Posted by Hobo,NC on December 07, 2013 at 08:05:57 from (151.213.96.179):
In Reply to: OT 2000 Ranger posted by Paterson1962 on December 06, 2013 at 13:59:45:
What grips my arse is is the lack of fuel pressure/VOLUME test.
I understand you may not be tooled up for it BUT the fuel pressure would rule out a lot of the useless/guess/grunt work...
Its a MUST KNOW SPEC... Yours is a EZ one to tap into so in my mind theirs no excuses not to go their
:wink:
Its also possible the converter is plunged. Yours had a flange and can be disconnected for a test...
What I did like to see in most of the reply's was folks lean towards air management issues. (Thums UP) Today's electronic engine control system's are all about air and fuel management. I can see a air leak affecting idle (we call that UN-metered air) and a engine running at cruise. You statement of NO power at all concerns me... One test is to un-plug the MAF sensor that puts the system in a pre-set program. It still may not idle are even run good but it should be drivable with not much noticeable lose of power....
try unplugging the mass air flow sensor and seeing if the power increased. if it doesn't, i don't think a new maf sensor will solve the problem.
I did a quick search for issues with low power... Folks that deal with these issues daily have one up on DIY wrenches we can weed out the B.S. and build a battle play most of the time that's effective and bypass hit and miss fiddling around...
This stuck out low no power on a V6, it may not apply but sure nuff will have you chasing your tail...
my suspicion was correct on ignition timing as was it with other replies. we removed harmonic balancer to find that ford has, in all their wisdom, decided to make the center section of the balancer out of aluminum which wore out the key way and let the balancer shift on the crankshaft snout thus changing the crankshaft position sensors version of where the crankshaft actually was in it's rotation. replacement balancer was made of cast iron
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