intermitent miss
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intermitent miss
I have an intermitent miss that is driving me crazy, as well as, poor fuel economy(12-13MPG Hwy). Sometimes it backfires thru the intake, surges @ a steady cruise, stalls when coming to stop, spark knocks(not all the times), falls on its face when pulling away from light, etc. I have checked the timing(10btdc), codes(none), tried running on either tank, cleaned throttle body & iac, changed computer. I don't know what to do next. HELP!
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Try cleaning your O2 and your TPS...also check the routing of your number 7 and 8 spark plug wires.....sometimes when they get too close they'll cross on each other....check for bad/cracked plugs too...or bad plug wire connections...may even be a faulty coil......Luck
JR
JR
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Assuming that all the other items are functioning, build a restrictor plate out of some metal stock (16-18 gauge) and install inbetween the EGR and the manifold. Reduce the holes to 3/8" diameter and that should take care of it. Very common problem with the I-300 cid's when fuel was chnged to blended methanol!
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update
I replaced the cap, rotor, plugs, coil & re-routed spark plugs wires (FMS wires less than 8 mos old). Runs better, but intermittent miss is still present. Need help, please. The guys that I work w/ want to put a SBC in it, I want to keep it all Ford.
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Egr ??
Originally Posted by Beechkid
Assuming that all the other items are functioning, build a restrictor plate out of some metal stock (16-18 gauge) and install inbetween the EGR and the manifold. Reduce the holes to 3/8" diameter and that should take care of it. Very common problem with the I-300 cid's when fuel was chnged to blended methanol!
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From: Southern California
Originally Posted by currituckF150
My EGR valve has the metal hose on the bottom & the 2 bolt flange on side, where would this restrictor plate go? I think I know but want to make sure.
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Originally Posted by flareside_thunder
Hey Brett....I'd like to see some pics of your ride dude...sounds like it looks pretty sweet.....
JR
JR
Last edited by currituckF150; Jan 2, 2008 at 03:48 PM.
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