[AT] OT Ford

Thomas O. Mehrkam tomehrkam at houston.rr.com
Wed Mar 24 04:05:23 PST 2004


Dump the codes from the computer. That may give you a clue.

I always check for the obvoius mechanical problems and then go
straight to the computer. Many times it will give you a clue.

Phil Auten wrote:
> Jerry,
> I have a similar problem with my '91. It's fuel injected and 
> computerized. It will run rough, with an intermittent
> miss while running down the road at pretty much any speed under 65 mph, 
> but only while "cruising", that is
> not accelerating or decelerating. A little more throttle and it smooths 
> out. Same thing for a little less throttle.
> I suspect a vacuum leak somewhere, I just haven't found it yet.
> 
> Phil
> 
> At 06:38 PM 03/23/2004, you wrote:
> 
>> Hi I have just bought back my old 78 Ford with a 300-6 eng. runs and 
>> starts good BUT at idle it runs rough also when you try to hold speed, 
>> say 45 mph, it has new plugs, wires, cap and roto, could it be carb 
>> adjustment and/or burnt valve? the carb has been rebuilt..all work 
>> done within the last 2-3 weeks, but will not come out of this 
>> sputter...it will smooth out if you punch it hard it smooth from idle 
>> to running speed..
>> HELP
>> Jerry NW Ohio
>>
>> ps  still waiting for the MH 44 spl to show up, soon I hope
> 
> 
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