Bad misfire '90 2.9L | Ford Explorer Forums - Serious Explorations

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Bad misfire '90 2.9L

4x4exploder88

Active Member
Joined
August 24, 2010
Messages
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City, State
Clarksville,TN
Year, Model & Trim Level
1992 Eddie Bauer
I have a '90 Ranger that I acquired from my father, that had a slight miss when I got it, so I gave it a tune up, (wires, plugs, distributor cap, rotor, air filter, fuel filter and cleaned the IAC) and the miss got worse.

In succession I pulled the wires to isolate the bad cylinder and it's cylinder 4. So I checked for spark at the plug and it's getting good spark. So I took a piece of larger vacuum line and put it to each injector to see if I could hear it clicking, and I heard clicking on all injectors except cylinder 4.

So I pulled the upper intake and unbolted the fuel rail, installed a new injector, put it all back together and no go. I'm pretty sure it's just not getting fuel to the cylinder, but I can't figure out why.
 






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