it sits for a couple of days, I will try to start it and all the engine does is turn over. It turned out to be rubber vacum fitting on the back of the carb that pops off. It is dryrotted and every once in a while it just blows off and the engine won't start come hell or high water until I replace it. You would never think a rubber plug would have that much impact, hope that helps you.
ST

Serge TrulletOP

  • Member since Apr 2003
  • 4 posts
  • Ripley, MS, USA
May 12, 2003 at 2:53 PM
Fixed! It was the ignition ctrl module. And it did have two plugs (w/six wires), a blue grommet, and it cost just $14.99.

I also fixed the Quicksilver shifter by adjusting the neutral safety and backup light switches, and it all seems to be working ok now.

Next will be leak cking the a/c, and converting it to R134.

So far so good.

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