Re: v6 and 7 eighths! - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
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post #1 of 2 (permalink) Old 01-02-06, 01:01 PM
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Re: v6 and 7 eighths!

"Si K" <simonk@merlion-con******> wrote in message
> Hi All,
> Happy new year
> Getting most hacked off with the disco now!
> so far....
> New camshaft, followers and pushrods (cos it seemed down on power, turns
> out engine had not been particularly well looked after!)
> New Dizzy cap
> New leads
> New rotor arm (twice!)
> New coil
> New plugs (twice)
> New airflow meter
> And still it seems like its running on 6 and 7 eighths cylinders rather
> than a full 8. Plus, getting a slight niff of fuel when running, which
> suggests that it is still overfuelling (which is why the airflow meter was
> replaced)
> Any ideas?????
> Only other things that come to mind now are the temp sensors (not the one
> for the gauge - assuming this has two like the 3.9 rangie) and the ecu
> Si

Somebody said to me the first thing to do when a V8 3.9 EFi is not running
well is to change the temp sensors for the ECU.
When my V8 was running rough (over fuelling) I changed the ECU temp sensor
for about 8 quid and now it runs perfectly.
I measured the resistance of the old one at various engine temperatures
before taking it out and it just gave random readings. It was not even close
to the published specs.


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post #2 of 2 (permalink) Old 01-03-06, 06:01 AM
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Re: v6 and 7 eighths!

I was kind of hoping this one would be suggested as that was my next
course of action.


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