97 2wd rough idle
#3
I think this is a test, we're suppose to automatically know or maybe it's not suppose to matter ? Either way, if I wanted some good free advice/help, I would sure as hell detail my info for the best possible outcome.
Like what I have done so far to try and figure this out.
Like what I have done so far to try and figure this out.
#4
#5
#6
#7
Geezz, I was way off guessing lol. Not doing that anymore.
5fours don't use coil packs, just coils. The 4two and older 4six's use coil packs.
What coils did you use?
What plugs did you go with?
And you haven't answered glc, - did you scan it, or have it scanned for DTC codes?
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#8
i got the cop's from global and used motorcraft plugs from a local auto parts store. i havent had it scanned because the check engine light hasnt came on at all. so i just changed all of that thinking it was just regular maintenance. since i changed all of that it seems to be sucking down fuel maybe just coinscidence not sure?
#9
i got the cop's from global and used motorcraft plugs from a local auto parts store. i havent had it scanned because the check engine light hasnt came on at all. so i just changed all of that thinking it was just regular maintenance. since i changed all of that it seems to be sucking down fuel maybe just coinscidence not sure?
So you changed the coils and plugs and the only change noticed, -it's sucking more fuel.
It's running exactly the same as it was before you updated the hardware? No change? New plugs ,New coils, No change right?
#10
#11
Nah, not the IAC, don't take anything apart yet.
Next time your at Auto Zone, have it scanned anyway. The CEL will blink then shut off when misfiring, you may have a DTC on the KAM and not know it.
You need to check Fuel Delivery first, check the pressure per Haynes or Chiltons manuals.
Keep an eye on your cats in your travels as well, look for one side heating up more than the other. Could have melted the cone together at some point, just keep an eye on them for now with those miles. Check the fuel pressure ASAP and see if there's a code when scanned. The CEL doesn't have to be on to produce a fault code, have them scan it regardless, - IT'S FREE.
___________________
Also, read from post #7 here - https://www.f150online.com/forums/v8...y-circuit.html
_______________________
CEL- CheckEngineLight
DTC- DiagnosticTroubleCode
KAM- KeepAliveMemory
ASAP- FrickenPronto
Next time your at Auto Zone, have it scanned anyway. The CEL will blink then shut off when misfiring, you may have a DTC on the KAM and not know it.
You need to check Fuel Delivery first, check the pressure per Haynes or Chiltons manuals.
Keep an eye on your cats in your travels as well, look for one side heating up more than the other. Could have melted the cone together at some point, just keep an eye on them for now with those miles. Check the fuel pressure ASAP and see if there's a code when scanned. The CEL doesn't have to be on to produce a fault code, have them scan it regardless, - IT'S FREE.
___________________
Also, read from post #7 here - https://www.f150online.com/forums/v8...y-circuit.html
_______________________
CEL- CheckEngineLight
DTC- DiagnosticTroubleCode
KAM- KeepAliveMemory
ASAP- FrickenPronto
Last edited by jbrew; 02-05-2010 at 01:02 PM.