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Troubleshooting a BA 6-Won't start intermittently. 

 

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 Post subject: Troubleshooting a BA 6-Won't start intermittently.
Posted: Wed Mar 03, 2010 2:13 pm 
Getting Side Ways
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Just wanted to find out if this is a common problem with BA's. Its a completely stock wagon. I think it just generally does this when cold, after it starts, its fine for the day. It will just crank over, but not start. Might take a minute, might take hours. Has had a new battery.

Am I wrong in thinking it may be the starter motor stuffing up? How can we test for fuel pressure and spark in a BA? Is there a common electronic/security problem? I know with the E-Series the smartlock can disable the car when it plays up.

Thanks guys.
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 Post subject: Re: Troubleshooting a BA 6-Won't start intermittently.
Posted: Wed Mar 03, 2010 4:13 pm 
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this may sound dumb, but humour me and pour hot water over the pcm under the bonnet next time it wont start, you will most likely find it will start and run. Have seen a few BAs do this now.
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 Post subject: Re: Troubleshooting a BA 6-Won't start intermittently.
Posted: Thu Mar 04, 2010 12:12 am 
Getting Side Ways
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is that the one on the passenger side wheel arch? What causes it?
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 Post subject: Re: Troubleshooting a BA 6-Won't start intermittently.
Posted: Thu Mar 04, 2010 10:39 pm 
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its on gas aint it????
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 Post subject: Re: Troubleshooting a BA 6-Won't start intermittently.
Posted: Fri Mar 05, 2010 2:13 am 
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yeah thats the one. LH wheelarch above the strut mounting. Its caused by a fault inside the PCM.
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 Post subject: Re: Troubleshooting a BA 6-Won't start intermittently.
Posted: Fri Mar 05, 2010 8:58 am 
Getting Side Ways
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eboost wrote:
its on gas aint it????


Nope.

So far we have the possibility of a fault in the computer, and starter motors seem to be a common problem. I'll let you know how we go with it. Had me quite puzzled.
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 Post subject: Re: Troubleshooting a BA 6-Won't start intermittently.
Posted: Fri Mar 05, 2010 5:41 pm 
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if its a starter motor fault it wont even turn it over
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 Post subject: Re: Troubleshooting a BA 6-Won't start intermittently.
Posted: Sat Mar 06, 2010 2:45 am 
Getting Side Ways
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ok. Could be the timing cam Phasers. does it sound like it losses compression while cranking?
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 Post subject: Re: Troubleshooting a BA 6-Won't start intermittently.
Posted: Sat Mar 06, 2010 11:36 pm 
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xpression wrote:
yeah thats the one. LH wheelarch above the strut mounting. Its caused by a fault inside the PCM.


You got it, started straight away after hot water over it. What does PCM stand for? I thought it was the ECU. Unplug and replace, or programming needed? What fits and what doesn't?

Thanks very much. :D
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 Post subject: Re: Troubleshooting a BA 6-Won't start intermittently.
Posted: Sun Mar 07, 2010 4:10 am 
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PCM, ECU, Same thing - although PCM is the more correct term
ECU - Electronic Control Module,
PCM - Power Train Control Module.

Technically there are 5+ ECU's in a BA (3 of which are under the dash) so they gave them individual names. Unfortunately not as simple as a reflash :(. It will need to be repaired or replaced as the circuit board inside is damaged.
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 Post subject: Re: Troubleshooting a BA 6-Won't start intermittently.
Posted: Sun Mar 07, 2010 1:56 pm 
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SLO247 wrote:
xpression wrote:
yeah thats the one. LH wheelarch above the strut mounting. Its caused by a fault inside the PCM.


You got it, started straight away after hot water over it. What does PCM stand for? I thought it was the ECU. Unplug and replace, or programming needed? What fits and what doesn't?

Thanks very much. :D
Maybe try to get a 2nd hand BA PCM from eBay or somewhere. Get one from a similar spec ie BA 4spd auto 6cyl. Much cheaper than a new one.
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 Post subject: Re: Troubleshooting a BA 6-Won't start intermittently.
Posted: Sun Mar 07, 2010 11:20 pm 
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Thats what I meant, to get another one. I meant does it need to be programmed to the car. Being just the computer for the drivetrain, I know now that it should just plug in and work if it is the correct one. I thought maybe the PCM was security related.

I just need to know what is compatible. I'll get in touch with FTG.

Thanks very much.
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 Post subject: Re: Troubleshooting a BA 6-Won't start intermittently.
Posted: Tue Mar 09, 2010 12:02 am 
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ya will need to be re programmed. Just try get a unit with the same tear tag number. It's the larger digits on the serial number sticker. This is what identifies the compatibility with the car
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 Post subject: Re: Troubleshooting a BA 6-Won't start intermittently.
Posted: Tue Mar 09, 2010 12:50 am 
Getting Side Ways
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Bugger. One of the ford wreckers should be able to sort it. Thanks very much for the help.
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 Post subject: Re: Troubleshooting a BA 6-Won't start intermittently.
Posted: Tue Mar 09, 2010 3:46 am 
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This seems like the same thing I have experienced ford-4l-and-6-cylinder-f1/ba-sr-starting-issues-t88379.html

If it does it again I'll try the hot water trick.
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