Checking Injectors
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Freshman User
Joined: May 2000
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From: Channahon Il.
Checking Injectors
My 90 302 has a miss and I have changed Rotor, Cap, Wires and plugs. It still misses on #7 cylinder Could this be a injector and How do I check it to see if it is working properly. Also the plug that I pulled from that Cyl. is slightly gray at the electrode tip. Thanks Don
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Joined: Sep 2004
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From: Richfield MN
Check to make sure the plug has spark while you have it out.
One thing you can also do is crank the motor with the coil wire off and then pull out plug # 7 if its not wet with gas you most likely have a bad injector.
Had one go bad on my 90 had the same symptom's you have.
If you do need one take the old one with you when you go to get one.The darn dealer sold me one for a 351 and I have a 302 !
One thing you can also do is crank the motor with the coil wire off and then pull out plug # 7 if its not wet with gas you most likely have a bad injector.
Had one go bad on my 90 had the same symptom's you have.
If you do need one take the old one with you when you go to get one.The darn dealer sold me one for a 351 and I have a 302 !
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Joined: May 2000
Posts: 38
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From: Channahon Il.
It seems like the injector might be somewhat working at higher RPM'S but below about 3000 it is missing. Is this normal for a injector. I have a couple cans of seafoam in it but it isn't helping.
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nerider
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Apr 28, 2009 09:06 AM
