Engines dies?????
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Junior User
Joined: Apr 2012
Posts: 78
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From: Peace River
Cheezit. Can you please walk me through the steps in short form for the injector coil tests you were earlier suggesting. I'm starting to second guess if the dealer actually did the tests of the injector harness or injectors. It stalled on me twice again tonight, once while idling and once while doing about 10 km/hr through a parking lot. Then I drove for 2 hours at 100 km/hr with no issues at all.
No codes either time it stalled.
One thing to think about, a few guys I've been talking to said to disconnect the aftermarket command start from the truck totally. They've heard and experienced some wierd stuff like mine with command starts. Or....what about a short or open under the dash somewhere along the steering column? What are your thoughts on that?
No codes either time it stalled.
One thing to think about, a few guys I've been talking to said to disconnect the aftermarket command start from the truck totally. They've heard and experienced some wierd stuff like mine with command starts. Or....what about a short or open under the dash somewhere along the steering column? What are your thoughts on that?
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Junior User
Joined: Apr 2012
Posts: 78
Likes: 0
From: Peace River
So this morning coming to work it hiccuped on me twice but never shut off. At lunch time it wouldn't run for more than about 30 seconds before stalling. Called a buddy of mine who has a Mac scanner and we hooked it up to the truck. With the KOEO we did an injector buzz test and passed. Checked for codes and no codes at all, not even logged codes in the "library".
Here's the kicker, the truck wouldn't start with the scanner hooked to it. It would crank but no fire. So then we tried hooking the scanner to the truck when it was running and as soon as we plugged it in the truck stalled. Tried again and again with the same outcome. Another guy at work has an 05 F350 and we tried it on his with no issues. Could hook up running or not running.
Checked mine again for codes and still nothing. I unplugged the command start module and tried again with no luck. I then called the dealer and had it towed up there. They'll get at it again tomorrow so we'll see what happens now.
Here's the kicker, the truck wouldn't start with the scanner hooked to it. It would crank but no fire. So then we tried hooking the scanner to the truck when it was running and as soon as we plugged it in the truck stalled. Tried again and again with the same outcome. Another guy at work has an 05 F350 and we tried it on his with no issues. Could hook up running or not running.
Checked mine again for codes and still nothing. I unplugged the command start module and tried again with no luck. I then called the dealer and had it towed up there. They'll get at it again tomorrow so we'll see what happens now.
Post Fiend
Joined: Oct 2009
Posts: 12,123
Likes: 35
From: N. Fort Worth, tx
imo not going to be a fuel cut off swith.
testing for shorted injector coils is a matter of luck more then any real diag. just start disconnecting one injector at a time and see if it will start. the kicker here is that the truck has to be in a nostart condition for it to work.
also check pins 6 and 13 (iirc anyway) for resistance. i belive it should be 60 ohms if the pcm and ic are on line.
testing for shorted injector coils is a matter of luck more then any real diag. just start disconnecting one injector at a time and see if it will start. the kicker here is that the truck has to be in a nostart condition for it to work.
also check pins 6 and 13 (iirc anyway) for resistance. i belive it should be 60 ohms if the pcm and ic are on line.
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Junior User
Joined: Apr 2012
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From: Peace River
That's the hardest part. Its only once(the last time) been a no start condition. Every other time its fired back up. Your thinking 6 and 13 off the PCM connector? What ic short for?
Post Fiend
Joined: Oct 2009
Posts: 12,123
Likes: 35
From: N. Fort Worth, tx
no dlc sorry.
dlc is were you hook the scan tool up at. ic is the gauge cluster.
the pcm and the ic both have 120 ohm terminating resisters. if either is off line you either have 0 ohms or 120 ohms, that would confirm a network fault.
dlc is were you hook the scan tool up at. ic is the gauge cluster.
the pcm and the ic both have 120 ohm terminating resisters. if either is off line you either have 0 ohms or 120 ohms, that would confirm a network fault.
Post Fiend
Joined: Oct 2009
Posts: 12,123
Likes: 35
From: N. Fort Worth, tx
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Post Fiend
Joined: Oct 2009
Posts: 12,123
Likes: 35
From: N. Fort Worth, tx
just saying are you?
used parts pricing is around .50 on the dollar for very good condition parts is what i have found
used parts pricing is around .50 on the dollar for very good condition parts is what i have found
Thread Starter
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Junior User
Joined: Apr 2012
Posts: 78
Likes: 0
From: Peace River
Tech changed the ICP sensor on Saturday morning and called me to pick it up. I asked him to use the truck for the weekend...groceries, shopping etc and see if it dies. He called me again this morning and said it never died on him and ran good all weekend. He burned a whole tank of fuel so maybe.
But could it have been that easy and why not found earlier??? I'm not convinced yet but we'll see. I'll keep you in the loop.
But could it have been that easy and why not found earlier??? I'm not convinced yet but we'll see. I'll keep you in the loop.