DIY FICM, now no-start, no turnover, HELP!

[Nu2Ford]

Did the DIY FICM repair, just re-flowed the 16 joints, that's it, put it back in the truck, hooked everything back up.

The dash lights come on, flickering dash lights, but all I get is a clicking sound no turnover. Everything was working fine prior to removing the FICM. This was just a preventative measure to help with a low FICM voltage, slow actually as it would eventually make it to 48 volts taking about 10 seconds to get there.

So where should I look first? Dash lights come on, batteries show 12.45 volts, headlights came on as it was evening.

Any ideas?

One thing I did take note of was the dash lights would flicker and the speedometer would kinda flicker as well. Is it possible I have a short?

I do have an alarm which kills the ignition - does that mean anything?

Thanks



The re-soldering of the joints went flawlessly.

[alwil]

Did you check to make sure all of the plugs are plugge in properly?

[Nu2Ford]

Originally Posted by alwil

Did you check to make sure all of the plugs are plugge in properly?

I thought they were plugged in, but I'll go back and check them thoroughly. Would that cause this kind of a problem?

Is there anything else i should be looking at?

[Evil Eye]

They should make a distinct clicking sound as they are seated. There are three sets of cables, two for the injectors and one set for connecting to the PCM. If they aren't fully seated, it can cause this issue. Since they are underneath, it takes a fair amount of pressure to get them seated.

[mmandley]

Idk about removing and installing but when my FICM was reflashed we had to remove a fuse or relay in the engine by the battery on the drivers side. I was told if I didn't remove this when working on the FICM it will blow, short or cause problems. Not positive but I think it's what makes the cycling sound you hear.

[alwil]

Originally Posted by Nu2Ford

I thought they were plugged in, but I'll go back and check them thoroughly. Would that cause this kind of a problem?

Is there anything else i should be looking at?

I think it is quite common yes......and hard to diagnose because you can't really see it.



"You know nothing Jon Snow"

[Nu2Ford]

I will start with the plugs and make sure they're seated. I will also look at for fuses related to starting.

Just to be clear - the "clicking" sound is almost like the sound a starter makes when a battery doesn't have enough juice. That's what it reminds me of anyway.

And the flickering of the dash lights and gauges - that's just weird.

I thought it was shorting somewhere, but the FICM repair is all I did and it went well. My truck is completely stock and I use a Scangauge.

Also, one thing I should mention - the FVP was showing 8.5-9.0. I've never seen it that low - ever. Generally FVP showed 12.5-14. Does that indicate anything?

[alwil]

Originally Posted by Nu2Ford

I will start with the plugs and make sure they're seated. I will also look at for fuses related to starting.

Just to be clear - the "clicking" sound is almost like the sound a starter makes when a battery doesn't have enough juice. That's what it reminds me of anyway.

And the flickering of the dash lights and gauges - that's just weird.

I thought it was shorting somewhere, but the FICM repair is all I did and it went well. My truck is completely stock and I use a Scangauge.

Also, one thing I should mention - the FVP was showing 8.5-9.0. I've never seen it that low - ever. Generally FVP showed 12.5-14. Does that indicate anything?

Could just be a loose connector giving a goofy reading



"You know nothing Jon Snow"

[Evil Eye]

You need to charge your batteries or replace them. That's dangerously low and can damage your FICM...

[Nu2Ford]

Originally Posted by Evil Eye

You need to charge your batteries or replace them. That's dangerously low and can damage your FICM...

What should my batteries be reading?