Dads 03, again.

6speedsd

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CMP CKP in sync... What causes it to flash from yes to no? Or maybe I should ask what is normal?

I know on my 05 it does the same thing.

And camshaft position sensor reading low...is that normal?
 

Mdub707

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I've honestly never paid enough attention to it on a scanner to watch to see if it does this on my truck. I might have to try that out. You said you replaced the CMP recently right? Was it a Ford part that was used?
 

6speedsd

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No. I think he bought Carquest. Little local parts store he likes buying parts from is a Carquest dealer. He buys everything from that guy because they are good friends. I still can't get him to understand how much these engines rely on Motorcraft parts. Believe it or not up until a couple years ago, he had been using that dumb Napa oil filter and cap. I didn't even know it until I went to change his oil for him. Surprised he hasn't done any major damage to it.

I think the best thing that ever happened to his truck was me starting to work for him a couple years ago! And I'm not saying that out of arrogance. It finally gets routine maintenance done to it. I actually washed the thing for him yesterday. First time it's been washed in probably 5 years. Had a half inch of dust inside, and I vacuumed close to 2 gallons of dirt, grass, and just general crap out of the floorboards!
 

Mdub707

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Surprised it hasn't done any major damage... but some injectors are certainly in question...?
 

6speedsd

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Update...

He got the battery replaced yesterday. Went to crank it... Turns over really fast like it should, but said it is still slow to fire over. I will be out there tomorrow. I need to check FICM voltages now that the battery issue is squared away.

Someone mentioned GPCM earlier. Is there a way to test it?
 

Lassie

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With the recent electrical issues, definitely check FICM (with a meter). Batts, alternators, and FICMs can die together.

You are going to have to run a power balance to find injectors with stiction. The buzz test isn't of much use.
 

Mdub707

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You can test the GPCM and the glow plugs all individually. Disconnect the 4 pin connector at the valve cover. Measure each glow plug resistance to battery ground, the glow plugs should fall between .1 and 2 ohms. Then measure the engine harness resistance to the GPCM, those should fall between 0 and 1 ohms.
 

6speedsd

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With the recent electrical issues, definitely check FICM (with a meter). Batts, alternators, and FICMs can die together.

You are going to have to run a power balance to find injectors with stiction. The buzz test isn't of much use.

I've ran power balance on it once already. Graph stayed pretty level.

If buzz test is useless for detecting sticking spools, then what is it actually good for?
 
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6speedsd

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You can test the GPCM and the glow plugs all individually. Disconnect the 4 pin connector at the valve cover. Measure each glow plug resistance to battery ground, the glow plugs should fall between .1 and 2 ohms. Then measure the engine harness resistance to the GPCM, those should fall between 0 and 1 ohms.


I will give that a try tomorrow if I can. Thanks for the info.
 

6speedsd

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Just sitting here thinking, consider this...

Truck doesn't start any better when plugged in. Starts the same either way. If it was a glow plug related issue, wouldn't it start better plugged in?

I know this is all pointless until I check voltages, but just trying to get some other things in mind to check in case ficm reads good.
 

Lassie

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The only thing the buzz is doing is testing the electrical connection to the solenoid.....thats it. If you have a circuit fault (open), it will report it.

Plugging in should improve both stiction and glow plug problems if you have them.
 

Atsah

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Just sitting here thinking, consider this...

Truck doesn't start any better when plugged in. Starts the same either way. If it was a glow plug related issue, wouldn't it start better plugged in?

I know this is all pointless until I check voltages, but just trying to get some other things in mind to check in case ficm reads good.

You are correct.. IMO, you don't have the correct voltage either comming from the battery's or the FICM..
 

6speedsd

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Ok then how about this. On my 05, I have stiction. I know that to be true. But, on buzz test 1,3,5, and 8 either click really weak or just don't click. Its random and different every time i do the test, but it is always the same 4. That a sign of a bad solenoid on the injector itself?

So if plugging dads in doesn't change how it starts, then more than likely he doesn't have a glow plug related issue?
 

6speedsd

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You are correct.. IMO, you don't have the correct voltage either comming from the battery's or the FICM..

Yea that's my thinking. Like I said we have the battery issue solved. I'm checking ficm voltages tomorrow to see if there is an issue there. I know that isn't the original ficm because it was replaced maybe 5-6 years ago (dude charged him $700 for a new one!), but with that bad battery, I'm scared he ruined this one.
 

Atsah

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Yea that's my thinking. Like I said we have the battery issue solved. I'm checking ficm voltages tomorrow to see if there is an issue there. I know that isn't the original ficm because it was replaced maybe 5-6 years ago (dude charged him $700 for a new one!), but with that bad battery, I'm scared he ruined this one.

It is possible.. Sometimes testing the FICM voltage and getting the 48 that your looking for doesn't mean the FICM is good but with the symptoms your having my guess is, if in fact your FICM is the culprit, it will read low key on.. The harness is in good shape correct?
 

6speedsd

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As far as I know it is. I haven't tore around it and checked it out too much.

He has an oil leak somewhere up top that I need to find. Oil has ran down the front and back passenger side of the engine. Haven't figured out where it's coming from yet. I'll check the harness when I have it apart to find that leak.
 

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