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I have a 92'Red Festy with EFI. Recently, it started running really rough. The mechanic tells me piston #4 is firing intermittently. I've replaced the plugs, wires distributor and run at least a gallon of injector cleaner through it. Any other ideas?
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Good things come in small packages - and get GREAT mileage! -
Pull number 4 plug, is it fouling with oil?Contact me for information about Festiva Madness!
Remember, FestYboy is inflatable , and Scitzz means crazy, YO!
"Like I'm going to suggest we do the job right." ~Fecomatter May 28 2016. -
Do a compression check as well. You may have a burnt exhaust valve.1991 L 408,000 miles+ w/NEW B3 longblock!!
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Injector cleaner doesn't really work pull the injector out and do an ohm test. It should have 14-16ohms of resistance. It might just be a weak injector. Make sure you get an o-ring kit before putting it back in, pull all the injectors and clean them with brake parts cleaner and try clean the inside the best you can, I know its hard, but usually a weak injector can do that."If you're not first you're last!" -Ricky Bobby
-91L "Oliver" Now B6DE swapped with an ATX Capri ECU on a MTX!!!!
The little Festy that could...and did!
(Gone on to a new life)
-90 Ford Bronco II Eddie BauerComment
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A quick test....while the engine is running at idle....pull the wire from each individual spark plug and the put back in place....while the wire is removed...the idel should decrease considerably the be restored while the wire is preplaced. This will locate/verify the bad cylinder.
It's important to verify that the problem is with only one cylinder. If it is not...the problem could be with the VAF or air intake system.....problems produce the symptons you describe.
Compression test would be the best.Joe Lutz
The SKATE ..... 1992L 5spd
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