94 5.0 crank no start!
#1
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I'm having trouble diagnosing my 94 f150. I think I need to replace my eec but would like to get some opinions from people who know this truck better before I pull the trigger. I have replaced the ICM, Coil, cap/rotor. I've been checking for spark with my timing light. At first I had nothing, looked like a bad cap and rotor, replaced all the bits to still have no spark. Then I pulled the little bridge out next to the icv for the eec timing control, after that I had spark. Tested the fuel system and relays by grounding the fuel pump wire from the test port. Plenty of fuel pressure. Tried starting fluid and the truck started for like 2 seconds then spit fire at me so pretty sure there is spark but the injectors aren't triggering. The fuel pump doesn't prime when I turn the key but the relay is good. Any thoughts? Pretty sure I need a new eec module.
#2
Senior Member
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Before you replace the processor, pull its cover off and look at the three electrolytic capacitors on the pc board. If any of the three are buldged out or leaking, replace all three. That could resolve your issue.
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raski (02-11-2024)