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what does a pcm flash do?

Old Nov 15, 2007 | 09:28 AM
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Default what does a pcm flash do?

what does this pcm flash do for your truck? thanks for any info.
 
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Old Nov 15, 2007 | 10:17 AM
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Default RE: what does a pcm flash do?

depends? dealer flash ? hypertech ?..
all it does is update your software in your PCM... today im gonna flash mine for my tires so i can get the speedo correct and the shift points..
 
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Old Nov 15, 2007 | 07:06 PM
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Default RE: what does a pcm flash do?

The latest flash i just had done to mine : improved shift points delayed lock up til 53mph and fixed a serge between 3-4 you can ask your dealer for the update for (beaming) its 69.00 - 89.00 Hope this helps
 
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Old Nov 15, 2007 | 08:26 PM
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Default RE: what does a pcm flash do?

A flash changes the PROM (Programmable Read-Only Memory) in the PCM.
 
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Old Nov 15, 2007 | 09:21 PM
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Default RE: what does a pcm flash do?

ORIGINAL: tazme695

The latest flash i just had done to mine : improved shift points delayed lock up til 53mph and fixed a serge between 3-4 you can ask your dealer for the update for (beaming) its 69.00 - 89.00 Hope this helps
Do you havethe codingnumber for this particular flash? Just curious as to how "new" this flash is.
 
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Old Nov 19, 2007 | 09:34 AM
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Default RE: what does a pcm flash do?

i was wondering exactly what it dod because my truck shifts funny into 2nd and i also have bigger tires on it and my speedo is off about 1 mileper hour for every 10 mph i go so example it says im doing 50 but im really doing 55. so i need that fixed. will it help that?
thnaks
 
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Old Nov 19, 2007 | 04:13 PM
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Default RE: what does a pcm flash do?

bump
 
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Old Nov 19, 2007 | 08:47 PM
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Default RE: what does a pcm flash do?

ORIGINAL: ONECRAZYJEEP

i was wondering exactly what it dod because my truck shifts funny into 2nd and i also have bigger tires on it and my speedo is off about 1 mileper hour for every 10 mph i go so example it says im doing 50 but im really doing 55. so i need that fixed. will it help that?
thnaks
Don't need a PCM flash for that. Go to your local repair shops until you find a mechanic with either a Snap-on scanner or DRB III and offer him $20 to calibrate your pinion factor. He should be able to do it in about 5 minutes.
 
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