Help Cranking but No Start
#1
Registered User
Thread Starter
Help Cranking but No Start
My 05 Roadster doesn't get driven nearly enough however last time I was home I had a problem.
I had driven the car several times that day and other than the blinking airbag light nothing out of the ordinary.
I went out to head to the airport and it would crank just fine but never fired, not even an attempt to fire. I was scheduled to fly in a couple hours so I disconnected the battery and left it. Best I can describe is like back in High School when someone would steal the rotor out of the distributor. Excellent crank but nothing else.
I have the Torque App on my phone for my 6.0 Ford (that's the definition of a problem child) so I can read everything but need advice as to where to start looking.
Thanks in advance,
Scott
I had driven the car several times that day and other than the blinking airbag light nothing out of the ordinary.
I went out to head to the airport and it would crank just fine but never fired, not even an attempt to fire. I was scheduled to fly in a couple hours so I disconnected the battery and left it. Best I can describe is like back in High School when someone would steal the rotor out of the distributor. Excellent crank but nothing else.
I have the Torque App on my phone for my 6.0 Ford (that's the definition of a problem child) so I can read everything but need advice as to where to start looking.
Thanks in advance,
Scott
#2
Registered User
Thread Starter
And just to add to the mystery, I just went out with my OBD2 adapter and Torque app. Initially it did the crank but no start again so I connected to read any codes which there were none. I then tried cranking it again to see of it registered RPM on the OBD2 and it fired right up.
I also discovered that it's been being driven while I was away, my daughter doesn't do a good job of covering her tracks but the seat was slid all the way up, stereo cranked on something I would never listen to and A/C wide open and a previously full tank of gas down to almost empty. Of course the reconnected battery was the first clue. Said she had her husband hook it up so she could get her CD's out of it.
So aside from figuring out the problem the keys will now be travelling with me.
I also discovered that it's been being driven while I was away, my daughter doesn't do a good job of covering her tracks but the seat was slid all the way up, stereo cranked on something I would never listen to and A/C wide open and a previously full tank of gas down to almost empty. Of course the reconnected battery was the first clue. Said she had her husband hook it up so she could get her CD's out of it.
So aside from figuring out the problem the keys will now be travelling with me.
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Catalinaflyer (07-26-2015)
#4
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It sounds like it could be a crankshaft position sensor failing. I'm not sure of your diagnostic tool, but it should retain a code in memory (P0340) if that's the cause.
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Catalinaflyer (07-26-2015)
#5
Registered User
Thread Starter
That was my first thought as well but no stored or active codes. It seems that turning the key to the run position then waiting a few seconds it will start but going straight from off to start is where the problem is.
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Catalinaflyer (07-26-2015)
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Catalinaflyer (07-26-2015)
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#8
Registered User
Thread Starter
Oh wow, yeah I never thought of the key transponder. Unfortunately for me I only have the one key so I guess I'm off to the dealer next time I home for a second key to see if that fixes it.
#11
Registered User
Thread Starter
Funny thing, same day I posted that I bought a new (to me) 09 F250 Super Duty that she and her husband have been drooling over for weeks. Had they asked before using the Z or admitted to using it when I asked I probably would have left them the keys to the truck but no more.
Is this typically just the chip in the key itself or something more on the car? And second question, can this just be disabled?
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